CN103064763A - Data backup method and related device and system - Google Patents

Data backup method and related device and system Download PDF

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Publication number
CN103064763A
CN103064763A CN2012105786149A CN201210578614A CN103064763A CN 103064763 A CN103064763 A CN 103064763A CN 2012105786149 A CN2012105786149 A CN 2012105786149A CN 201210578614 A CN201210578614 A CN 201210578614A CN 103064763 A CN103064763 A CN 103064763A
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China
Prior art keywords
backup
snapshot
storage device
data
main storage
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CN2012105786149A
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CN103064763B (en
Inventor
邹锋哨
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Guangdong Gaohang Intellectual Property Operation Co ltd
Haining hi tech Zone Science and Innovation Center Co.,Ltd.
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Huawei Technologies Co Ltd
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Priority to CN201210578614.9A priority Critical patent/CN103064763B/en
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Priority to PCT/CN2013/080459 priority patent/WO2014101409A1/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1446—Point-in-time backing up or restoration of persistent data
    • G06F11/1448—Management of the data involved in backup or backup restore
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2201/00—Indexing scheme relating to error detection, to error correction, and to monitoring
    • G06F2201/84—Using snapshots, i.e. a logical point-in-time copy of the data

Abstract

An embodiment of the invention discloses a data backup method and a related device and system. The data backup method includes: performing snapshot technology processing after a main storage device receives backup indications of a backup trigger strategy transmitted by a backup server, and transmitting backup data to the backup server and the backup storage device. Due to the fact that no application server participates in the backup progress, the self service performance of the application server cannot be influenced by backup software of an operation client side of the application server or backup data of a disk mirroring function software, normal operation of the application server can be achieved, and simultaneously efficient data backup can be achieved, namely the data backup function does not interfere with an operation service software of the application server.

Description

A kind of data back up method and relevant device, system
Technical field
The application relates to the technology of data copy field, is specifically related to a kind of data back up method and relevant device, system.
Background technology
At present; because the surge of data volume and the huge memory property of database and equipment application function is abundant; it is particularly important that the data security problem seems, thereby the backup mode that derives of various redundancy technique and various redundancy technique is constantly deepened the awareness of data protection importance along with people and developed rapidly.
Technology of data copy refers to misoperation occur or the system failure causes loss of data for anti-locking system, and the process of the storage medium that all or part of data acquisition is copied to other from hard disk or the array of applied host machine.Traditional Host Based backup is operation disk mirroring functional software in application server normally, in the time of will sending to main storage device to the write operation of the logical unit number in the main storage device, be distributed in the lump backup storage device and then back up data in the backup storage device; Perhaps running client backup software in application server, by the write operation of record to main storage device, then the write operation that recorded of timed sending is to backup server, and the write operation that backup server is sent recorded is to backup storage device.When adopting traditional Host Based backup scenario, if backup data quantity is very large, then the memory consumption of application server is very large, and also to move other professional application software when application server running client backup software or disk mirroring functional software, not only affect speed and the quality of Backup Data, also affected other application performances of application server.
Summary of the invention
The embodiment of the present application provides a kind of data back up method and relevant device, when having solved existing backup method and back up based on application server realizing, has affected the problem of other application performances of application server.
First aspect, the embodiment of the present application provide a kind of data back up method, comprising:
Main storage device receives the backup indication that backup server sends, and described backup indication is used to indicate the snapshot that described main storage device generates source book;
Described main storage device generates the snapshot of source book;
Described main storage device sends the snapshot sign of described snapshot to described backup server;
Described main storage device receives the signaling of the valid data bitmap of the described snapshot of inquiry that described backup server sends;
Described main storage device is inquired about the valid data bitmap of described snapshot according to the signaling of the valid data bitmap of the described snapshot of described inquiry;
Described main storage device sends the valid data bitmap of described snapshot to described backup server, so that described backup server backs up the valid data bitmap of described snapshot to backup storage device;
Described main storage device receives the signaling of valid data corresponding to the valid data bitmap of the described snapshot of inquiry that described backup server sends;
Described main storage device is inquired about described valid data according to the signaling of valid data corresponding to the valid data bitmap of the described snapshot of described inquiry;
Described main storage device sends described valid data to described backup server, so that described backup server backs up described valid data to described backup storage device.
In conjunction with first aspect, in the possible implementation of the first, described main storage device generates before the snapshot of source book, and described method also comprises:
Main storage device creates source book;
Described main storage device shines upon described source book to application server so that the described source book of described application server carry, with the data of storing described application server to described source book.
In conjunction with first aspect, in the possible implementation of the second, the snapshot sign that described main storage device sends described snapshot is to the described backup server, and described main storage device receives before the signaling of valid data bitmap of the described snapshot of inquiry that described backup server sends, and described method also comprises:
Described main storage device receives the first indication that described backup server sends, and described the first indication is used to indicate described main storage device and sets up mapping relations between described snapshot and the described backup server;
Described main storage device is indicated the mapping relations of setting up between described snapshot and the described backup server according to described first, so that the described snapshot of described backup server carry.
In conjunction with the possible implementation of the second of first aspect, in the third possible implementation, described method also comprises:
Described main storage device receives the second indication that described backup server sends, and described the second indication is used to indicate described main storage device and removes mapping relations between described backup server and described snapshot;
Described main storage device is removed the mapping relations between described backup server and described snapshot.
In conjunction with first aspect or in conjunction with the possible implementation of the first of first aspect any implementation to the third possible implementation, in the 4th kind of possible implementation, described method also comprises:
Described main storage device receives the 3rd indication that described backup server sends, and described the 3rd indication is used to indicate the described snapshot that described main storage device is deleted described source book;
Described main storage device is deleted the described snapshot of described source book.
Second aspect, the embodiment of the present application provide a kind of data back up method, comprising:
Backup server sends the backup indication to main storage device, generates the snapshot of source book to indicate described main storage device, sends the snapshot sign of described snapshot to described backup server by described main storage device;
Described backup server receives the snapshot sign that described main storage device sends;
Described backup server sends the signaling of the valid data bitmap of inquiring about described snapshot to described main storage device, so that described main storage device is inquired about the valid data bitmap of described snapshot according to the signaling of the valid data bitmap of the described snapshot of described inquiry;
Described backup server receives the valid data bitmap of the described snapshot of described main storage device transmission;
Described backup server backs up the valid data bitmap of described snapshot to backup storage device;
Described backup server receives the feedback information of the valid data bitmap that backs up described snapshot of described backup storage device transmission;
The signaling of the valid data that the described valid data bitmap that described backup server sends the described snapshot of inquiry according to the described described feedback information that has backed up the valid data bitmap of described snapshot is corresponding is to described main storage device, so that described main storage device is inquired about described valid data according to the described signaling of valid data corresponding to the described valid data bitmap of the described snapshot of described inquiry;
Described backup server receives the described valid data that described main storage device sends;
Described backup server backs up described valid data to described backup storage device;
Described backup server receives the feedback information of the described valid data that back up described snapshot of described backup storage device transmission.
In conjunction with second aspect, in the possible implementation of the first, described backup server receives after the snapshot sign of described main storage device transmission, and the signaling of valid data bitmap that described backup server sends the described snapshot of inquiry is to before the described main storage device, and described method also comprises:
Described backup server sends the first indication to described main storage device, so that described main storage device is indicated the mapping relations of setting up between described snapshot and the described backup server according to described first;
Described backup server is according to the mapping relations between described snapshot and the described backup server, the described snapshot of carry.
In conjunction with the possible implementation of the first of second aspect, in the possible implementation of the second, described method also comprises:
Described backup server sends the second indication to described main storage device, so that described main storage device is removed the mapping relations between described backup server and described snapshot.
In conjunction with the first of second aspect or second aspect possible implementation or the possible implementation of the second, in the third possible implementation, described method also comprises:
Described backup server sends the 3rd indication to described main storage device, so that described main storage device is deleted the described snapshot of described source book.
The third aspect, the embodiment of the present application provide a kind of data back up method, comprising:
Main storage device receives backup server according to Preset Time, the backup indication that intermittent sends, described backup indication is used to indicate described main storage device generating snapshot, and described Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data;
Described main storage device is according to described backup indication generating snapshot;
Described main storage device sends the snapshot sign of described snapshot to described backup server;
The signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with described this Backup Data of the snapshot when described main storage device receives described this Backup Data of inquiry that described backup server sends;
Described variance data bitmap between the snapshot the when snapshot the when signaling of the variance data bitmap between the snapshot of described main storage device during according to the snapshot of inquiry during described this a Backup Data front Backup Data adjacent with described this Backup Data is inquired about described this Backup Data and a front Backup Data adjacent with described this Backup Data;
Described variance data bitmap between the snapshot during the front Backup Data adjacent with described this Backup Data of the snapshot when described main storage device sends described this Backup Data is to described backup server, so that the described variance data bitmap between the snapshot the during snapshot of described backup server when backing up described this a Backup Data front Backup Data adjacent with described this Backup Data is to backup storage device;
Described main storage device receives the signaling of variance data corresponding to the described variance data bitmap of inquiry that described backup server sends;
Described main storage device is inquired about described variance data according to the described signaling of variance data corresponding to the described variance data bitmap of described inquiry;
Described main storage device sends described variance data to described backup server, so that described backup server backs up described variance data to described backup storage device.
In conjunction with the third aspect, in the possible implementation of the first, the snapshot sign that described main storage device sends described snapshot is to the described backup server, and before the signaling of the variance data bitmap between the snapshot the during snapshot of described main storage device when receiving described this Backup Data of inquiry that described backup server sends a front Backup Data adjacent with described this Backup Data, described method also comprises:
Described main storage device receives the first indication that described backup server sends, and described the first indication is used to indicate described main storage device and sets up mapping relations between described snapshot and the described backup server;
Described main storage device is indicated the mapping relations of setting up between described snapshot and the described backup server according to described first, so that the described snapshot of described backup server carry.
In conjunction with the possible implementation of the first of the third aspect, in the possible implementation of the second, described method also comprises:
Described main storage device receives the second indication that described backup server sends, and described the second indication is used to indicate described main storage device and removes mapping relations between described backup server and described snapshot;
Described main storage device is removed the mapping relations between described backup server and described snapshot.
In conjunction with the first of the third aspect or the third aspect possible implementation or the possible implementation of the second, in the third possible implementation, described method also comprises:
Described main storage device receives the 3rd indication that described backup server sends, and described the 3rd indication is used to indicate the snapshot when deleting a front Backup Data adjacent with described this Backup Data;
Snapshot when described main storage device is deleted a front Backup Data adjacent with described this Backup Data.
Fourth aspect, the embodiment of the present application provide a kind of data back up method, comprising:
Backup server is according to Preset Time, intermittent sends the backup indication to main storage device, so that described main storage device is according to described backup indication generating snapshot, by described main storage device generating snapshot, and the snapshot sign that sends described snapshot is to described backup server; Described Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data;
Described backup server receives the snapshot sign of the described snapshot of described main storage device transmission;
The signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with described this Backup Data of the described snapshot when described backup server sends described this Backup Data of inquiry is to described main storage device so that described main storage device when inquiring about described this Backup Data snapshot and the described variance data bitmap between the snapshot during a front Backup Data adjacent with described this Backup Data;
Described variance data bitmap between the snapshot when the described snapshot when described backup server receives described this Backup Data and a front Backup Data adjacent with described this Backup Data;
Described variance data bitmap between the snapshot the when snapshot during described this Backup Data of described backup server backup and a front Backup Data adjacent with described this Backup Data is to backup storage device;
Described backup server receives the feedback information that backs up described variance data bitmap that described backup storage device sends;
Described backup server sends the signaling of variance data corresponding to the described variance data bitmap of inquiry to described main storage device, so that described main storage device is inquired about variance data corresponding to described variance data bitmap;
Described backup server receives the described variance data that described main storage device sends;
Described backup server backs up described variance data to described backup storage device;
Described backup server receives the feedback information that backs up described variance data that described backup storage device sends.
In conjunction with fourth aspect, in the possible implementation of the first, described backup server receives after the snapshot sign of the described snapshot that described main storage device sends, and the signaling of the variance data bitmap between the snapshot during the described backup server described snapshot when sending described this Backup Data of an inquiry front Backup Data adjacent with described this Backup Data is extremely before the described main storage device, and described method also comprises:
Described backup server sends the first indication to described main storage device, so that described main storage device is indicated the mapping relations of setting up between described snapshot and the described backup server according to described first;
Described backup server is according to the described snapshot of described mapping relations carry.
In conjunction with the possible implementation of the first of fourth aspect, in the possible implementation of the second, described method also comprises:
Described backup server sends the second indication to described main storage device, so that described main storage device is according to the mapping relations between described the second indication described backup server of releasing and described snapshot.
In conjunction with the first of fourth aspect or fourth aspect possible implementation or the possible implementation of the second, in the third possible implementation, described method also comprises:
Described backup server sends the 3rd indication to described main storage device, so that the snapshot of described main storage device during according to described the 3rd an indication deletion front Backup Data adjacent with described this Backup Data.
The 5th aspect, the embodiment of the present application provide a kind of memory device, comprising:
Receiving element is used for receiving the backup indication that backup server sends, and described backup indication is used to indicate the snapshot that described memory device generates source book;
The snapshot unit is for the snapshot that generates source book;
Transmitting element is used for sending the snapshot sign of described snapshot to described backup server;
Described receiving element also is used for receiving the signaling of the valid data bitmap of the described snapshot of inquiry that described backup server sends;
Processing unit is used for inquiring about according to the signaling of the valid data bitmap of the described snapshot of described inquiry the valid data bitmap of described snapshot;
Described transmitting element also is used for sending the valid data bitmap of described snapshot to described backup server, so that described backup server backs up the valid data bitmap of described snapshot to backup storage device;
Described receiving element also is used for receiving the signaling of valid data corresponding to the valid data bitmap of the described snapshot of inquiry that described backup server sends;
Described processing unit also is used for inquiring about described valid data according to the signaling of valid data corresponding to the valid data bitmap of the described snapshot of described inquiry;
Described transmitting element also is used for sending described valid data to described backup server, so that described backup server backs up described valid data to described backup storage device.
