CN105138421A - Off-site disaster recovery method and system - Google Patents
Off-site disaster recovery method and system Download PDFInfo
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- CN105138421A CN105138421A CN201510475475.0A CN201510475475A CN105138421A CN 105138421 A CN105138421 A CN 105138421A CN 201510475475 A CN201510475475 A CN 201510475475A CN 105138421 A CN105138421 A CN 105138421A
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Abstract
An off-site disaster recovery method is disclosed. Data of a plurality of local servers are backed up to an off-site data center; and the off-site data center shares the backed-up data to the plurality of local servers. According to the technical scheme of the present invention, the method and the system not only implement off-site disaster recovery but also enable the local servers to implement sharing by means of off-site disks.
Description
Technical field
The present invention relates to field of data storage, the method and system that especially a kind of strange land calamity is standby.
Background technology
The disaster recovery of data refers to and utilizes technology, and ladder of management and related resource guarantee set critical data, key business, the process that critical system can recover after disaster occurs.The standby emphasis being system storage and building of calamity.
In prior art, the server of multiple this locality is because isolation physically can not realize data sharing.
How data being carried out calamity standby, and realize calamity and realize data sharing for the rear user to having permission, is the technical issues that need to address.
Summary of the invention
In order to solve the problem, the invention provides the method that a kind of strange land calamity is standby, described method comprises:
The data of multiple home server are backuped to strange land data center;
Data sharing after backup is given described multiple home server by described strange land data center.
Alternatively, before the data of multiple home server are backuped to strange land data center, described method also comprises:
The disk of each home server is invented local virtual tape library VTL;
The disk of described strange land data center is invented strange land VTL VTL.
Alternatively, the described data by multiple home server backup to strange land data center, comprising:
First the data in multiple local virtual tape library VTL are stored in local data center;
Described local data center copies data to strange land VTL VTL again.
Alternatively, before described local data center copies data to strange land VTL VTL, described method also comprises:
Utilize data de-duplication technology, the data being stored in described local data center are processed.
Alternatively,
Data sharing after backup is given described multiple home server by described strange land data center, comprising:
Multiple local virtual tape library VTL is given by the data sharing of described share in different areas VTL VTL.
The system that strange land calamity is standby, system comprises: multiple home server, strange land data center;
Described multiple home server, for backuping to described strange land data center by the data of multiple home server;
Described strange land data center, for giving described multiple home server by the data sharing after backup.
Alternatively, the disk of each home server also for before the data of multiple home server are backuped to strange land data center, is invented VTL VTL by each home server described;
Described strange land data center, also for before the data of multiple home server are backuped to strange land data center, invents strange land VTL VTL by the disk of strange land data center.
Alternatively, described system also comprises local data center, for storing the data in multiple local virtual tape library VTL; Copy data to strange land VTL VTL.
Alternatively, described local data center also for before copy data to strange land VTL VTL at local data center, utilizes data de-duplication technology, processes the data being stored in described local data center.
Alternatively, described strange land data center also comprises sharing module, for the data sharing of strange land VTL VTL being given the VTL VTL of multiple this locality.
The present invention relates to memory system technologies field, be specifically related to the building method of a kind of multi-functional strange land calamity for server, the significant data remote copy on home server can be realized on the VTL of strange land Disaster Preparation Center, and after backup, realize sharing of data; With the addition of data in addition and heavily delete function, be applicable to the backup of medium-sized and small enterprises inside, effectively can reduce the bandwidth shared by repeating data transmission and storage space, reduce carrying cost, there is practical application widely.
Accompanying drawing explanation
Fig. 1 is the standby process flow diagram of a kind of strange land of the present invention calamity;
Fig. 2 is the standby system construction drawing of the strange land calamity of a kind of embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in detail.
It should be noted that, if do not conflicted, each feature in the embodiment of the present invention and embodiment can be combined with each other, all within protection scope of the present invention.In addition, although show logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
Fig. 1 is the standby process flow diagram of a kind of strange land of the present invention calamity;
Step S01: the data of multiple home server are backuped to strange land data center;
Step S02: the data sharing after backup is given described multiple home server by described strange land data center.
Alternatively, before the data of multiple home server are backuped to strange land data center, described method also comprises:
The disk of each home server is invented local virtual tape library VTL;
The disk of described strange land data center is invented strange land VTL VTL.
