CN109669815A - A kind of method and system restored by the long-range Mapping implementation Backup Data of LUN - Google Patents
A kind of method and system restored by the long-range Mapping implementation Backup Data of LUN Download PDFInfo
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- CN109669815A CN109669815A CN201811533589.6A CN201811533589A CN109669815A CN 109669815 A CN109669815 A CN 109669815A CN 201811533589 A CN201811533589 A CN 201811533589A CN 109669815 A CN109669815 A CN 109669815A
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- backup
- lun
- new
- virtual machine
- data
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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
- G06F11/1458—Management of the backup or restore process
- G06F11/1469—Backup restoration techniques
-
- 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
- G06F11/1458—Management of the backup or restore process
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/061—Improving I/O performance
- G06F3/0611—Improving I/O performance in relation to response time
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0629—Configuration or reconfiguration of storage systems
- G06F3/0631—Configuration or reconfiguration of storage systems by allocating resources to storage systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
- G06F3/065—Replication mechanisms
Abstract
The invention discloses a kind of methods restored by the long-range Mapping implementation Backup Data of LUN, are related to field of cloud computer technology.New LUN in backup storage is directly remotely mapped to the new volume created on virtual machine by the network between backup storage and cloud data center host by the present invention, and user logs in production virtual machine, can browse the file checked in backup storage, realize the recovery of data.Simultaneously, the present invention directly stores Backup Data from backup storage mapping to the virtual machine of cloud data center, it no longer needs Backup Data being copied to backup server, again to the process on cloud data center host, the link of Backup Data copy is shortened, some file for restoring the new LUN of backup storage does not need to copy entire LUN yet.The invention also discloses a kind of systems restored by the long-range Mapping implementation Backup Data of LUN.
Description
Technical field
The present invention relates to field of cloud computer technology is related to, it is specifically related to a kind of by the long-range Mapping implementation backup number of LUN
According to the method for recovery.
Background technique
When building cloud data center, generally require to back up the virtual machine of data center.It is standby to a virtual machine
After part completing, when recovering data, often user only needs to restore some past file, and existing recovery technology one
As be difficult to meet the data of file-level and restore, need to do entire disk and restore, and need the disk of recovery from backup
For server copy to cloud data center, carry is to virtual machine, after then taking out file, then disk is unloaded and is deleted.Entire mistake
Journey operation is relatively complicated, and copy time is longer when disk is larger.
Under normal circumstances, conventional backup software can only restore separate unit virtual machine or single disk, be less able to accomplish
File level restoration, when user needs to restore some file, can only be reached by restoring complete machine or restoring single disk system
To the purpose for restoring file.Restore complete machine and recovery disk requires to copy data, the time of recovery is longer.Especially
When user only needs to restore some file, and other files of same disk retain status, this reset mode just becomes
It is infeasible.
In this regard, also having incremental backup software by the way that Backup Data is copied to cloud data center, and new in cloud data center
It builds and restores a disk, then this block disk is hung over to the virtual machine of user, user logs in virtual machine and finds out the text for needing to restore
Part copies out, and then unloads and deletes disk.It is the process that tradition realizes file level restoration such as Fig. 1.It is mainly exactly by extensive
Entire disk is related to the data copy mistake between backup storage and cloud data center storage to cloud data center, this process again
Journey；Then carry disk logs in virtual machine and finds the file for needing to restore to virtual machine again；After completing file access pattern, it will restore
Volume and the corresponding LUN of volume delete.Achieve the effect that file and recovery.
It is in file-level recovery process, backup storage stores the process of copy data to cloud data center such as Fig. 2.From this
A process can be seen that, it is necessary first to the merging of Backup Data is first completed on backup server；Then by the backup after merging
Data by backup server to cloud data center host, then pass through cloud data center host storage to cloud data center storage
On, Backup Data is copied on the volume of cloud data center by completion.
Analysis conventional file level restoration process, it can be found that there are following two points defects:
Firstly, Backup Data needs to store from backup by longer data link and reach cloud data center storage；
Secondly, disk biggish for data volume, the time of copy is often very very long, and user often only needs to restore magnetic
A file on disk, but needs to restore entire disk.
Summary of the invention
The purpose of the invention is to overcome the shortcomings of above-mentioned background technique, provide a kind of by the long-range Mapping implementation of LUN
The method that Backup Data restores avoids the time-consuming in Backup Data copy procedure without carrying out telecopy to Backup Data
Problem.