In conjunction with the 5th aspect, in the possible implementation of the first, this memory device also comprises:
Creating unit is used for creating source book;
Map unit is used for shining upon described source book to application server so that the described source book of described application server carry, with the data of storing described application server to described source book.
In conjunction with the 5th aspect, in the possible implementation of the second,
Described receiving element also is used for receiving the first indication that described backup server sends; Described the first indication is used to indicate described main storage device and sets up mapping relations between described snapshot and the described backup server;
Described processing unit is also for the mapping relations of setting up according to described the first indication between described snapshot and the described backup server, so that the described snapshot of described backup server carry.
In conjunction with the possible implementation of the second of the 5th aspect, in the third possible implementation,
Described receiving element also is used for receiving the second indication that described backup server sends, and described the second indication is used to indicate described main storage device and removes mapping relations between described backup server and described snapshot;
Described processing unit also is used for removing the mapping relations between described backup server and described snapshot.
In conjunction with the first of the 5th aspect or the 5th aspect possible implementation or possible implementation or the third the possible implementation of the second,
Described receiving element also is used for receiving the 3rd indication that described backup server sends, and described the 3rd indication is used to indicate the described snapshot that described main storage device is deleted described source book;
Described processing unit is also for the described snapshot of deleting described source book.
The 6th aspect, the embodiment of the present application provide a kind of server, comprising:
Transmitting element is used for sending the backup indication to main storage device, generates the snapshot of source book to indicate described main storage device, sends the snapshot sign of described snapshot to described backup server by described main storage device;
Receiving element is used for receiving the snapshot sign that described main storage device sends;
Described transmitting element also is used for sending the signaling of the valid data bitmap of inquiring about described snapshot to described main storage device, so that described main storage device is inquired about the valid data bitmap of described snapshot according to the signaling of the valid data bitmap of the described snapshot of described inquiry;
Described receiving element also is used for receiving the valid data bitmap of the described snapshot that described main storage device sends;
Backup units is used for backing up the valid data bitmap of described snapshot to backup storage device;
Described receiving element also is used for receiving the feedback information of the valid data bitmap that backs up described snapshot that described backup storage device sends;
Described transmitting element, the signaling of the valid data that the described valid data bitmap that also is used for sending the described snapshot of inquiry according to the described described feedback information that has backed up the valid data bitmap of described snapshot is corresponding is to described main storage device, so that described main storage device is inquired about described valid data according to the described signaling of valid data corresponding to the described valid data bitmap of the described snapshot of described inquiry;
Described receiving element also is used for receiving the described valid data that described main storage device sends;
Described backup units also is used for backing up described valid data to described backup storage device;
Described receiving element also is used for receiving the feedback information of the described valid data that back up described snapshot that described backup storage device sends.
In conjunction with the 6th aspect, in the possible implementation of the first,
Described transmitting element also is used for sending the first indication to described main storage device according to described snapshot sign, so that described main storage device is indicated the mapping relations of setting up between described snapshot and the described backup server according to described first;
Described server also comprises: processing unit is used for according to the described snapshot of mapping relations carry between described snapshot and the described server.
In conjunction with the possible implementation of the first of the 6th aspect, in the possible implementation of the second,
Described transmitting element also is used for sending the second indication to described main storage device, so that described main storage device is removed the mapping relations between described backup server and described snapshot.
In conjunction with the first of second aspect or second aspect possible implementation or the possible implementation of the second, in the third possible implementation,
Described transmitting element also is used for sending the 3rd indication to described main storage device, so that described main storage device is deleted the described snapshot of described source book.
The 7th aspect, the embodiment of the present application provide a kind of memory device, comprising:
Receiving element, be used for receiving backup server according to Preset Time, the backup indication that intermittent sends, described backup indication is used to indicate described memory device generating snapshot, and described Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data;
The snapshot unit is used for according to described backup indication generating snapshot;
Transmitting element is used for sending the snapshot sign of described snapshot to described backup server;
Described receiving element, the signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with described this Backup Data of the snapshot when also being used for receiving described this Backup Data of inquiry that described backup server sends;
Processing unit, the described variance data bitmap between the snapshot the when snapshot the when signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with described this Backup Data of the snapshot when being used for according to described this Backup Data of described inquiry is inquired about described this Backup Data and a front Backup Data adjacent with described this Backup Data;
Described transmitting element, described variance data bitmap between the snapshot during the front Backup Data adjacent with described this Backup Data of the snapshot when also being used for sending described this Backup Data is to described backup server, so that the described variance data bitmap between the snapshot the during snapshot of described backup server when backing up described this a Backup Data front Backup Data adjacent with described this Backup Data is to backup storage device;
Described receiving element also is used for receiving the signaling of variance data corresponding to the described variance data bitmap of inquiry that described backup server sends;
Described processing unit also is used for inquiring about described variance data according to the described signaling of variance data corresponding to the described variance data bitmap of described inquiry;
Described transmitting element also is used for sending described variance data to described backup server, so that described backup server backs up described variance data to described backup storage device.
In conjunction with the 7th aspect, in the possible implementation of the first, described receiving element also is used for receiving the first indication that described backup server sends; Described the first indication is used to indicate described main storage device and sets up mapping relations between described snapshot and the described backup server;
Described processing unit is also for the mapping relations of setting up according to described the first indication between described snapshot and the described backup server, so that the described snapshot of described backup server carry.
In conjunction with the possible implementation of the first of the 7th aspect, in the possible implementation of the second,
Described receiving element also is used for receiving the second indication that described backup server sends, and described the second indication is used to indicate described main storage device and removes mapping relations between described backup server and described snapshot;
Described processing unit also is used for removing the mapping relations between described backup server and described snapshot.
In conjunction with the first of the 7th aspect or the 7th aspect possible implementation or the possible implementation of the second, in the third possible implementation,
Described receiving element also is used for receiving the 3rd indication that described backup server sends, and described the 3rd indication is used to indicate the snapshot when deleting a front Backup Data adjacent with described this Backup Data;
Described processing unit, the snapshot when also being used for deleting a front Backup Data adjacent with described this Backup Data.
Eight aspect, the embodiment of the present application provide a kind of server, comprising:
Transmitting element, be used for according to Preset Time, intermittent sends the backup indication to main storage device, so that described main storage device is according to described backup indication generating snapshot, by described main storage device generating snapshot, and the snapshot sign that sends described snapshot is to described backup server; Described Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data;
Receiving element is for the snapshot sign of the described snapshot that receives described main storage device transmission;
Described transmitting element, the signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with described this Backup Data of the described snapshot when also be used for sending described this Backup Data of inquiry is to described main storage device so that described main storage device when inquiring about described this Backup Data snapshot and the described variance data bitmap between the snapshot during a front Backup Data adjacent with described this Backup Data;
Described receiving element, the described variance data bitmap between the snapshot when the described snapshot when also being used for receiving described this Backup Data and a front Backup Data adjacent with described this Backup Data;
Backup units, the described variance data bitmap between the snapshot the when snapshot when being used for backing up described this Backup Data and a front Backup Data adjacent with described this Backup Data is to backup storage device;
Described receiving element also is used for receiving the feedback information that backs up described variance data bitmap that described backup storage device sends;
Described transmitting element also is used for sending the signaling of variance data corresponding to the described variance data bitmap of inquiry to described main storage device, so that described main storage device is inquired about variance data corresponding to described variance data bitmap;
Described receiving element also is used for receiving the described variance data that described main storage device sends;
Described backup units also is used for backing up described variance data to described backup storage device;
Described receiving element also is used for receiving the feedback information that backs up described variance data that described backup storage device sends.
In conjunction with eight aspect, in the possible implementation of the first,
Described transmitting element also is used for sending the first indication to described main storage device according to the snapshot sign of described snapshot, so that described main storage device is indicated the mapping relations of setting up between described snapshot and the described backup server according to described first;
Described server also comprises: processing unit is used for according to the described snapshot of described mapping relations carry.
In conjunction with the possible implementation of the first of eight aspect, in the possible implementation of the second,
Described transmitting element also is used for sending the second indication to described main storage device, so that described main storage device is according to the mapping relations between described the second indication described backup server of releasing and described snapshot.
In conjunction with the possible implementation of the first of eight aspect or eight aspect or in the possible implementation of the second, in the third possible implementation,
Described transmitting element also be used for to send the 3rd indication to described main storage device, so that the snapshot of described main storage device during according to described the 3rd an indication deletion front Backup Data adjacent with described this Backup Data.
The 9th aspect, the embodiment of the present application provides a kind of data backup system, comprise the 5th aspect or in conjunction with any main storage device in the possible four kinds of possible implementations of implementation to the of the first of the 5th aspect, and comprise such as claim the six aspects or in conjunction with the possible implementation of the first of the 6th aspect any backup server to the third possible implementation; Described data backup system also comprises:
Backup storage device is used for the valid data bitmap of the snapshot of the source book that the storage and backup service device sends;
Described backup storage device also be used for to send the described backup server that feeds back to of the valid data bitmap that backed up described snapshot;
Described backup storage device also is used for the valid data corresponding with the valid data bitmap that the storage and backup service device sends;
Described backup storage device also be used for to send the described backup server that feeds back to of the valid data of having stored described snapshot.
The tenth aspect, the embodiment of the present application provides a kind of data backup system, comprise the 7th aspect or in conjunction with the possible implementation of the first of the 7th aspect any main storage device to the third possible implementation, and comprise that eight aspect provides or in conjunction with the possible implementation of the first of eight aspect any backup server to the third possible implementation; Described data backup system also comprises:
Backup storage device, the variance data bitmap between the snapshot the when snapshot when being used for this Backup Data of storage and a front Backup Data adjacent with described this Backup Data;
Described backup storage device also is used for sending having backed up the described backup server of feeding back to of described variance data bitmap;
Described backup storage device also is used for the storage described variance data corresponding with described variance data bitmap to described backup storage device;
Described backup storage device also is used for sending having stored the described backup server of feeding back to of described variance data.
After the embodiment of the present application receives the backup indication of the triggering backup policy that backup server sends by main storage device, process through snapping technique, send the data of backup to backup server and backup storage device, there is not the participation of application server in the backup procedure, avoided having influence on by application server running client backup software or disk mirroring functional software Backup Data the service feature of application server self, when having realized the normal operation of application server, the function of high-level efficiency Backup Data, i.e. Backup Data function and application server operation business software does not interfere with each other.
The embodiment of the present application sends the valid data bitmap of snapshot of the source book inquire to backup server by main storage device, so that backup server sends the valid data bitmap or further sends valid data corresponding to valid data bitmap to backup storage device, make backup storage device can back up active data, and then without the data of backup invalidation, simplified Backup Data.Perhaps, variance data bitmap between the snapshot when snapshot when sending this Backup Data that inquires by main storage device and a front Backup Data adjacent with this Backup Data is to backup server, so that variance data corresponding to the variance data bitmap of the snapshot when backup server sends twice adjacent Backup Data or this variance data bitmap is to backup storage device, make backup storage device only back up the data of there are differences, save the storage space of backup storage device, further promoted backup efficient.By full backup or incremental backup so that the selectivity of backup scenario is more, and the performance of application server is without any impact, and by backup server valid data, effective bitmap or variance data variance data bitmap are stored in the file, can use the model that is different from primary storage, namely support the isomery storage, strengthened the general applicability of each equipment in the standby system.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiment of the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the process flow diagram of a kind of data back up method of providing of the embodiment of the present application one;
Fig. 2 is the process flow diagram of a kind of data back up method of providing of the embodiment of the present application two;
Fig. 3 a is the shared storage architecture synoptic diagram that the embodiment of the present application provides;
Fig. 3 b is the full dose data bitmap of the full backup that provides of the embodiment of the present application;
Fig. 3 c is data bit figure synoptic diagram corresponding to snapshot that obtains when backing up the embodiment of the present application provides for the first time;
Fig. 3 d is the variance data bitmap synoptic diagram that obtains when backing up the embodiment of the present application provides for the first time;
Fig. 3 e is the variance data bitmap synoptic diagram that obtains when backing up the embodiment of the present application provides for the second time;
Fig. 3 f be the embodiment of the present application provide back up for the third time the time variance data bitmap synoptic diagram that obtains;
Fig. 3 g be the embodiment of the present application provide return to full dose data bit figure synoptic diagram when backing up for the third time;
Fig. 4 is the process flow diagram of a kind of data back up method of providing of the embodiment of the present application three;
Fig. 5 is the process flow diagram of a kind of data back up method of providing of the embodiment of the present application four;
Fig. 6 is the structural representation of a kind of memory device of providing of the embodiment of the present application five;
Fig. 7 is the another kind of memory device structural representation that the embodiment of the present application five provides;
Fig. 8 is a kind of server architecture synoptic diagram that the embodiment of the present application six provides;
Fig. 9 is the another kind of server architecture synoptic diagram that the embodiment of the present application six provides;
Figure 10 is the structural representation of a kind of memory device of providing of the embodiment of the present application seven;
Figure 11 is the structural representation of the another kind of memory device that provides of the embodiment of the present application seven;
Figure 12 is the structural representation of a kind of server of providing of the embodiment of the present application eight;
Figure 13 is the structural representation of the another kind of server that provides of the embodiment of the present application eight;
Figure 14 is the structural representation of a kind of data backup system of providing of the embodiment of the present application nine;
Figure 15 is the structural representation of a kind of data backup system of providing of the embodiment of the present application ten.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the application's protection.
Below by specific embodiment, be described in detail respectively.