Alternatively, the described data by multiple home server backup to strange land data center, comprising:
First the data in multiple local virtual tape library VTL are stored in local data center;
Described local data center copies data to strange land VTL VTL again.
Alternatively, before described local data center copies data to strange land VTL VTL, described method also comprises:
Utilize data de-duplication technology, the data being stored in described local data center are processed.
Data de-duplication technology is a kind of data reducti techniques, normal and standby system conbined usage, the redundant data in deletion system.
According to the redundance of data itself, detect identical data, for identical data division, only store, transmit a copy, repeating part between mass data can be eliminated, be suitable for the storage of mass of redundancy data.
Based on the data de-duplication of block rank, the data block of backup only transmission change after initiating, only transmits pointer for repeating data, points to the raw data position write in storage pool.The data backed up in virtual tape are heavily deleted by this module, and only retain unique data in storage pool, this storage pool is as local data center.
Alternatively, the data sharing after backup is given described multiple home server by described strange land data center, comprising: give multiple local virtual tape library VTL by the data sharing of described share in different areas VTL VTL.
Data after overweight deleting, the VTL VTL in strange land is kept at by remote copy, because the tape of VTL VTL all have unique mark-----tape strip shape code, when there is a VTL in the corresponding strange land of multiple stage VTL this locality, identify each VTL by tape strip shape code.
The system that strange land calamity is standby, system comprises: multiple home server, strange land data center;
Described multiple home server, for backuping to described strange land data center by the data of multiple home server;
Described strange land data center, for giving described multiple home server by the data sharing after backup.
Alternatively, the disk of each home server also for before the data of multiple home server are backuped to strange land data center, is invented VTL VTL by each home server described;
Described strange land data center, also for before the data of multiple home server are backuped to strange land data center, invents strange land VTL VTL by the disk of strange land data center.
Alternatively, described system also comprises local data center, for storing the data in multiple local virtual tape library VTL; Copy data to strange land VTL VTL.
Alternatively, described local data center also for before copy data to strange land VTL VTL at local data center, utilizes data de-duplication technology, processes the data being stored in described local data center.
Alternatively, described strange land data center also comprises sharing module, for the data sharing of strange land VTL VTL being given the VTL VTL of multiple this locality.
Fig. 2 is the standby system construction drawing of the strange land calamity of a kind of embodiment of the present invention
System comprises five section office, local data center, a Disaster Preparation Center, sharing module,
Local disk is invented VTL VTL by each section office on own services device, Backup Data to local data center,
System comprises:
First section office VTL VTL201,
Second section office VTL VTL202,
3rd section office VTL VTL203,
4th section office VTL VTL204,
5th section office VTL VTL205,
Local data center 206;
At local data center 206, possesses data de-duplication module, for carrying out data de-duplication;
Also possesses remote copy module, for copying data to strange land Disaster Preparation Center 207;
System also comprises: strange land Disaster Preparation Center 207, strange land VTL VTL208,
Data are through data de-duplication module, delete the data of repetition, only retain unique data, again by remote copy module, copy to the Disaster Preparation Center 207 in strange land, on the VTL VTL that Disaster Preparation Center 207 stores data in again, strange land VTL VTL208, also can think a part for Disaster Preparation Center 207, be that the disk of Disaster Preparation Center 207 is invented in order to strange land VTL VTL208.
Five section office are connected with strange land VTL VTL208 respectively, obtain and share data.
A VTL VTL in the corresponding strange land of such five local virtual tape library VTL, the VTL VTL of multiple this locality achieves shared by the VTL VTL in a strange land.
Strange land Disaster Preparation Center has gathered the data of the local VTL of multiple stage, when a disaster occurs, by the data convert of strange land data center to local, can realize sharing of data.
Because the distinctive bar code of tape is unique, the data of backup can carry out one_to_one corresponding by the bar code of virtual tape, and do not worry obscuring of data.A VTL VTL of Disaster Preparation Center has gathered the Backup Data of five section office, can according to demand when disaster occurs, when causing local data to be lost, by data sharing module, by the data sharing on the VTL VTL of strange land data center to other the local section office having demand data.Strange land Disaster Preparation Center by Data Migration in real physical tape, can also carry out long term data preservation.