The present invention provides a kind of method restored by the long-range Mapping implementation Backup Data of LUN, comprising the following steps:
Backup server receives the request of Client-initiated file access pattern, new volume is added on cloud data center host, standby
New LUN is added in part storage；
Backup Data is copied to new LUN from the LUN of backup storage by backup server；
By the long-range carry of new LUN containing Backup Data to virtual machine；
It logs in virtual machine and carries out file access pattern.
On the basis of above scheme, where the date of the specified file for needing to restore of file access pattern request and file
Disk.
On the basis of above scheme, Backup Data is copied to addition from the LUN of backup storage by the backup server
New LUN, specifically includes the following steps:
Backup server finds the Backup Data in backup storage in corresponding disk according to file access pattern request；
After the Backup Data for corresponding to disk in backup storage is merged, it is copied to the new LUN of addition.
On the basis of above scheme, it is described by the long-range carry of new LUN containing Backup Data to virtual machine, specifically include
Following steps:
By the network between backup storage and cloud data center host, the new LUN containing Backup Data is remotely mapped
New volume on to cloud data center host；
Load will be newly wrapping with to virtual machine after mapping.
On the basis of above scheme, the login virtual machine carries out file access pattern, specifically includes the following steps:
Virtual machine is logged in, the disk for needing to restore is found, is found on disk and is needed the file restored and copy to virtual
On machine, the recovery of file is completed；
It unloads and deletes the new volume and new LUN that have restored.
It is described that new volume is added on cloud data center host on the basis of above scheme, specifically includes the following steps:
Creation blank coil simultaneously modifies the volume mapping relationship saved in database, realizes the addition newly rolled up；
Or the information insertion database that will include volume mapping relationship, realize the addition newly rolled up.
The present invention provides a kind of system restored by the long-range Mapping implementation Backup Data of LUN, comprising:
Backup server, is used to receive the request of Client-initiated file access pattern, adds on cloud data center host new
Volume adds new LUN in backup storage, and Backup Data is copied to the new LUN of addition from the LUN of backup storage；
Long-range carry module, is used for the long-range carry of new LUN containing Backup Data to virtual machine；
File access pattern module is used to log in virtual machine and carries out file access pattern.
On the basis of above scheme, where the date of the specified file for needing to restore of file access pattern request and file
Disk.
On the basis of above scheme, Backup Data is copied to addition from the LUN of backup storage by the backup server
New LUN, specifically includes the following steps:
Backup server finds the Backup Data in backup storage in corresponding disk according to file access pattern request；
After the Backup Data for corresponding to disk in backup storage is merged, it is copied to the new LUN of addition.
On the basis of above scheme, the long-range carry module is by the long-range carry of new LUN containing Backup Data to void
Quasi- machine, specifically includes the following steps:
By the network between backup storage and cloud data center host, the new LUN containing Backup Data is remotely mapped
New volume on to cloud data center host；
Load will be newly wrapping with to virtual machine after mapping.
Compared with prior art, advantages of the present invention is as follows:
(1) the direct maps virtual machine of LUN, the data recovery of the corresponding volume of virtual machine are needed not move through network biography by the present invention
It is defeated, the time of data recovery is substantially reduced, only login virtual machine restores just to have a small amount of network transmission when file；It shortens
The link of Backup Data copy, it is no longer necessary to by data copy to backup server, then arrive cloud data center host, then arrive cloud number
According to the process of central store.
(2) it does not need to occupy cloud data center memory space in data recovery procedure of the present invention, it will not be to cloud data center
Storage impacts.
(3) present invention does not need for Backup Data to be copied to the corresponding volume of virtual machine, would not occupy cloud data center yet
Bandwidth, cloud data center will not perception data recovery processs.
Detailed description of the invention
Fig. 1 is that the tradition of background technique realizes the flow diagram of file level restoration；
Fig. 2 is the schematic diagram that the backup storage of background technique copies the process of data to production inventory；
Fig. 3 is the schematic diagram that the LUN for the method for the embodiment of the present invention restored by LUN realization data remotely maps；
Fig. 4 is the flow diagram of the method that data recovery is realized by LUN of the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is described in further detail.
Shown in Figure 3, the embodiment of the present invention provides a kind of method for realizing that data are restored by LUN, including following step
It is rapid:
Backup server receives the request of Client-initiated file access pattern, the specified text for needing to restore of file access pattern request
The date of part and the disk where file；New volume is added on cloud data center host, adds new LUN in backup storage；
Backup Data is copied to new LUN from the LUN of backup storage by backup server；
By the long-range carry of new LUN containing Backup Data to virtual machine；
It logs in virtual machine and carries out file access pattern.