The application the first embodiment provide a kind of data back up method, mainly be based on the backup of data block, in sharing storage architecture, the data of application server are kept on the main storage device of bottom, in order to guarantee the data reliability of server, usually need to the data in the main storage device that be kept at bottom be backed up, in order to avoid during the application system fault, obliterated data can not return to normal condition.Present embodiment is by adopting backup server and backup storage device to carry out data backup.Particularly, see also Fig. 1, Fig. 1 is the process flow diagram of a kind of data back up method of providing of the embodiment of the present application one; The data back up method that present embodiment one provides is that the angle with the main storage device in the full backup situation is described.As shown in Figure 1, the data back up method that present embodiment provides comprises:
S111, main storage device receive the backup indication that backup server sends.
Wherein, the backup indication is used to indicate the snapshot that main storage device generates source book.
S112, main storage device generate the snapshot of source book.
Wherein, source book is generated a snapshot, in order to carry out full backup, namely the snapshot of source book can be used as final backup, the application system is realized comprehensively fast quick-recovery.Storage networking industry association to the definition of snapshot is: about a complete usable copy of specific data set, this copy comprises that corresponding data is at the reflection of certain time point (time point of copy beginning).Snapshot can be a copy of its represented data, also can be a duplicate of data.The Main Function of snapshot mainly is can carry out online data to recover, and can carry out timely data and recover when memory device generation application and trouble or file corruption, data is reverted to the state of snapshot generation time point.Another effect of snapshot is for the storage user provides another one data access passage, uses online when processing when former data, and the user can access snapshot data, can also utilize snapshot the work such as to test.
The snapshot that S113, main storage device send snapshot identifies to backup server, so that backup server sends the first indication to main storage device.
Wherein, the first indication is used to indicate main storage device and sets up mapping relations between snapshot and the backup server.
S114, main storage device receive the first indication.
S115, main storage device are indicated the mapping relations of setting up between snapshot and the backup server according to first, so that backup server carry snapshot.
The signaling of the valid data bitmap of the inquiry snapshot that S116, main storage device reception backup server send.
Optionally, in other embodiments, can be without this snapshot of carry, main storage device directly receives the signaling of the valid data bitmap of the inquiry snapshot that backup server sends, inquiry valid data bitmap.Be that step S114 and step S115 can not carry out.
In step S116, the valid data bitmap of the snapshot of order main storage device inquiry source book is in order to carry out full backup, the strategy of full backup namely is that the snapshot to source book backs up, concrete valid data bitmap or valid data corresponding to valid data bitmap for the snapshot that obtains source book are so that the full backup strategy of valid data corresponding to the valid data bitmap of snapshot of source book is obtained in follow-up further realization.
S117, main storage device are inquired about the valid data bitmap of snapshot according to the signaling of the valid data bitmap of inquiry snapshot.
S118, main storage device send the valid data bitmap of snapshot to backup server, so that the valid data bitmap of backup server backup snapshots is to backup storage device.
The signaling of the valid data that the valid data bitmap of the inquiry snapshot that S119, main storage device reception backup server send is corresponding.
S120, main storage device are inquired about valid data according to the signaling of valid data corresponding to the valid data bitmap of inquiry snapshot.
S121, main storage device send valid data to backup server, so that backup server backup valid data are to backup storage device.Backup server further backs up valid data to backup storage device, multi-level data backup, so that improve backup performance, even if application server and backup server have fault, also can be from backup storage device extracted valid data, recover the fault of application server, improved backup quality.Get access to valid data bitmap and valid data corresponding to valid data bitmap by backup server, then can be recovered according to the valid data in the valid data application server in the valid data bitmap by backup server.Then without the backup invalidation data, reduce the data volume of backup, promoted backup speed.
After the data back up method that present embodiment provides receives the backup indication of the triggering backup policy that backup server sends by main storage device, process through snapping technique, the data of inquiry and transmission backup are to backup server and backup storage device, there is not the participation of application server in the backup procedure, avoided having influence on by application server running client backup software or disk mirroring functional software Backup Data the service feature of application server self, when having realized the normal operation of application server, the function of high-level efficiency Backup Data, i.e. Backup Data function and application server operation business software does not interfere with each other.Mainly send the valid data bitmap of snapshot of the source book that inquires to backup server by main storage device, so that backup server sends the valid data bitmap to backup storage device, make backup storage device can back up effective bitmap, so that standby system further obtains active data, and then without the data of backup invalidation, simplified Backup Data.
As a kind of optional embodiment, before based on step S111 shown in Figure 1, namely main storage device generates before the snapshot of source book, and the method is further comprising the steps of:
A, main storage device create source book.
B, main storage device mapping source book is to application server so that application server carry source book, with the data of storage application server to source book.
Wherein, the relation of establishing a communications link between main storage device and the application server mainly is the sign that gets access to the source book of main storage device by application server, so that the carry source book is to application server, the data write operation of application server is stored.Namely store the data of application server when the operation system.
The data back up method that present embodiment provides sends identifying to application server of source book by the relation of establishing a communications link between main storage device and the application server, by the data of application server carry source book with the storage application server.
As a kind of optional embodiment, the data back up method that present embodiment provides is further comprising the steps of:
1, main storage device receives the second indication that backup server sends.Wherein, the second indication is used to indicate the mapping relations between main storage device releasing backup server and snapshot.
2, main storage device is removed the mapping relations between backup server and snapshot.
As a kind of optional embodiment, the data back up method that present embodiment provides is further comprising the steps of:
A, main storage device receive the 3rd indication that backup server sends.Wherein, the 3rd indication is used to indicate the snapshot of main storage device deletion source book.
The snapshot of b, main storage device deletion source book.
See also Fig. 2, Fig. 2 is the process flow diagram of a kind of data back up method of providing of the embodiment of the present application two.The data back up method that present embodiment two provides is to describe with the angle of the backup server in the full backup situation, and as shown in Figure 2, the data back up method that present embodiment provides can may further comprise the steps:
S211, backup server send the backup indication to main storage device, and with the snapshot of indication main storage device generation source book, the snapshot that is sent snapshot by main storage device identifies to backup server.
Wherein, the backup indication is used to indicate the snapshot that main storage device generates source book, begins to carry out full backup to trigger standby system, carries out the full backup strategy.And, send identifying to application server of source book by main storage device, so that application server carry source book is to application server, with the data of storage application server.The relation of establishing a communications link between main storage device and the application server, the data write operation of application server is stored, and namely stores the data of application server when the operation system.
S212, backup server receive the snapshot sign that main storage device sends.
S213, backup server send the first indication to main storage device, so that main storage device is indicated the mapping relations of setting up between snapshot and the backup server according to first.
S214, backup server be according to the mapping relations between snapshot and the backup server, the carry snapshot.Wherein, backup server can utilize the data in the data application server in the snapshot to recover.
The signaling that S215, backup server send the valid data bitmap of inquiring about snapshot is to main storage device, so that main storage device is according to the valid data bitmap of the signaling inquiry snapshot of the valid data bitmap of inquiry snapshot.
Optionally, in other embodiments, can omit step S213 and step S214, be that backup server does not need this snapshot of carry, the signaling of valid data bitmap that can send this snapshot of inquiry according to the snapshot that receives sign makes main storage device inquire about the valid data bitmap of this snapshot to main storage device.
Wherein, the valid data bitmap of the snapshot of inquiry source book is in order to carry out full backup, the strategy of full backup namely is that the snapshot to source book backs up, concrete valid data bitmap and valid data corresponding to valid data bitmap for the snapshot that obtains source book are so that the full backup strategy of valid data corresponding to the valid data bitmap of snapshot of source book is obtained in follow-up further realization.
S216, backup server receive the valid data bitmap of the snapshot of main storage device transmission.
The valid data bitmap of S217, backup server backup snapshots is to backup storage device.
The feedback information of the valid data bitmap of the backup snapshots that S218, backup server reception backup storage device send.
S219, backup server send the signaling of valid data corresponding to the valid data bitmap of inquiry snapshot to main storage device, so that main storage device is according to the signaling inquiry valid data of valid data corresponding to the valid data bitmap of inquiry snapshot according to the feedback information of the valid data bitmap of backup snapshots.
Wherein, by effective bitmap is further processed, in order to further obtain valid data corresponding to valid data bitmap.Can recover data in the source book of main storage device according to this valid data, and then make application server recover the situation of normal operation.Further back up valid data to backup storage device by backup server, multi-level data backup, so that improve backup performance, even if application server and backup server have fault, also can be from backup storage device extracted valid data, recover the fault of application server, improved backup quality.
S220, backup server receive the valid data that main storage device sends.
S221, backup server backup valid data are to backup storage device.
The feedback information of the valid data of the backup snapshots that S222, backup server reception backup storage device send.
The data back up method that present embodiment provides, sending the backup that triggers backup policy by backup server indicates to main storage device, main storage device is processed through snapping technique, send the data of backup to backup server and backup storage device, there is not the participation of application server in the backup procedure, avoided having influence on by application server running client backup software or disk mirroring functional software Backup Data the service feature of application server self, when having realized the normal operation of application server, the function of high-level efficiency Backup Data, i.e. Backup Data function and application server operation business software does not interfere with each other.Snapshot by backup server carry source book, behind the valid data bitmap by main storage device inquiry snapshot, send the valid data bitmap of snapshot to backup server, and then behind the valid data bitmap of the snapshot of backup server reception main storage device transmission, the valid data bitmap of backup snapshots is to backup storage device.Then without the backup invalidation data, reduce the data volume of backup, promoted backup speed.
As a kind of optional embodiment, the data back up method that present embodiment provides also comprises:
Backup server sends the second indication to main storage device, so that main storage device is removed the mapping relations between backup server and snapshot.
As a kind of optional embodiment, the data back up method that present embodiment provides also comprises:
Backup server sends the 3rd indication to main storage device, so that the snapshot of main storage device deletion source book.
See also Fig. 3 a, Fig. 3 a is the shared storage architecture synoptic diagram that the embodiment of the present application provides.Shown in Fig. 3 a, the shared storage architecture that data back up method that present embodiment provides is used based on equipment comprise: carry the application server 31, backup server 32 of application operating system, with main storage device 33 and a backup storage device 34 of snapshot functions.Wherein, the application server 31 that carries application operating system can carry out business processing, can generate the snapshot of the operation that application server writes data with the main storage device 33 of snapshot functions.Setting up between application server 31 and the main storage device 33 has the communication connection relation, and the source book by application server 31 carry main storage devices is with the data of storage application server 31.Setting up between backup server 32 and the main storage device 33 has the communication connection relation, with the snapshot of carry main storage device 33 generations.And foundation has the communication connection relation between backup server 32 and the backup storage device 34, backs up in the backup storage device 34 with valid data or the valid data bitmap that backup server 32 is obtained.When standby system was carried out the full backup strategy, what then main storage device 33 generated was the snapshot of source book.Further, the snapshot that main storage device 33 sends the snapshot of source book identifies to backup server 32, so that backup server 32 sends the first indication to main storage device 33, indicate the mapping relations of setting up between snapshot and the backup server 32 by main storage device 33 according to first, so that backup server 32 carry snapshots, then backup server 32 can utilize the data in the data application server 31 in the snapshot to recover.The signaling that backup server 32 sends the valid data bitmap of inquiring about snapshot to obtain the valid data bitmap, when realizing full backup, has been simplified the data that need backup to main storage device 33.Further backup server 32 can back up to the valid data bitmap backup storage device 34.This backup storage device 34 can be general storage medium, then utilizes snapshot functions, equally can simply realize full backup in the unmatched situation of model.
Further, behind the feedback information of storing effective data bit figure that backup server 32 can send according to the backup storage device 34 that receives, the signaling of the valid data that the valid data bitmap of sending the inquiry snapshot for main storage device 33 is corresponding is so that the valid data corresponding to valid data bitmap of main storage device 33 inquiry snapshots.Backup server 32 further backs up in the backup storage device 34 get access to valid data from main storage device 33 after.Thereby multi-level data backup so that improve backup performance, even if application server and backup server have fault, also can be from backup storage device extracted valid data, recover the fault of application server, improved backup quality.
As follows about the processing procedure to the data bitmap under the full backup:
See also Fig. 3 b, Fig. 3 b is the full dose data bitmap of the full backup that provides of the embodiment of the present application.Shown in Fig. 3 b, block is the zone bit of data block, whether the data block that zone bit is used for differentiation byte bit position correspondence changes, whether usually distinguish data block with 0 and 1 changes, in the present embodiment, fast for the data that change, the mark position 1 under the byte bit position that this data block is corresponding does not have the block mark position 1 of byte bit position correspondence corresponding to the data block that changes.Shown in Fig. 3 b, the bit position is labeled as the mark position 1 of 2 data block, and the bit position is labeled as the mark position 1 of 11 data block.Further, can obtain the valid data bitmap according to the data bitmap of importance sign, can back up for the data bitmap that does not have importance, perhaps set the priority of Backup Data bitmap according to importance, for the high data bitmap of importance, can extract in advance, be sent to backup server 32 by main storage device 33, after the high data bitmap of importance backs up successfully, back up at extraction time important data bitmap.Concrete backup form is not subjected to the restriction of present embodiment.
Receive the backup indication of the triggering backup policy that backup server 32 sends by main storage device 33 after, process through snapping technique, send the data of backup to backup server 32 and backup storage device 34, there is not the participation of application server 31 in the backup procedure, avoided having influence on by application server 31 running client backup softwares or disk mirroring functional software Backup Data the service feature of application server 31 self, when having realized application server 31 normal operation, the function of high-level efficiency Backup Data, namely Backup Data function and application server 31 operation business softwares do not interfere with each other.
See also Fig. 4, wherein, Fig. 4 is the process flow diagram of a kind of data back up method of providing of the embodiment of the present application three.