This multi-functional strange land calamity is simple for server building method, multiple functional, has very high practical value.
(1) this invention modular design is simple, is suitable for building of the long-distance disaster system of small enterprise's inside information.
(2) data de-duplication can reduce the data volume transmitted in a network, and then reduces energy ezpenditure and network cost, and shortens doubling time.
(3) function of VTL, can by virtual for various dissimilar disk space be tape library, there is compared with true tape library read or write speed and consistent operational means faster.
(4) strange land Disaster Preparation Center can realize sharing of VTL.
The all or part of step that one of ordinary skill in the art will appreciate that in said method is carried out instruction related hardware by program and is completed, and described program can be stored in computer-readable recording medium, as ROM (read-only memory), disk or CD etc.Alternatively, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Correspondingly, each module/unit in above-described embodiment can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to claim of the present invention.
Claims (10)
1. the method that strange land calamity is standby, is characterized in that, described method comprises:
The data of multiple home server are backuped to strange land data center;
Data sharing after backup is given described multiple home server by described strange land data center.
2. the method for claim 1, is characterized in that, before the data of multiple home server are backuped to strange land data center, described method also comprises:
The disk of each home server is invented local virtual tape library VTL;
The disk of described strange land data center is invented strange land VTL VTL.
3. method as claimed in claim 2, it is characterized in that, the described data by multiple home server backup to strange land data center, comprising:
First the data in multiple local virtual tape library VTL are stored in local data center;
Described local data center copies data to strange land VTL VTL again.
4. method as claimed in claim 3, it is characterized in that, before described local data center copies data to strange land VTL VTL, described method also comprises:
Utilize data de-duplication technology, the data being stored in described local data center are processed.
5. method as claimed in claim 2, is characterized in that,
Data sharing after backup is given described multiple home server by described strange land data center, comprising: give multiple local virtual tape library VTL by the data sharing of described share in different areas VTL VTL.
6. the system that strange land calamity is standby, is characterized in that, system comprises: multiple home server, strange land data center;
Described multiple home server, for backuping to described strange land data center by the data of multiple home server;
Described strange land data center, for giving described multiple home server by the data sharing after backup.
7. system as claimed in claim 6, is characterized in that, each home server described also for before the data of multiple home server are backuped to strange land data center,
The disk of each home server is invented VTL VTL;
Described strange land data center, also for before the data of multiple home server are backuped to strange land data center, invents strange land VTL VTL by the disk of strange land data center.
8. system as claimed in claim 7, it is characterized in that, described system also comprises local data center, for storing the data in multiple local virtual tape library VTL; Copy data to strange land VTL VTL.
9. system as claimed in claim 8, it is characterized in that, described local data center also for before copy data to strange land VTL VTL at local data center, utilizes data de-duplication technology, processes the data being stored in described local data center.
10. system as claimed in claim 7, it is characterized in that, described strange land data center also comprises sharing module, for the data sharing of strange land VTL VTL being given the VTL VTL of multiple this locality.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510475475.0A CN105138421A (en) | 2015-08-05 | 2015-08-05 | Off-site disaster recovery method and system |
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| CN201510475475.0A CN105138421A (en) | 2015-08-05 | 2015-08-05 | Off-site disaster recovery method and system |
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| CN102521072A (en) * | 2011-11-25 | 2012-06-27 | 成都市华为赛门铁克科技有限公司 | Virtual tape library equipment and data recovery method |
| US8620640B2 (en) * | 2003-08-05 | 2013-12-31 | Sepaton, Inc. | Emulated storage system |
| US8825969B2 (en) * | 2009-11-30 | 2014-09-02 | Netapp, Inc. | Eliminating duplicate data by sharing file system extents |
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2015
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| US8620640B2 (en) * | 2003-08-05 | 2013-12-31 | Sepaton, Inc. | Emulated storage system |
| US8825969B2 (en) * | 2009-11-30 | 2014-09-02 | Netapp, Inc. | Eliminating duplicate data by sharing file system extents |
| CN102521072A (en) * | 2011-11-25 | 2012-06-27 | 成都市华为赛门铁克科技有限公司 | Virtual tape library equipment and data recovery method |
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