The direct maps virtual machine of LUN, the data recovery of the corresponding volume of virtual machine are needed not move through net by the embodiment of the present invention
Network transmission, substantially reduces the time of data recovery, and only login virtual machine restores just to have a small amount of network transmission when file；Contracting
The link of short Backup Data copy, it is no longer necessary to by data copy to backup server, then to cloud data center host, then arrive
The process of cloud data center storage.
As preferred embodiment, Backup Data is copied to addition from the LUN of backup storage by the backup server
New LUN, specifically includes the following steps:
Backup server finds the Backup Data in backup storage in corresponding disk according to file access pattern request；
After the Backup Data for corresponding to disk in backup storage is merged, it is copied to the new LUN of addition.
The embodiment of the present invention does not need for Backup Data to be copied to the corresponding volume of virtual machine, would not occupy in cloud data yet
Central band is wide, and cloud data center will not perception data recovery process.
As preferred embodiment, it is described by the long-range carry of new LUN containing Backup Data to virtual machine, specifically include
Following steps:
By the network between backup storage and cloud data center host, the new LUN containing Backup Data is remotely mapped
New volume on to cloud data center host；
Load will be newly wrapping with to virtual machine after mapping.
The direct maps virtual machine of LUN, the data recovery of the corresponding volume of virtual machine are needed not move through net by the embodiment of the present invention
Network transmission, substantially reduces the time of data recovery.
As preferred embodiment, the login virtual machine carries out file access pattern, specifically includes the following steps:
Virtual machine is logged in, the disk for needing to restore is found, is found on disk and is needed the file restored and copy to virtual
On machine, the recovery of file is completed；
It unloads and deletes the new volume and new LUN that have restored.
It does not need to occupy cloud data center memory space in data recovery procedure of the embodiment of the present invention, it will not be in cloud data
Feel storage to impact.
As preferred embodiment, new volume is added on cloud data center host, specifically includes the following steps:
Creation blank coil simultaneously modifies the volume mapping relationship saved in database, realizes the addition newly rolled up；
Or the information insertion database that will include volume mapping relationship, realize the addition newly rolled up.
The following are an examples of volume mapping relationship:
In openstack volume databases, the provider_location field of volume table specifies the corresponding rear end of volume
LUN in storage modifies provider_location field value, so that it may will be in volume mapping to corresponding LUN.
It is shown in Figure 4, the method that data are restored is realized by LUN, specifically includes the following steps:
1) user initiates file access pattern request, the date of the specified file for needing to restore and the disk where file；
2) backup server receives request, finds the Backup Data of corresponding disk；
3) backup server creates a new volume by calling interface on cloud data center host；
4) it after backup server merges the Backup Data saved in backup storage, is copied in new LUN；
5) it by the newly-built new LUN containing Backup Data, is mapped to by backup network new on cloud data center host
Volume；
6) load will be newly wrapping with to virtual machine after mapping on cloud data center host；
7) virtual machine is logged in, the disk of recovery is found, is found on disk on corresponding file copy to virtual machine, is completed
The recovery of file；
8) new volume and new LUN that unloading restores；
9) the new volume and new LUN restored is deleted.
The embodiment of the present invention also provides a kind of system for realizing that data are restored by LUN, comprising:
Backup server is used to receive the request of Client-initiated file access pattern, and the file access pattern request is specified to be needed
The date of the file of recovery and the disk where file；New volume is added on cloud data center host, is added in backup storage
Backup Data is copied to the new LUN of addition by new LUN from the LUN of backup storage；
Long-range carry module, is used for the long-range carry of new LUN containing Backup Data to virtual machine；
File access pattern module is used to log in virtual machine and carries out file access pattern.
The direct maps virtual machine of LUN, the data recovery of the corresponding volume of virtual machine are needed not move through net by the embodiment of the present invention
Network transmission, substantially reduces the time of data recovery, and only login virtual machine restores just to have a small amount of network transmission when file；Contracting
The link of short Backup Data copy, it is no longer necessary to by data copy to backup server, then to cloud data center host, then arrive
The process of cloud data center storage.
As preferred embodiment, Backup Data is copied to addition from the LUN of backup storage by the backup server
New LUN, specifically includes the following steps:
Backup server finds the Backup Data in backup storage in corresponding disk according to file access pattern request；
After the Backup Data for corresponding to disk in backup storage is merged, it is copied to the new LUN of addition.
The embodiment of the present invention does not need for Backup Data to be copied to the corresponding volume of virtual machine, would not occupy in cloud data yet
Central band is wide, and cloud data center will not perception data recovery process.