The data back up method that present embodiment provides is to describe with the angle of the main storage device under the incremental backup, and as shown in Figure 4, the data back up method that present embodiment provides comprises:
S411, main storage device receive backup server according to Preset Time, the backup indication that intermittent sends, and the backup indication is used to indicate the main storage device generating snapshot.Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data.Carry out incremental backup and be based on the snapshot that intermittent is obtained, draw the variance data bitmap between snapshot, then back up variance data bitmap or variance data corresponding to variance data bitmap.Thereby Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data.
S412, main storage device are according to backup indication generating snapshot.
The snapshot that S413, main storage device send snapshot identifies to backup server, so that backup server sends the first indication to main storage device.
The first indication is used to indicate main storage device and sets up mapping relations between snapshot and the backup server.
S414, main storage device receive the first indication.
S415, main storage device are indicated the mapping relations of setting up between snapshot and the backup server according to first, so that backup server carry snapshot.
The signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when S416, main storage device receive this Backup Data of inquiry that backup server sends.
Optionally, in other embodiments, can omit step S414 and step S415, namely backup server need not send the first indication to main storage device, and main storage device also need not receive the first indication, need not to set up the mapping relations between snapshot and the backup server.The follow-up backup-step of signaling execution of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot in the time of only need receiving this Backup Data of inquiry that backup server sends.
Inquire about twice variance data bitmap between snapshot and be in order to carry out incremental backup, the strategy of incremental backup namely is that variance data bitmap or variance data between snapshot are backed up.If recover the data under the incremental backup strategy, then obtain a variance data front snapshot corresponding with write operation position, variance data place data and, be recover data values.
Variance data bitmap between the snapshot the when snapshot the when signaling of the variance data bitmap between the snapshot during S417, the main storage device snapshot during according to this Backup Data of an inquiry front Backup Data adjacent with this Backup Data is inquired about this Backup Data and a front Backup Data adjacent with this Backup Data.
Variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when S418, main storage device send this Backup Data is to backup server, so that the variance data bitmap between the snapshot the during snapshot of backup server when backing up this a Backup Data front Backup Data adjacent with this Backup Data is to backup storage device.
The signaling of the variance data that the inquiry variance data bitmap that S419, main storage device reception backup server send is corresponding.
S420, main storage device are inquired about variance data according to the signaling of variance data corresponding to inquiry variance data bitmap.
S421, main storage device send variance data to backup server, so that backup server backup variance data is to backup storage device.So that backup server further backs up valid data to backup storage device, multi-level data backup, so that improve backup performance, even if application server and backup server have fault, also can from backup storage device, extract variance data or variance data bitmap, recover the fault of application server, improved backup quality.
The data back up method that present embodiment provides is the realization of incremental backup strategy, be after main storage device receives the backup indication of backup server transmission triggering backup policy, variance data bitmap between the snapshot that main storage device inquiry main storage device intermittent generates, back up this variance data bitmap to backup storage device by backup server, there is not the participation of application server in the backup procedure, avoided having influence on by application server running client backup software or disk mirroring functional software Backup Data the service feature of application server self, when having realized the normal operation of application server, the function of high-level efficiency Backup Data, i.e. Backup Data function and application server operation business software does not interfere with each other.
Particularly, variance data bitmap between the snapshot when snapshot when sending this Backup Data that inquires by main storage device and a front Backup Data adjacent with this Backup Data is to backup server, so that variance data corresponding to the variance data bitmap of the snapshot when backup server sends twice adjacent Backup Data or this variance data bitmap is to backup storage device, make backup storage device only back up the data of there are differences, save the storage space of backup storage device, further promoted backup efficient.
As a kind of optional embodiment, the data back up method that present embodiment provides also comprises: main storage device receives the second indication that backup server sends, and the second indication is used to indicate the mapping relations between main storage device releasing backup server and snapshot;
Main storage device is removed the mapping relations between backup server and snapshot;
As a kind of optional embodiment, the data back up method that present embodiment provides also comprises:
Main storage device receives the 3rd indication that backup server sends, and the 3rd indication is used to indicate the snapshot when deleting a front Backup Data adjacent with this Backup Data;
Snapshot when main storage device is deleted a front Backup Data adjacent with this Backup Data.
See also Fig. 5, Fig. 5 is the process flow diagram of a kind of data back up method of providing of the embodiment of the present application four.
The data back up method that present embodiment provides is to describe with the angle of the backup server in the incremental backup situation, and as shown in Figure 5, the data back up method that present embodiment provides comprises:
S511, backup server are according to Preset Time, and intermittent transmission backup indication is to main storage device, so that main storage device is indicated generating snapshot according to backup, by the main storage device generating snapshot, and the snapshot of transmission snapshot identifies to backup server.Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data.Wherein, the snapshot the when snapshot during this Backup Data and a front Backup Data adjacent with this Backup Data be by main storage device according to Preset Time, intermittent generates.
S512, backup server receive the snapshot sign of the snapshot of main storage device transmission.
S513, backup server send the first indication to main storage device, so that main storage device is indicated the mapping relations of setting up between snapshot and the backup server according to first.
S514, backup server are according to mapping relations carry snapshot.
The signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when S515, backup server send this Backup Data of inquiry is to main storage device so that main storage device when inquiring about this Backup Data snapshot and the variance data bitmap between the snapshot during a front Backup Data adjacent with this Backup Data.
Optionally, in other embodiments, can omit step S513 and step S514, namely backup server need not send the first indication to main storage device, and main storage device need not to set up the mapping relations between snapshot and the backup server.It is the snapshot of the backup server data that when back-up processing, can need to back up without carry, the signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot during this Backup Data of inquiry of only needing to send according to the snapshot sign that receives the snapshot that main storage device sends is to main storage device, to carry out follow-up backup-step.
Making main storage device inquire about twice variance data bitmap between snapshot is in order to carry out incremental backup, and the strategy of incremental backup namely is that variance data bitmap or variance data between snapshot are backed up.If recover the data under the incremental backup strategy, then obtain a variance data front snapshot corresponding with write operation position, variance data place data and, be recover data values.
Variance data bitmap between the snapshot the when snapshot when S516, backup server receive this Backup Data and a front Backup Data adjacent with this Backup Data.
Variance data bitmap between the snapshot the when snapshot when S517, backup server back up this Backup Data and a front Backup Data adjacent with this Backup Data is to backup storage device.
S518, backup server receive the feedback information that backs up the variance data bitmap that backup storage device sends.
S519, backup server send the signaling of variance data corresponding to inquiry variance data bitmap to main storage device, so that variance data corresponding to main storage device inquiry variance data bitmap.
S520, backup server receive the variance data that main storage device sends.
S521, backup server backup variance data are to backup storage device.Backup server further backs up valid data to backup storage device, multi-level data backup, so that improve backup performance, even if application server and backup server have fault, also can from backup storage device, extract variance data or variance data bitmap, recover the fault of application server, improved backup quality.
S522, backup server receive the feedback information that backs up variance data that backup storage device sends.
The data back up method that present embodiment provides, send the backup indication to main storage device by backup server, so that the variance data bitmap between the snapshot that main storage device inquiry main storage device intermittent generates and send to backup server after, back up this variance data bitmap to backup storage device by backup server.There is not the participation of application server in the backup procedure, avoided having influence on by application server running client backup software or disk mirroring functional software Backup Data the service feature of application server self, when having realized the normal operation of application server, the function of high-level efficiency Backup Data, i.e. Backup Data function and application server operation business software does not interfere with each other.
Particularly, variance data bitmap between the snapshot when snapshot when receiving this Backup Data that main storage device inquires by backup server and a front Backup Data adjacent with this Backup Data is to backup server, so that variance data corresponding to the variance data bitmap of the snapshot when backup server sends twice adjacent Backup Data or this variance data bitmap is to backup storage device, make backup storage device only back up the data of there are differences, save the storage space of backup storage device, further promoted backup efficient.
As a kind of optional embodiment, the data back up method that present embodiment provides also comprises:
Backup server sends the second indication to main storage device, so that main storage device is according to the mapping relations between the second indication releasing backup server and snapshot.
As a kind of optional embodiment, the data back up method that present embodiment provides also comprises:
Backup server sends the 3rd indication to main storage device, so that the snapshot of main storage device during according to the 3rd an indication deletion front Backup Data adjacent with this Backup Data.
See also Fig. 3 a, Fig. 3 a is the shared storage architecture synoptic diagram of the data back up method that provides of the embodiment of the present application.Shown in Fig. 3 a, the shared storage architecture of the data back up method that present embodiment provides based on equipment comprise: carry the application server 31, backup server 32 of application operating system, with main storage device 33 and a backup storage device 34 of snapshot functions.Wherein, the application server 31 that carries application operating system can carry out business processing, can generate the snapshot of the operation that application server writes data with the main storage device 33 of snapshot functions.Setting up between application server 31 and the main storage device 33 has the communication connection relation, and the source book by application server 31 carry main storage devices is with the data of storage application server 31.Setting up between backup server 32 and the main storage device 33 has the communication connection relation, with the snapshot of carry main storage device 33 generations.And foundation has the communication connection relation between backup server 32 and the backup storage device 34, backs up in the backup storage device 34 with valid data or the valid data bitmap that backup server 32 is obtained.When standby system is carried out the incremental backup strategy, then main storage device 33 generates be according to backup server intermittent send backup indication generating snapshot.Further, the snapshot of the snapshot when main storage device 33 sends current backup identifies to backup server 32, so that backup server 32 sends the first indication to main storage device 33, indicate the mapping relations of setting up between snapshot and the backup server 32 by main storage device 33 according to first, snapshot is mounted on the backup server 32 according to these mapping relations by backup server 32.Backup server 32 can be indicated the snapshot of adjacent twice Backup Data of main storage device 33 contrasts, obtain the variance data bitmap between these two snapshots, thereby backup server 32 can be according to the snapshot of a front Backup Data and the full dose data bitmap of the data block after the acquisition of the variance data bitmap between this two snapshots variation.Perhaps running in the situation of fault, the full dose data bitmap that can obtain through snapshot according to back up for the first time the time, and several variance data bitmaps that backup obtains through several times after for the first time backup return to the full dose data bitmap of fault before generating.Wherein, in the backup procedure, the signaling of the variance data bitmap between the snapshot the when snapshot when backup server 32 sends this Backup Data of inquiry and a front Backup Data adjacent with this Backup Data is to main storage device 33, to obtain the variance data bitmap, when realizing incremental backup, the data that need backup have been simplified.Further backup server 32 can back up to the variance data bitmap backup storage device 34.This backup storage device 34 can be general storage medium, then utilizes snapshot functions, equally can simply realize incremental backup in the unmatched situation of model.
Further, behind the feedback information of the store discrepancy data bitmap that backup server 32 can send according to the backup storage device 34 that receives, the signaling of sending variance data corresponding to inquiry variance data bitmap for main storage device 33 is so that main storage device 33 inquiry variance data.Backup server 32 further backs up in the backup storage device 34 get access to variance data from main storage device 33 after.Thereby multi-level data backup, so that improve backup performance, even if application server and backup server have fault, also can from backup storage device, extract variance data or difference bitmap, recover data, avoid having improved backup quality because the problem that the fault of application server causes business processing not carry out continuously occurs.
As follows about the processing procedure to the variance data bitmap under the incremental backup:
See also Fig. 3 c, 3d, Fig. 3 e, 3f, Fig. 3 g, Fig. 3 c is data bit figure synoptic diagram corresponding to snapshot that obtains when backing up the embodiment of the present application provides for the first time; Fig. 3 d is the variance data bitmap synoptic diagram that obtains when backing up the embodiment of the present application provides for the first time; Fig. 3 e is the variance data bitmap synoptic diagram that obtains when backing up the embodiment of the present application provides for the second time; Fig. 3 f be the embodiment of the present application provide back up for the third time the time variance data bitmap synoptic diagram that obtains; Fig. 3 g be the embodiment of the present application provide return to full dose data bit figure synoptic diagram when backing up for the third time.Wherein, in each variance data bitmap, block is the zone bit of data block, whether whether the data block that zone bit is used for differentiation byte bit position correspondence changes, usually distinguish data block with 0 and 1 and change, in the present embodiment, fast for the data that change, mark position 1 under the byte bit position that this data block is corresponding is for the data block that does not have to change, the corresponding block mark position, byte bit position 1 that it is corresponding.The value of each zone bit is 0 in the initialization data bitmap, and for the snapshot first time that carries out after the initialization, shown in Fig. 3 c, the mark position that the bit position is labeled as 2 data block is 1, and the bit position is labeled as the mark position 1 of 11 data block.Shown in Fig. 3 d, the mark position that the bit position is labeled as 2 data block is 1, shows that this bit position is labeled as 2 data block and changes, and the bit position is labeled as the mark position 1 of 11 data block, shows that this bit position is labeled as 11 data block and changes.Because the value of each zone bit is 0 in the initialization data bitmap, the variance data bitmap that the data bitmap that the snapshot that obtains when then backing up for the first time is corresponding obtains when backing up with the first time is identical.Shown in Fig. 3 e, the mark position that the bit position is labeled as 4 data block is 1, shows that this bit position is labeled as 4 data block and changes.Shown in Fig. 3 f, the mark position that the bit position is labeled as 1 data block is 1, shows that this bit position is labeled as 4 data block and changes, and the mark position that the bit position is labeled as 2 data block is 1, shows that this bit position is labeled as 2 data block and changes.
Data bitmap, the variance data bitmap that obtains when backing up for the second time that the snapshot that then obtains when backing up for the first time is corresponding and the variance data bitmap that obtains when backing up for the third time, the zone bit that merges the corresponding data block in identical bit position, be to have at least one to put 1 zone bit in the identical bit position in each data bitmap, the mark position 1 of this bit position correspondence then.The full dose data bitmap of the snapshot in the time of can obtaining to back up for the third time after then merging is namely shown in Fig. 3 g.
As optionally, can be when each Backup Data, full dose data bitmap corresponding to snapshot when the variance data bitmap that obtains according to this Backup Data and last Backup Data obtains the full dose data bitmap of this Backup Data, back up successively, finally obtain full dose data bitmap, in order to obtain the full dose data according to full dose data bitmap, and be stored to backup storage device, in order to when recovering data, directly from backup storage device, obtain.
See also Fig. 6, Fig. 6 is the structural representation of a kind of memory device of providing of the embodiment of the present application five.The memory device that present embodiment provides, it is the execution carrier that a kind of data back up method of describing with the angle of main storage device that provides based on embodiment one is provided, it is a kind of main storage device, a kind of memory device as shown in Figure 6 comprises: receiving element 61, snapshot unit 62, transmitting element 63 and processing unit 64.
Wherein, receiving element 61 is used for receiving the backup indication that backup server sends, and wherein, the backup indication is used to indicate the snapshot that memory device generates source book.
Snapshot unit 62 is for the snapshot that generates source book.
Transmitting element 63, the snapshot that is used for the transmission snapshot identifies to backup server.
Receiving element 61 also be used for to receive the signaling of the valid data bitmap of the inquiry snapshot that backup server sends.
Processing unit 64 is used for the valid data bitmap according to the signaling inquiry snapshot of the valid data bitmap of inquiring about snapshot.
Transmitting element 63 also is used for sending the valid data bitmap of snapshot to backup server, so that the valid data bitmap of backup server backup snapshots is to backup storage device.
Receiving element 61 also be used for to receive the signaling of valid data corresponding to the valid data bitmap of the inquiry snapshot that backup server sends.
Processing unit 64 also is used for the signaling inquiry valid data according to valid data corresponding to the valid data bitmap of inquiry snapshot.
Transmitting element 63 also is used for sending valid data to backup server, so that backup server backup valid data are to backup storage device.
After present embodiment receives the backup indication of backup server transmission by receiving element 61, by the snapshot of snapshot unit 62 generation source books, in order to carry out full backup.The snapshot that sends snapshot by transmitting element 63 identifies to backup server, in order to further notified the valid data bitmap of processing unit 64 these snapshots of inquiry of main storage device by backup server, receive the valid data bitmap that transmitting element 63 sends by backup server, in order to back up this valid data bitmap to backup storage device.And, the signaling inquiry valid data of the valid data that the valid data bitmap of the inquiry snapshot that further receives according to receiving element 61 by processing unit 64 is corresponding, send valid data to backup server by transmitting element 63, so that backup server backup valid data are to backup storage device.By carrying out the full backup strategy, valid data to source book back up, reduced Backup Data, and do not need the extra running client software of application server to back up, only between backup server and main storage device, set up and communicate by letter, obtain the valid data bitmap, by the back-up processing between backup server and the backup storage device, finish the full backup of data.
As a kind of optional embodiment, this memory device also comprises:
Creating unit is used for creating source book.
Map unit is used for the mapping source book to application server so that application server carry source book, with the data of storage application server to source book.
As a kind of optional embodiment, receiving element also is used for receiving the first indication.The first indication is used to indicate main storage device and sets up mapping relations between snapshot and the backup server.
Processing unit is also for the mapping relations of setting up according to the first indication between snapshot and the backup server, so that backup server carry snapshot.
As a kind of optional embodiment, receiving element, also for the second indication that receives the backup server transmission, the second indication is used to indicate the mapping relations between main storage device releasing backup server and snapshot;
Processing unit also is used for removing the mapping relations between backup server and snapshot.
As a kind of optional embodiment, receiving element also is used for receiving the 3rd indication that backup server sends, and the 3rd indication is used to indicate the snapshot of main storage device deletion source book;
Processing unit is also for the snapshot of deleting source book.
See also Fig. 7, Fig. 7 is the another kind of memory device structural representation that the embodiment of the present application five provides.As shown in Figure 7, the memory device that present embodiment provides, the execution carrier of a kind of data back up method of describing with the angle of main storage device that is based on that embodiment one provides, comprise: input media 71, output unit 72, storer 73 and processor 74, wherein, storage batch processing code in the storer 73, and processor 74 is used for calling the program code that storer is stored, operation below being used for carrying out:
Receive the backup indication that backup server sends.Wherein, the backup indication is used to indicate the snapshot that main storage device generates source book.
Generate the snapshot of source book.
The snapshot that sends snapshot identifies to backup server;
The signaling of the valid data bitmap of the inquiry snapshot that the reception backup server sends.
Inquire about the valid data bitmap of snapshot according to the signaling of the valid data bitmap of inquiring about snapshot.
Send the valid data bitmap of snapshot to backup server, so that the valid data bitmap of backup server backup snapshots is to backup storage device.Wherein, get access to the valid data bitmap by backup server, then can be recovered according to the valid data in the valid data application server in the valid data bitmap by backup server.Then without the backup invalidation data, reduce the data volume of backup, promoted backup speed.
The signaling of the valid data that the valid data bitmap of the inquiry snapshot that the reception backup server sends is corresponding.
Signaling inquiry valid data according to valid data corresponding to the valid data bitmap of inquiry snapshot.
Send valid data to backup server, so that backup server backup valid data are to backup storage device.
The present embodiment mainly 74 control output units of the processor by main storage device sends the valid data bitmap of snapshot of the source book that inquires to backup server, so that backup server sends the valid data bitmap to backup storage device, make backup storage device can back up effective bitmap, so that standby system further obtains active data, and then without the data of backup invalidation, simplified Backup Data.
As a kind of optional embodiment, this processor is carried out before the operation of the snapshot that generates source book, also is used for carrying out following step:
Create source book;
The mapping source book is to application server so that application server carry source book, with the data of storage application server to source book.
As a kind of optional embodiment, this processor is carried out the snapshot that sends snapshot and is identified to the step of backup server, and before the step of the signaling of the valid data bitmap of the inquiry snapshot of execution reception backup server transmission, also be used for carrying out following step:
Receive the first indication that backup server sends, the first indication is used to indicate main storage device and sets up mapping relations between snapshot and the backup server;
Set up mapping relations between snapshot and the backup server according to the first indication, so that backup server carry snapshot.
As a kind of optional embodiment, this processor also is used for carrying out following step:
Receive the second indication that backup server sends.The second indication is used to indicate the mapping relations between main storage device releasing backup server and snapshot.
Remove the mapping relations between backup server and snapshot.
As a kind of optional embodiment, this processor also is used for carrying out following step:
Receive the 3rd indication that backup server sends.The 3rd indication is used to indicate the snapshot of main storage device deletion source book.
The snapshot of deletion source book.
See also Fig. 8, Fig. 8 is a kind of server architecture synoptic diagram that the embodiment of the present application six provides.The server that present embodiment provides is based on the execution carrier of a kind of data back up method that embodiment two provides, i.e. a kind of backup server, and backup server as shown in Figure 8 comprises: transmitting element 81, receiving element 82, backup units 83.
Wherein, transmitting element 81 is used for sending the backup indication to main storage device, generates the snapshot of source book to indicate main storage device, and the snapshot that is sent snapshot by main storage device identifies to backup server;
Receiving element 82 is used for receiving the snapshot sign that main storage device sends;
Transmitting element 81, the signaling that also is used for sending the valid data bitmap of inquiring about snapshot are to main storage device, so that main storage device is according to the valid data bitmap of the signaling inquiry snapshot of the valid data bitmap of inquiry snapshot;
Receiving element 82 also be used for to receive the valid data bitmap of the snapshot that main storage device sends;
Backup units 83 is used for the valid data bitmap of backup snapshots to backup storage device;
Receiving element 82 also be used for to receive the feedback information of the valid data bitmap of the backup snapshots that backup storage device sends;
Transmitting element 81, also be used for sending the signaling of valid data corresponding to the valid data bitmap of inquiry snapshot to main storage device, so that main storage device is according to the signaling inquiry valid data of valid data corresponding to the valid data bitmap of inquiry snapshot according to the feedback information of the valid data bitmap of backup snapshots;
Receiving element 82 also is used for receiving the valid data that main storage device sends;
Backup units 83 also is used for the backup valid data to backup storage device.
Receiving element 82 also be used for to receive the feedback information of the valid data of the backup snapshots that backup storage device sends.
The server that present embodiment provides, it is the backup server of a Backup Data, send the backup indication to main storage device by transmitting element 81, generate the snapshot of source book with the indication main storage device, sent the snapshot sign of snapshot by main storage device, the snapshot sign of the snapshot of the source book that receiving element 82 reception main storage devices send, and then the signaling of valid data bitmap that sends the inquiry snapshots by transmitting element 81 is to main storage device, so that main storage device is according to the valid data bitmap of the signaling inquiry snapshot of the valid data bitmap of inquiry snapshot, in order to receive the valid data bitmaps by receiving element 82, and then the valid data bitmap by backup units 83 backup snapshots is to backup storage device.When reaching full backup, without the data of backup invalidation, simplified Backup Data.And further back up the valid data bitmap to backup storage device by backup units, realized multi-level data backup, the perfect performance of data backup has been done sufficient preparation for better recovering the data writing operation of application server when the normal operation.
As a kind of optional embodiment, transmitting element also is used for sending the first indication to main storage device, so that main storage device is indicated the mapping relations of setting up between snapshot and the backup server according to first;
This server also comprises: processing unit is used for the mapping relations carry snapshot that obtains according to receiving element.
As a kind of optional embodiment, transmitting element also is used for sending the second indication to main storage device, so that main storage device is removed the mapping relations between backup server and snapshot.
As a kind of optional embodiment, transmitting element also is used for sending the 3rd indication to main storage device, so that the snapshot of main storage device deletion source book.
See also Fig. 9, Fig. 9 is the another kind of server architecture synoptic diagram that the embodiment of the present application six provides.The server that present embodiment provides, be based on the execution carrier of a kind of data back up method that embodiment two provides, it is a kind of backup server, backup server as shown in Figure 9 comprises: input media 91, output unit 92, storer 93 and processor 94, wherein, storage batch processing code in the storer 93, and processor 94 is used for calling the program code that storer is stored, operation below being used for carrying out:
Send the backup indication to main storage device, with the snapshot of indication main storage device generation source book, the snapshot that is sent snapshot by main storage device identifies to backup server.
Receive the snapshot sign that main storage device sends.
Send the signaling of the valid data bitmap of inquiring about snapshot to main storage device, so that main storage device is according to the valid data bitmap of the signaling inquiry snapshot of the valid data bitmap of inquiry snapshot.
Receive the valid data bitmap of the snapshot of main storage device transmission.
The valid data bitmap of backup snapshots is to backup storage device.
The feedback information of the valid data bitmap of the backup snapshots that the reception backup storage device sends.
Send the signaling of valid data corresponding to the valid data bitmap of inquiry snapshot to main storage device, so that main storage device is according to the signaling inquiry valid data of valid data corresponding to the valid data bitmap of inquiry snapshot according to the feedback information of the valid data bitmap of backup snapshots.
Receive the valid data that main storage device sends.
The backup valid data are to backup storage device.
The feedback information of the valid data of the backup snapshots that the reception backup storage device sends.
Present embodiment is carried out associative operation by processor 94, to send the backup indication to main storage device, generate the snapshot of source book with the indication main storage device, the snapshot sign of the snapshot of the source book that the reception main storage device sends, send the signaling of the valid data bitmap of inquiring about snapshot to main storage device, main storage device is inquired about and the valid data bitmap of the snapshot of transmission to receive, so that the valid data bitmap of backup snapshots is to backup storage device.By setting up the back-up processing correspondence of snapshot functions between control backup server and the main storage device, obtain the valid data bitmap of source book, the client software that does not need application server loading and operation to have backup functionality just can be finished backup.And realize the concrete method of obtaining the valid data bitmap that adopts of full backup, then simplified the backup of invalid data, improved backup speed.And further obtain valid data bitmap in the backup server by backup storage device, realized multi-level data backup, the perfect performance of data backup has been done sufficient preparation for better recovering the data writing operation of application server when the normal operation.
As a kind of optional embodiment, this processor is carried out after the step of the snapshot sign that receives the main storage device transmission, and carries out before the step of signaling to main storage device of the valid data bitmap that sends the inquiry snapshot, also for carrying out following operation:
Send the first indication to main storage device, so that main storage device is indicated the mapping relations of setting up between snapshot and the backup server according to first.
According to the mapping relations between snapshot and the backup server, the carry snapshot.
As a kind of optional embodiment, this processor also is used for carrying out following operation:
Send the second indication to main storage device, so that main storage device is removed the mapping relations between backup server and snapshot.
As a kind of optional embodiment, this processor also is used for carrying out following operation:
Send the 3rd indication to main storage device, so that the snapshot of main storage device deletion source book.
See also Figure 10, Figure 10 is the structural representation of a kind of memory device of providing of the embodiment of the present application seven.As shown in figure 10, the memory device that present embodiment provides is the execution carrier that a kind of data back up method that provides based on embodiment three is provided, and is a main storage device, comprising: receiving element 101, snapshot unit 102, transmitting element 103 and processing unit 104.
Wherein, receiving element 101 is used for receiving backup server according to Preset Time, the backup indication that intermittent sends, and the backup indication is used to indicate the memory device generating snapshot.Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data.
Snapshot unit 102 is used for according to backup indication generating snapshot.
Transmitting element 103, the snapshot that is used for the transmission snapshot identifies to backup server.
Receiving element 101, the signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when also be used for receiving this Backup Data of inquiry that backup server sends.
Processing unit 104, the variance data bitmap between the snapshot the when snapshot the when signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when being used for according to this Backup Data of inquiry is inquired about this Backup Data and a front Backup Data adjacent with this Backup Data.
Transmitting element 103, variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when also be used for sending this Backup Data is to backup server, so that the variance data bitmap between the snapshot the during snapshot of backup server when backing up this a Backup Data front Backup Data adjacent with this Backup Data is to backup storage device.