As preferred embodiment, the long-range carry module is by the long-range carry of new LUN containing Backup Data to void
Quasi- machine, specifically includes the following steps:
By the network between backup storage and cloud data center host, the new LUN containing Backup Data is remotely mapped
New volume on to cloud data center host；
Load will be newly wrapping with to virtual machine after mapping.
The direct maps virtual machine of LUN, the data recovery of the corresponding volume of virtual machine are needed not move through net by the embodiment of the present invention
Network transmission, substantially reduces the time of data recovery.
As preferred embodiment, the file access pattern module logs in virtual machine and carries out file access pattern, specifically include with
Lower step:
Virtual machine is logged in, the disk for needing to restore is found, is found on disk and is needed the file restored and copy to virtual
On machine, the recovery of file is completed；
It unloads and deletes the new volume and new LUN that have restored.
It does not need to occupy cloud data center memory space in data recovery procedure of the embodiment of the present invention, it will not be in cloud data
Feel storage to impact.
The embodiment of the present invention includes file level restoration is not limited to, it is readily applicable to the interim recovery or quickly extensive of disk
It is multiple to wait in such a way that backup storage LUN directly maps cloud data center virtual machine.
Those skilled in the art can carry out various modifications to the embodiment of the present invention and modification, if these modifications and change
For type within the scope of the claims in the present invention and its equivalent technologies, then these modifications and variations are also in protection scope of the present invention
Within.The prior art that the content being not described in detail in specification is known to the skilled person.
Claims (10)
1. a kind of method restored by the long-range Mapping implementation Backup Data of LUN, which comprises the following steps:
Backup server receives the request of Client-initiated file access pattern, and new volume is added on cloud data center host, is deposited in backup
New LUN is added in storage；
Backup Data is copied to new LUN from the LUN of backup storage by backup server；
By the long-range carry of new LUN containing Backup Data to virtual machine；
It logs in virtual machine and carries out file access pattern.
2. the method as described in claim 1, it is characterised in that: the day of the specified file for needing to restore of file access pattern request
Disk where phase and file.
3. method according to claim 2, it is characterised in that: the backup server stores Backup Data from backup
LUN is copied to the new LUN of addition, specifically includes the following steps:
Backup server finds the Backup Data in backup storage in corresponding disk according to file access pattern request；
After the Backup Data for corresponding to disk in backup storage is merged, it is copied to the new LUN of addition.
4. method according to claim 2, it is characterised in that: described to give the long-range carry of new LUN containing Backup Data to void
Quasi- machine, specifically includes the following steps:
By the network between backup storage and cloud data center host, the new LUN containing Backup Data is remotely mapped into cloud
New volume on data center's host；
Load will be newly wrapping with to virtual machine after mapping.
5. method according to claim 2, it is characterised in that: the login virtual machine carries out file access pattern, specifically include with
Lower step:
Virtual machine is logged in, the disk for needing to restore is found, is found on disk and is needed the file restored and copy on virtual machine,
Complete the recovery of file；
It unloads and deletes the new volume and new LUN that have restored.
6. method according to claim 2, it is characterised in that: described to add new volume, specific packet on cloud data center host
Include following steps:
Creation blank coil simultaneously modifies the volume mapping relationship saved in database, realizes the addition newly rolled up；
Or the information insertion database that will include volume mapping relationship, realize the addition newly rolled up.
7. a kind of system restored by the long-range Mapping implementation Backup Data of LUN characterized by comprising
Backup server, is used to receive the request of Client-initiated file access pattern, and new volume is added on cloud data center host,
New LUN is added in backup storage, Backup Data is copied to the new LUN of addition from the LUN of backup storage；
Long-range carry module, is used for the long-range carry of new LUN containing Backup Data to virtual machine；
File access pattern module is used to log in virtual machine and carries out file access pattern.
8. system as claimed in claim 7, it is characterised in that: the day of the specified file for needing to restore of file access pattern request
Disk where phase and file.
9. system as claimed in claim 7, it is characterised in that: the backup server stores Backup Data from backup
LUN is copied to the new LUN of addition, specifically includes the following steps:
Backup server finds the Backup Data in backup storage in corresponding disk according to file access pattern request；
After the Backup Data for corresponding to disk in backup storage is merged, it is copied to the new LUN of addition.
10. system as claimed in claim 7, it is characterised in that: the long-range carry module is by the new LUN containing Backup Data
Long-range carry to virtual machine, specifically includes the following steps:
By the network between backup storage and cloud data center host, the new LUN containing Backup Data is remotely mapped into cloud
New volume on data center's host；
Load will be newly wrapping with to virtual machine after mapping.
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Application publication date: 20190423 |