Receiving element 101, the signaling of the variance data that the inquiry variance data bitmap that also sends for the reception backup server is corresponding.
Processing unit 104 also is used for the signaling inquiry variance data according to variance data corresponding to inquiry variance data bitmap.
Transmitting element 103 also is used for sending variance data to backup server, so that backup server backup variance data is to backup storage device.
The memory device that present embodiment provides is a main storage device, in backup procedure, the backup server that receives according to receiving element 101 by snapshot unit 102 is according to Preset Time, the backup indication intermittent generating snapshot that intermittent sends, so that the snapshot that transmitting element 103 sends snapshot identifies to backup server, and the signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when receiving this Backup Data of inquiry that backup server sends by processing unit 104 according to receiving element 101, variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when inquiring about this Backup Data, after inquiring this variance data bitmap, variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when sending this Backup Data by transmitting element 103 is to backup server, so that the variance data bitmap between the snapshot the during snapshot of backup server when backing up this a Backup Data front Backup Data adjacent with this Backup Data is to backup storage device.In backup procedure, what carry out is the incremental backup strategy, trigger after the incremental backup strategy, then between backup server and this memory device, set up the communication link with snapshot communication function, need not that application server loads and client software that operation has a backup functionality just can be finished backup.Thereby can not affect the normal operation of application server, and guarantee that the normal process of application server is professional, finish online data backup simultaneously.And the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when obtaining this Backup Data, can further simplify Backup Data, reduce back up memory space, no longer be confined to adopt the backup policy of full backup to carry out the backup of data.
As a kind of optional embodiment, receiving element also is used for receiving the first indication that backup server sends.The first indication is used to indicate main storage device and sets up mapping relations between snapshot and the backup server.
Processing unit is also for the mapping relations of setting up according to the first indication between snapshot and the backup server, so that backup server carry snapshot.
As a kind of optional embodiment, receiving element, also for the second indication that receives the backup server transmission, the second indication is used to indicate the mapping relations between main storage device releasing backup server and snapshot;
Processing unit also is used for removing the mapping relations between backup server and snapshot.
As a kind of optional embodiment, receiving element, also for the 3rd indication that receives the backup server transmission, the 3rd indication is used to indicate the snapshot when deleting a front Backup Data adjacent with this Backup Data;
Processing unit, the snapshot when also being used for deleting a front Backup Data adjacent with this Backup Data.
See also Figure 11, Figure 11 is the structural representation of the another kind of memory device that provides of the embodiment of the present application seven.As shown in figure 11, the memory device that this enforcement provides is the execution carrier that a kind of data back up method that provides based on embodiment three is provided, it is a main storage device, comprise: input media 111, output unit 112, storer 113 and processor 114, wherein, storage batch processing code in the storer 113, and processor 114 is used for calling the program code that storer is stored, operation below being used for carrying out:
Receive backup server according to Preset Time, the backup indication that intermittent sends, the backup indication is used to indicate the main storage device generating snapshot, and Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data;
According to backup indication generating snapshot;
The snapshot that sends snapshot identifies to backup server;
The signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when receiving this Backup Data of inquiry that backup server sends;
Variance data bitmap between the snapshot the when snapshot the when signaling of the variance data bitmap between the snapshot during according to the snapshot of inquiry during this a Backup Data front Backup Data adjacent with this Backup Data is inquired about this Backup Data and a front Backup Data adjacent with this Backup Data;
Variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when sending this Backup Data is to backup server, so that the variance data bitmap between the snapshot the during snapshot of backup server when backing up this a Backup Data front Backup Data adjacent with this Backup Data is to backup storage device;
The signaling of the variance data that the inquiry variance data bitmap that the reception backup server sends is corresponding;
Signaling inquiry variance data according to variance data corresponding to inquiry variance data bitmap;
Send variance data to backup server, so that backup server backup variance data is to backup storage device.
The memory device that present embodiment provides is a kind of main storage device, main by processor 114 execution associative operations, with the backup indication intermittent generating snapshot of control store equipment according to interval acquiring, after the signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when receiving this Backup Data of inquiry that backup server sends, variance data bitmap between the snapshot the when snapshot when inquiring about this Backup Data and a front Backup Data adjacent with this Backup Data, and send this variance data bitmap to backup server, make backup server back up this variance data bitmap to backup storage device.In backup procedure, what carry out is the incremental backup strategy, trigger after the incremental backup strategy, then between backup server and this memory device, set up the communication link with snapshot communication function, need not that application server loads and client software that operation has a backup functionality just can be finished backup.Thereby can not affect the normal operation of application server, and guarantee that the normal process of application server is professional, finish online data backup simultaneously.And the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when obtaining this Backup Data, can further simplify Backup Data, reduce back up memory space, no longer be confined to adopt the backup policy of full backup to carry out the backup of data.
As a kind of optional embodiment, this processor is carried out the snapshot that sends snapshot and is identified to the step of backup server, and before the step of the signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when carry out receiving this Backup Data of inquiry that backup server sends, this processor is also for carrying out following operation:
Receive the first indication that backup server sends, the first indication is used to indicate main storage device and sets up mapping relations between snapshot and the backup server;
Set up mapping relations between snapshot and the backup server according to the first indication, so that backup server carry snapshot.
As a kind of optional embodiment, this processor also is used for carrying out following operation:
Receive the second indication that backup server sends, the second indication is used to indicate the mapping relations between main storage device releasing backup server and snapshot;
Remove the mapping relations between backup server and snapshot.
As a kind of optional embodiment, this processor also is used for carrying out following operation:
Receive the 3rd indication that backup server sends, the 3rd indication is used to indicate the snapshot when deleting a front Backup Data adjacent with this Backup Data;
Snapshot when deleting a front Backup Data adjacent with this Backup Data.
See also Figure 12, Figure 12 is the structural representation of a kind of server of providing of the embodiment of the present application eight.As shown in figure 12, the server that present embodiment provides is the execution carrier that a kind of data back up method that provides based on embodiment four is provided, and is a kind of backup server, comprising: transmitting element 121, receiving element 122, backup units 123.
Wherein, transmitting element 121 is used for according to Preset Time, and intermittent sends the backup indication to main storage device, so that main storage device is according to backup indication generating snapshot, by the main storage device generating snapshot, and the snapshot that sends snapshot identifies to backup server.Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data.
Receiving element 122, the snapshot that is used for the snapshot of reception main storage device transmission identifies.
Transmitting element 121, the signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when also be used for sending this Backup Data of inquiry is to main storage device so that main storage device when inquiring about this Backup Data snapshot and the variance data bitmap between the snapshot during a front Backup Data adjacent with this Backup Data.
Receiving element 122, the variance data bitmap between the snapshot the when snapshot when also being used for receiving this Backup Data and a front Backup Data adjacent with this Backup Data.
Backup units 123, the variance data bitmap between the snapshot the when snapshot when being used for this Backup Data of backup and a front Backup Data adjacent with this Backup Data is to backup storage device.
Receiving element 122 also is used for receiving the feedback information that backs up the variance data bitmap that backup storage device sends.
Transmitting element 121, the signaling that also is used for sending variance data corresponding to inquiry variance data bitmap is to main storage device, so that variance data corresponding to main storage device inquiry variance data bitmap.
Receiving element 122 also is used for receiving the variance data that main storage device sends.
Backup units 123 also is used for the backup variance data to backup storage device.
Receiving element 122 also is used for receiving the feedback information that backs up variance data that backup storage device sends.
Wherein, snapshot when the snapshot during this Backup Data and a front Backup Data adjacent with this Backup Data is generated according to the backup indication by main storage device, and Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data.
The server that present embodiment provides is a backup server, the main transmitting element 121 that passes through is according to Preset Time, intermittent sends the backup indication to main storage device, so that main storage device is according to backup indication generating snapshot, by the main storage device generating snapshot, and the snapshot that sends snapshot identifies to backup server, receive the snapshot sign of the snapshot of main storage device transmission by receiving element 122, so that the signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when sending this Backup Data of inquiry by transmitting element 121 is to main storage device, so that main storage device when inquiring about this Backup Data snapshot and the variance data bitmap between the snapshot during a front Backup Data adjacent with this Backup Data, and by this variance data bitmap that receiving element 122 reception main storage devices send, back up these variance data bitmaps to backup storage device to pass through backup units 123.In backup procedure, what carry out is the incremental backup strategy, trigger after the incremental backup strategy, then between backup server and this memory device, set up the communication link with snapshot communication function, need not that application server loads and client software that operation has a backup functionality just can be finished backup.Thereby can not affect the normal operation of application server, and guarantee that the normal process of application server is professional, finish online data backup simultaneously.And the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when obtaining this Backup Data, can further simplify Backup Data, reduce back up memory space, no longer be confined to adopt the backup policy of full backup to carry out the backup of data.
As a kind of optional embodiment, transmitting element also is used for sending the first indication to main storage device, so that main storage device is indicated the mapping relations of setting up between snapshot and the backup server according to first.
Processing unit is used for according to the mapping relations carry snapshot that gets access to.
As a kind of optional embodiment, transmitting element also is used for sending the second indication to main storage device, so that main storage device is according to the mapping relations between the second indication releasing backup server and snapshot.
As a kind of optional embodiment, transmitting element also be used for to send the 3rd indication to main storage device, so that the snapshot of main storage device during according to the 3rd an indication deletion front Backup Data adjacent with this Backup Data.
See also Figure 13, Figure 13 is the structural representation of the another kind of server that provides of the embodiment of the present application eight.As shown in figure 13, the server that present embodiment provides is the execution carrier that a kind of data back up method that provides based on embodiment four is provided, be a kind of backup server, comprise: input media 131, output unit 132, storer 133 and processor 134, wherein, storage batch processing code in the storer 133, and processor 134 is used for carrying out following the operation for the program code that calls storer 133 storages:
According to Preset Time, intermittent transmission backup indication is to main storage device, so that main storage device is indicated generating snapshot according to backup, by the main storage device generating snapshot, and the snapshot of transmission snapshot identifies to backup server.Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data.
Receive the snapshot sign of the snapshot of main storage device transmission.
The signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when sending this Backup Data of inquiry is to main storage device so that main storage device when inquiring about this Backup Data snapshot and the variance data bitmap between the snapshot during a front Backup Data adjacent with this Backup Data.
Variance data bitmap between the snapshot the when snapshot when receiving this Backup Data and a front Backup Data adjacent with this Backup Data.
Variance data bitmap between the snapshot the when snapshot when backing up this Backup Data and a front Backup Data adjacent with this Backup Data is to backup storage device.
Receive the feedback information that backs up the variance data bitmap that backup storage device sends.
Send the signaling of variance data corresponding to inquiry variance data bitmap to main storage device, so that variance data corresponding to main storage device inquiry variance data bitmap.
Receive the variance data that main storage device sends.
The backup variance data is to backup storage device.
Receive the feedback information that backs up variance data that backup storage device sends.
Wherein, snapshot when the snapshot during this Backup Data and a front Backup Data adjacent with this Backup Data is generated according to the backup indication by main storage device, the backup indication is sent by the backup server interval, and Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data.
The server that present embodiment provides is a backup server, main by processor 134 execution associative operations, with according to Preset Time, intermittent sends the backup indication to main storage device, so that main storage device is according to backup indication generating snapshot, by the main storage device generating snapshot, and the snapshot that sends snapshot identifies to backup server, the signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when then sending this Backup Data of inquiry is to main storage device, so that behind the snapshot and the variance data bitmap between the snapshot during a front Backup Data adjacent with this Backup Data of main storage device when inquiring about this Backup Data, receive the variance data bitmap that main storage device sends, back up this variance data bitmap to backup storage device.In backup procedure, what carry out is the incremental backup strategy, trigger after the incremental backup strategy, then between backup server and this memory device, set up the communication link with snapshot communication function, need not that application server loads and client software that operation has a backup functionality just can be finished backup.Thereby can not affect the normal operation of application server, and guarantee that the normal process of application server is professional, finish online data backup simultaneously.And the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when obtaining this Backup Data, can further simplify Backup Data, reduce back up memory space, no longer be confined to adopt the backup policy of full backup to carry out the backup of data.
As a kind of optional embodiment, after the step that the snapshot that this processor execution receives the snapshot of main storage device transmission identifies, and the signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when carry out sending this Backup Data of inquiry is to the step of main storage device, and this processor is also for carrying out following operation:
Send the first indication to main storage device, so that main storage device is indicated the mapping relations of setting up between snapshot and the backup server according to first;
According to mapping relations carry snapshot.
As a kind of optional embodiment, this processor also is used for carrying out following operation:
Send the second indication to main storage device, so that main storage device is according to the mapping relations between the second indication releasing backup server and snapshot.
As a kind of optional embodiment, this processor also is used for carrying out following operation:
Send the 3rd indication to main storage device, so that the snapshot of main storage device during according to the 3rd an indication deletion front Backup Data adjacent with this Backup Data.
See also Figure 14, Figure 14 is the structural representation of a kind of data backup system of providing of the embodiment of the present application nine.As shown in figure 14, the data backup system that present embodiment provides comprises a kind of backup server that a kind of main storage device that embodiment five provides and embodiment six provide, and comprises and also comprise application server:
Backup storage device 141 is used for the valid data bitmap of the snapshot of the source book that the storage and backup service device sends.
Backup storage device 141, also be used for sending backup snapshots the valid data bitmap feed back to backup server;
Backup storage device 141 also is used for the valid data corresponding with the valid data bitmap that the storage and backup service device sends.
Backup storage device 141 also be used for to send the backup server that feeds back to of the valid data of having stored snapshot.
The data backup system that present embodiment provides, send the valid data bitmap of snapshot of the source book inquire by main storage device to backup server, so that backup server sends the valid data bitmap or further sends valid data corresponding to valid data bitmap to backup storage device, make backup storage device can back up active data, and then without the data of backup invalidation, simplified Backup Data.Secondly, in backup procedure, what carry out is the full backup strategy, trigger after the full backup strategy, then between backup server and this memory device, set up the communication link with snapshot communication function, need not that application server loads and client software that operation has a backup functionality just can be finished backup.Thereby can not affect the normal operation of application server, and guarantee that the normal process of application server is professional, finish online data backup simultaneously.And by obtaining the valid data bitmap, can further simplify Backup Data, reduce back up memory space.
See also Figure 15, Figure 15 is the structural representation of a kind of data backup system of providing of the embodiment of the present application ten.As shown in figure 15, the data backup system that present embodiment provides comprises a kind of backup server that a kind of main storage device that embodiment seven provides and embodiment eight provide, and also comprises:
Backup storage device 151, the variance data bitmap between the snapshot the when snapshot when being used for this Backup Data of storage and a front Backup Data adjacent with this Backup Data.
Backup storage device 151 also is used for sending the backup server that feeds back to that has backed up the variance data bitmap.
Backup storage device 151 also is used for the storage variance data corresponding with the variance data bitmap to backup storage device.
Backup storage device 151 also is used for sending the backup server that feeds back to of store discrepancy data.
The data backup system that present embodiment provides, variance data bitmap between the snapshot when snapshot when sending this Backup Data that inquires by main storage device and a front Backup Data adjacent with this Backup Data is to backup server, so that variance data corresponding to the variance data bitmap of the snapshot when backup server sends twice adjacent Backup Data or this variance data bitmap makes backup storage device only back up the data of there are differences to backup storage device.In backup procedure, what carry out is the incremental backup strategy, trigger after the incremental backup strategy, then between backup server and this memory device, set up the communication link with snapshot communication function, need not that application server loads and client software that operation has a backup functionality just can be finished backup.Thereby can not affect the normal operation of application server, and guarantee that the normal process of application server is professional, finish online data backup simultaneously.And the variance data bitmap between the snapshot during the front Backup Data adjacent with this Backup Data of the snapshot when obtaining this Backup Data, can further simplify Backup Data, reduce back up memory space, no longer be confined to adopt the backup policy of full backup to carry out the backup of data.
To sum up statement, the data back up method that present embodiment provides and relevant device, by different backup policy is set in backup server, so that after backup server receives the signaling that triggers backup policy, and process through snapping technique between main storage device, send the data of backup to backup storage device, there is not the participation of application server in the backup procedure, avoided having influence on by application server running client backup software or disk mirroring functional software Backup Data the service feature of application server self, when having realized the normal operation of application server, the function of high-level efficiency Backup Data, i.e. Backup Data function and application server operation business software does not interfere with each other.
Send the valid data bitmap of snapshot of the source book inquire to backup server by main storage device particularly, so that backup server sends the valid data bitmap or further sends valid data corresponding to valid data bitmap to backup storage device, make backup storage device can back up active data, and then without the data of backup invalidation, simplified Backup Data.
Perhaps, variance data bitmap between the snapshot when snapshot when sending this Backup Data that inquires by main storage device and a front Backup Data adjacent with this Backup Data is to backup server, so that variance data corresponding to the variance data bitmap of the snapshot when backup server sends twice adjacent Backup Data or this variance data bitmap is to backup storage device, make backup storage device only back up the data of there are differences, save the storage space of backup storage device, further promoted backup efficient.
By full backup or incremental backup so that the selectivity of backup scenario is more, and the performance of application server is without any impact, and by backup server valid data, effective bitmap or variance data variance data bitmap are stored in the file, can use the model that is different from primary storage, namely support the isomery storage, strengthened the general applicability of each equipment in the standby system.
In several embodiment that the application provides, should be understood that disclosed equipment and method can realize by another way.For example, apparatus embodiments described above only is schematic, for example, the division of module or unit, only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or module can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.In addition, the shown or coupling each other discussed or direct-coupling or communication connection can be indirect coupling or the communication connections by some interfaces, device, module or unit, also can be electric, machinery or other form connect.
Module or unit as the separating component explanation can or can not be physically to separate also, the parts that show as module or unit can be or also can not be physical module or unit, namely can be positioned at a place, perhaps also can be distributed on a plurality of mixed-media network modules mixed-medias or the unit.Can select according to the actual needs wherein some or all of module or the unit purpose that realizes embodiment of the invention scheme.
In addition, each functional module in each embodiment of the present invention or unit can be integrated in a processing module or the unit, also can be that the independent physics in modules or unit exists, also can be that two or more modules or unit are integrated in a module or the unit.The form that above-mentioned integrated module or unit both can adopt hardware realizes, also can adopt the form of SFU software functional unit to realize.
If integrated module or unit are realized with the form of software function module or unit and during as independently production marketing or use, can be stored in the computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words, perhaps all or part of form that can software product of this technical scheme embodies, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of each embodiment method of the present invention.And aforesaid storage medium comprises: the various media that can be program code stored such as USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD.
More than; it only is the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily modification or the replacement of various equivalences, these modifications or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.

Claims (36)

1. a data back up method is characterized in that, comprising:
Main storage device receives the backup indication that backup server sends, and described backup indication is used to indicate the snapshot that described main storage device generates source book;
Described main storage device generates the snapshot of source book;
Described main storage device sends the snapshot sign of described snapshot to described backup server;
Described main storage device receives the signaling of the valid data bitmap of the described snapshot of inquiry that described backup server sends;
Described main storage device is inquired about the valid data bitmap of described snapshot according to the signaling of the valid data bitmap of the described snapshot of described inquiry;
Described main storage device sends the valid data bitmap of described snapshot to described backup server, so that described backup server backs up the valid data bitmap of described snapshot to backup storage device;
Described main storage device receives the signaling of valid data corresponding to the valid data bitmap of the described snapshot of inquiry that described backup server sends;
Described main storage device is inquired about described valid data according to the signaling of valid data corresponding to the valid data bitmap of the described snapshot of described inquiry;
Described main storage device sends described valid data to described backup server, so that described backup server backs up described valid data to described backup storage device.
2. data back up method as claimed in claim 1 is characterized in that, described main storage device generates before the snapshot of source book, and described method also comprises:
Main storage device creates source book;
Described main storage device shines upon described source book to application server so that the described source book of described application server carry, with the data of storing described application server to described source book.
3. data back up method as claimed in claim 1, it is characterized in that, the snapshot sign that described main storage device sends described snapshot is to the described backup server, and described main storage device receives before the signaling of valid data bitmap of the described snapshot of inquiry that described backup server sends, and described method also comprises:
Described main storage device receives the first indication that described backup server sends, and described the first indication is used to indicate described main storage device and sets up mapping relations between described snapshot and the described backup server;
Described main storage device is indicated the mapping relations of setting up between described snapshot and the described backup server according to described first, so that the described snapshot of described backup server carry.
4. data back up method as claimed in claim 3 is characterized in that, described method also comprises:
Described main storage device receives the second indication that described backup server sends, and described the second indication is used to indicate described main storage device and removes mapping relations between described backup server and described snapshot;
Described main storage device is removed the mapping relations between described backup server and described snapshot.
5. such as arbitrary described data back up method in the claim 1 to 4, it is characterized in that described method also comprises:
Described main storage device receives the 3rd indication that described backup server sends, and described the 3rd indication is used to indicate the described snapshot that described main storage device is deleted described source book;
Described main storage device is deleted the described snapshot of described source book.
6. a data back up method is characterized in that, comprising:
Backup server sends the backup indication to main storage device, generates the snapshot of source book to indicate described main storage device, sends the snapshot sign of described snapshot to described backup server by described main storage device;
Described backup server receives the snapshot sign that described main storage device sends;
Described backup server sends the signaling of the valid data bitmap of inquiring about described snapshot to described main storage device, so that described main storage device is inquired about the valid data bitmap of described snapshot according to the signaling of the valid data bitmap of the described snapshot of described inquiry;
Described backup server receives the valid data bitmap of the described snapshot of described main storage device transmission;
Described backup server backs up the valid data bitmap of described snapshot to backup storage device;
Described backup server receives the feedback information of the valid data bitmap that backs up described snapshot of described backup storage device transmission;
The signaling of the valid data that the described valid data bitmap that described backup server sends the described snapshot of inquiry according to the described described feedback information that has backed up the valid data bitmap of described snapshot is corresponding is to described main storage device, so that described main storage device is inquired about described valid data according to the described signaling of valid data corresponding to the described valid data bitmap of the described snapshot of described inquiry;
Described backup server receives the described valid data that described main storage device sends;
Described backup server backs up described valid data to described backup storage device;
Described backup server receives the feedback information of the described valid data that back up described snapshot of described backup storage device transmission.
7. data back up method as claimed in claim 6, it is characterized in that, described backup server receives after the snapshot sign of described main storage device transmission, and the signaling of valid data bitmap that described backup server sends the described snapshot of inquiry is to before the described main storage device, and described method also comprises:
Described backup server sends the first indication to described main storage device, so that described main storage device is indicated the mapping relations of setting up between described snapshot and the described backup server according to described first;
Described backup server is according to the mapping relations between described snapshot and the described backup server, the described snapshot of carry.
8. data back up method as claimed in claim 7 is characterized in that, described method also comprises:
Described backup server sends the second indication to described main storage device, so that described main storage device is removed the mapping relations between described backup server and described snapshot.
9. such as arbitrary described data back up method in the claim 6 to 8, it is characterized in that described method also comprises:
Described backup server sends the 3rd indication to described main storage device, so that described main storage device is deleted the described snapshot of described source book.
10. a data back up method is characterized in that, comprising:
Main storage device receives backup server according to Preset Time, the backup indication that intermittent sends, described backup indication is used to indicate described main storage device generating snapshot, and described Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data;
Described main storage device is according to described backup indication generating snapshot;
Described main storage device sends the snapshot sign of described snapshot to described backup server;
The signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with described this Backup Data of the snapshot when described main storage device receives described this Backup Data of inquiry that described backup server sends;
Described variance data bitmap between the snapshot the when snapshot the when signaling of the variance data bitmap between the snapshot of described main storage device during according to the snapshot of inquiry during described this a Backup Data front Backup Data adjacent with described this Backup Data is inquired about described this Backup Data and a front Backup Data adjacent with described this Backup Data;
Described variance data bitmap between the snapshot during the front Backup Data adjacent with described this Backup Data of the snapshot when described main storage device sends described this Backup Data is to described backup server, so that the described variance data bitmap between the snapshot the during snapshot of described backup server when backing up described this a Backup Data front Backup Data adjacent with described this Backup Data is to backup storage device;
Described main storage device receives the signaling of variance data corresponding to the described variance data bitmap of inquiry that described backup server sends;
Described main storage device is inquired about described variance data according to the described signaling of variance data corresponding to the described variance data bitmap of described inquiry;
Described main storage device sends described variance data to described backup server, so that described backup server backs up described variance data to described backup storage device.
11. data back up method as claimed in claim 10, it is characterized in that, the snapshot sign that described main storage device sends described snapshot is to the described backup server, and before the signaling of the variance data bitmap between the snapshot the during snapshot of described main storage device when receiving described this Backup Data of inquiry that described backup server sends a front Backup Data adjacent with described this Backup Data, described method also comprises:
Described main storage device receives the first indication that described backup server sends, and described the first indication is used to indicate described main storage device and sets up mapping relations between described snapshot and the described backup server;
Described main storage device is indicated the mapping relations of setting up between described snapshot and the described backup server according to described first, so that the described snapshot of described backup server carry.
12. data back up method as claimed in claim 11 is characterized in that, described method also comprises:
Described main storage device receives the second indication that described backup server sends, and described the second indication is used to indicate described main storage device and removes mapping relations between described backup server and described snapshot;
Described main storage device is removed the mapping relations between described backup server and described snapshot.
13. such as arbitrary described data back up method in the claim 10 to 12, it is characterized in that described method also comprises:
Described main storage device receives the 3rd indication that described backup server sends, and described the 3rd indication is used to indicate the snapshot when deleting a front Backup Data adjacent with described this Backup Data;
Snapshot when described main storage device is deleted a front Backup Data adjacent with described this Backup Data.
14. a data back up method is characterized in that, comprising:
Backup server is according to Preset Time, intermittent sends the backup indication to main storage device, so that described main storage device is according to described backup indication generating snapshot, by described main storage device generating snapshot, and the snapshot sign that sends described snapshot is to described backup server; Described Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data;
Described backup server receives the snapshot sign of the described snapshot of described main storage device transmission;
The signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with described this Backup Data of the described snapshot when described backup server sends described this Backup Data of inquiry is to described main storage device so that described main storage device when inquiring about described this Backup Data snapshot and the described variance data bitmap between the snapshot during a front Backup Data adjacent with described this Backup Data;
Described variance data bitmap between the snapshot when the described snapshot when described backup server receives described this Backup Data and a front Backup Data adjacent with described this Backup Data;
Described variance data bitmap between the snapshot the when snapshot during described this Backup Data of described backup server backup and a front Backup Data adjacent with described this Backup Data is to backup storage device;
Described backup server receives the feedback information that backs up described variance data bitmap that described backup storage device sends;
Described backup server sends the signaling of variance data corresponding to the described variance data bitmap of inquiry to described main storage device, so that described main storage device is inquired about variance data corresponding to described variance data bitmap;
Described backup server receives the described variance data that described main storage device sends;
Described backup server backs up described variance data to described backup storage device;
Described backup server receives the feedback information that backs up described variance data that described backup storage device sends.
15. data back up method as claimed in claim 14, it is characterized in that, described backup server receives after the snapshot sign of the described snapshot that described main storage device sends, and the signaling of the variance data bitmap between the snapshot during the described backup server described snapshot when sending described this Backup Data of an inquiry front Backup Data adjacent with described this Backup Data is extremely before the described main storage device, and described method also comprises:
Described backup server sends the first indication to described main storage device, so that described main storage device is indicated the mapping relations of setting up between described snapshot and the described backup server according to described first;
Described backup server is according to the described snapshot of described mapping relations carry.
16. data back up method as claimed in claim 15 is characterized in that, described method also comprises:
Described backup server sends the second indication to described main storage device, so that described main storage device is according to the mapping relations between described the second indication described backup server of releasing and described snapshot.
17. such as arbitrary described data back up method in the claim 14 to 16, it is characterized in that described method also comprises:
Described backup server sends the 3rd indication to described main storage device, so that the snapshot of described main storage device during according to described the 3rd an indication deletion front Backup Data adjacent with described this Backup Data.
18. a memory device is characterized in that, comprising:
Receiving element is used for receiving the backup indication that backup server sends, and described backup indication is used to indicate the snapshot that described memory device generates source book;
The snapshot unit is for the snapshot that generates source book;
Transmitting element is used for sending the snapshot sign of described snapshot to described backup server;
Described receiving element also is used for receiving the signaling of the valid data bitmap of the described snapshot of inquiry that described backup server sends;
Processing unit is used for inquiring about according to the signaling of the valid data bitmap of the described snapshot of described inquiry the valid data bitmap of described snapshot;
Described transmitting element also is used for sending the valid data bitmap of described snapshot to described backup server, so that described backup server backs up the valid data bitmap of described snapshot to backup storage device;
Described receiving element also is used for receiving the signaling of valid data corresponding to the valid data bitmap of the described snapshot of inquiry that described backup server sends;
Described processing unit also is used for inquiring about described valid data according to the signaling of valid data corresponding to the valid data bitmap of the described snapshot of described inquiry;
Described transmitting element also is used for sending described valid data to described backup server, so that described backup server backs up described valid data to described backup storage device.
19. memory device as claimed in claim 18 is characterized in that, also comprises:
Creating unit is used for creating source book;
Map unit is used for shining upon described source book to application server so that the described source book of described application server carry, with the data of storing described application server to described source book.
20. memory device as claimed in claim 18 is characterized in that,
Described receiving element also is used for receiving the first indication that described backup server sends; Described the first indication is used to indicate described main storage device and sets up mapping relations between described snapshot and the described backup server;
Described processing unit is also for the mapping relations of setting up according to described the first indication between described snapshot and the described backup server, so that the described snapshot of described backup server carry.
21. memory device as claimed in claim 20 is characterized in that,
Described receiving element also is used for receiving the second indication that described backup server sends, and described the second indication is used to indicate described main storage device and removes mapping relations between described backup server and described snapshot;
Described processing unit also is used for removing the mapping relations between described backup server and described snapshot.
22. such as arbitrary described memory device in the claim 18 to 21, it is characterized in that,
Described receiving element also is used for receiving the 3rd indication that described backup server sends, and described the 3rd indication is used to indicate the described snapshot that described main storage device is deleted described source book;
Described processing unit is also for the described snapshot of deleting described source book.
23. a server is characterized in that, comprising:
Transmitting element is used for sending the backup indication to main storage device, generates the snapshot of source book to indicate described main storage device, sends the snapshot sign of described snapshot to described backup server by described main storage device;
Receiving element is used for receiving the snapshot sign that described main storage device sends;
Described transmitting element also is used for sending the signaling of the valid data bitmap of inquiring about described snapshot to described main storage device, so that described main storage device is inquired about the valid data bitmap of described snapshot according to the signaling of the valid data bitmap of the described snapshot of described inquiry;
Described receiving element also is used for receiving the valid data bitmap of the described snapshot that described main storage device sends;
Backup units is used for backing up the valid data bitmap of described snapshot to backup storage device;
Described receiving element also is used for receiving the feedback information of the valid data bitmap that backs up described snapshot that described backup storage device sends;
Described transmitting element, the signaling of the valid data that the described valid data bitmap that also is used for sending the described snapshot of inquiry according to the described described feedback information that has backed up the valid data bitmap of described snapshot is corresponding is to described main storage device, so that described main storage device is inquired about described valid data according to the described signaling of valid data corresponding to the described valid data bitmap of the described snapshot of described inquiry;
Described receiving element also is used for receiving the described valid data that described main storage device sends;
Described backup units also is used for backing up described valid data to described backup storage device;
Described receiving element also is used for receiving the feedback information of the described valid data that back up described snapshot that described backup storage device sends.
24. server as claimed in claim 23 is characterized in that,
Described transmitting element also is used for sending the first indication to described main storage device according to described snapshot sign, so that described main storage device is indicated the mapping relations of setting up between described snapshot and the described backup server according to described first;
Described server also comprises: processing unit is used for according to the described snapshot of mapping relations carry between described snapshot and the described server.
25. server as claimed in claim 24 is characterized in that,
Described transmitting element also is used for sending the second indication to described main storage device, so that described main storage device is removed the mapping relations between described backup server and described snapshot.
26. such as arbitrary described server in the claim 23 to 25, it is characterized in that,
Described transmitting element also is used for sending the 3rd indication to described main storage device, so that described main storage device is deleted the described snapshot of described source book.
27. a memory device is characterized in that, comprising:
Receiving element, be used for receiving backup server according to Preset Time, the backup indication that intermittent sends, described backup indication is used to indicate described memory device generating snapshot, and described Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data;
The snapshot unit is used for according to described backup indication generating snapshot;
Transmitting element is used for sending the snapshot sign of described snapshot to described backup server;
Described receiving element, the signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with described this Backup Data of the snapshot when also being used for receiving described this Backup Data of inquiry that described backup server sends;
Processing unit, the described variance data bitmap between the snapshot the when snapshot the when signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with described this Backup Data of the snapshot when being used for according to described this Backup Data of described inquiry is inquired about described this Backup Data and a front Backup Data adjacent with described this Backup Data;
Described transmitting element, described variance data bitmap between the snapshot during the front Backup Data adjacent with described this Backup Data of the snapshot when also being used for sending described this Backup Data is to described backup server, so that the described variance data bitmap between the snapshot the during snapshot of described backup server when backing up described this a Backup Data front Backup Data adjacent with described this Backup Data is to backup storage device;
Described receiving element also is used for receiving the signaling of variance data corresponding to the described variance data bitmap of inquiry that described backup server sends;
Described processing unit also is used for inquiring about described variance data according to the described signaling of variance data corresponding to the described variance data bitmap of described inquiry;
Described transmitting element also is used for sending described variance data to described backup server, so that described backup server backs up described variance data to described backup storage device.
28. memory device as claimed in claim 27 is characterized in that,
Described receiving element also is used for receiving the first indication that described backup server sends; Described the first indication is used to indicate described main storage device and sets up mapping relations between described snapshot and the described backup server;
Described processing unit is also for the mapping relations of setting up according to described the first indication between described snapshot and the described backup server, so that the described snapshot of described backup server carry.
29. memory device as claimed in claim 28 is characterized in that,
Described receiving element also is used for receiving the second indication that described backup server sends, and described the second indication is used to indicate described main storage device and removes mapping relations between described backup server and described snapshot;
Described processing unit also is used for removing the mapping relations between described backup server and described snapshot.
30. such as arbitrary described memory device in the claim 27 to 29, it is characterized in that,
Described receiving element also is used for receiving the 3rd indication that described backup server sends, and described the 3rd indication is used to indicate the snapshot when deleting a front Backup Data adjacent with described this Backup Data;
Described processing unit, the snapshot when also being used for deleting a front Backup Data adjacent with described this Backup Data.
31. a server is characterized in that, comprising:
Transmitting element, be used for according to Preset Time, intermittent sends the backup indication to main storage device, so that described main storage device is according to described backup indication generating snapshot, by described main storage device generating snapshot, and the snapshot sign that sends described snapshot is to described backup server; Described Preset Time is the time interval of this Backup Data front Backup Data adjacent with this Backup Data;
Receiving element is for the snapshot sign of the described snapshot that receives described main storage device transmission;
Described transmitting element, the signaling of the variance data bitmap between the snapshot during the front Backup Data adjacent with described this Backup Data of the described snapshot when also be used for sending described this Backup Data of inquiry is to described main storage device so that described main storage device when inquiring about described this Backup Data snapshot and the described variance data bitmap between the snapshot during a front Backup Data adjacent with described this Backup Data;
Described receiving element, the described variance data bitmap between the snapshot when the described snapshot when also being used for receiving described this Backup Data and a front Backup Data adjacent with described this Backup Data;
Backup units, the described variance data bitmap between the snapshot the when snapshot when being used for backing up described this Backup Data and a front Backup Data adjacent with described this Backup Data is to backup storage device;
Described receiving element also is used for receiving the feedback information that backs up described variance data bitmap that described backup storage device sends;
Described transmitting element also is used for sending the signaling of variance data corresponding to the described variance data bitmap of inquiry to described main storage device, so that described main storage device is inquired about variance data corresponding to described variance data bitmap;
Described receiving element also is used for receiving the described variance data that described main storage device sends;
Described backup units also is used for backing up described variance data to described backup storage device;
Described receiving element also is used for receiving the feedback information that backs up described variance data that described backup storage device sends.
32. server as claimed in claim 31 is characterized in that,
Described transmitting element also is used for sending the first indication to described main storage device according to the snapshot sign of described snapshot, so that described main storage device is indicated the mapping relations of setting up between described snapshot and the described backup server according to described first;
Described server also comprises: processing unit is used for according to the described snapshot of described mapping relations carry.
33. server as claimed in claim 32 is characterized in that,
Described transmitting element also is used for sending the second indication to described main storage device, so that described main storage device is according to the mapping relations between described the second indication described backup server of releasing and described snapshot.
34. such as described server as described in arbitrary in the claim 31 to 33, it is characterized in that,
Described transmitting element also be used for to send the 3rd indication to described main storage device, so that the snapshot of described main storage device during according to described the 3rd an indication deletion front Backup Data adjacent with described this Backup Data.
35. a data backup system is characterized in that,
Comprise such as arbitrary described main storage device in the claim 18 to 22, and comprise such as arbitrary described backup server in the claim 23 to 26; Described data backup system also comprises:
Backup storage device is used for the valid data bitmap of the snapshot of the source book that the storage and backup service device sends;
Described backup storage device also be used for to send the described backup server that feeds back to of the valid data bitmap that backed up described snapshot;
Described backup storage device also is used for the valid data corresponding with the valid data bitmap that the storage and backup service device sends;
Described backup storage device also be used for to send the described backup server that feeds back to of the valid data of having stored described snapshot.
36. a data backup system is characterized in that, comprises arbitrary described main storage device in the claim 27 to 30, and arbitrary described backup server in the claim 31 to 34; Described data backup system also comprises:
Backup storage device, the variance data bitmap between the snapshot the when snapshot when being used for this Backup Data of storage and a front Backup Data adjacent with described this Backup Data;
Described backup storage device also is used for sending having backed up the described backup server of feeding back to of described variance data bitmap;
Described backup storage device also is used for the storage described variance data corresponding with described variance data bitmap to described backup storage device;
Described backup storage device also is used for sending having stored the described backup server of feeding back to of described variance data.
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CN104281538A (en) * 2013-07-03 2015-01-14 联想(北京)有限公司 Storage device capacity expanding and snapping method and storage devices
CN104281538B (en) * 2013-07-03 2019-05-31 联想(北京)有限公司 It is a kind of store equipment dilatation and Snapshot Method and storage equipment
CN106959888A (en) * 2016-01-11 2017-07-18 杭州海康威视数字技术股份有限公司 Task processing method and device in cloud storage system
WO2017161705A1 (en) * 2016-03-25 2017-09-28 中兴通讯股份有限公司 Method for copying data and electronic apparatus
CN105938457A (en) * 2016-03-31 2016-09-14 华为技术有限公司 Data filtering method, and device and data reading system
CN105938457B (en) * 2016-03-31 2018-10-02 华为技术有限公司 Filter method, device and the data reading system of data
CN106331152A (en) * 2016-09-20 2017-01-11 郑州云海信息技术有限公司 Method and device for realizing information synchronization between modules
CN106844597A (en) * 2017-01-14 2017-06-13 郑州云海信息技术有限公司 The method and its device of a kind of quick deletion dependent snapshot target volume
CN107197022A (en) * 2017-06-02 2017-09-22 华南理工大学 OpenStack storage optimization methods and system
CN107197022B (en) * 2017-06-02 2020-01-10 华南理工大学 OpenStack storage optimization method and system
CN108776622A (en) * 2018-06-06 2018-11-09 北京达佳互联信息技术有限公司 Method of data synchronization, device, computer equipment and storage medium
CN109408283A (en) * 2018-09-04 2019-03-01 深圳市宝德计算机系统有限公司 A kind of method of server data protection, equipment and storage medium
CN109324870A (en) * 2018-09-20 2019-02-12 郑州云海信息技术有限公司 A kind of method and apparatus for deleting the snapshot disk of virtual machine
WO2020133473A1 (en) * 2018-12-29 2020-07-02 华为技术有限公司 Data backup method, apparatus and system
CN109828950A (en) * 2019-01-29 2019-05-31 深圳前海达闼云端智能科技有限公司 Data protection method, management system, server and readable storage medium
CN111309527A (en) * 2020-02-29 2020-06-19 上海爱数信息技术股份有限公司 Method for reserving and restoring user snapshot in virtual backup system
CN111309527B (en) * 2020-02-29 2022-07-15 上海爱数信息技术股份有限公司 Method for reserving and restoring user snapshot in virtual backup system
CN112286869A (en) * 2020-10-29 2021-01-29 杭州宏杉科技股份有限公司 Snapshot creating method and device
CN114546714A (en) * 2020-11-27 2022-05-27 中国移动通信集团四川有限公司 Data backup method, system, device and storage medium
CN114546714B (en) * 2020-11-27 2023-07-21 中国移动通信集团四川有限公司 Data backup method, system, device and storage medium

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