CN106126370A - Based on the Server free backup method and the system that store increment bitmap between snapshot - Google Patents
Based on the Server free backup method and the system that store increment bitmap between snapshot Download PDFInfo
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- CN106126370A CN106126370A CN201610423629.6A CN201610423629A CN106126370A CN 106126370 A CN106126370 A CN 106126370A CN 201610423629 A CN201610423629 A CN 201610423629A CN 106126370 A CN106126370 A CN 106126370A
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- backup
- server
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- storage
- volume
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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
Abstract
The present invention relates to a kind of based on the Server free backup method and the system that store increment bitmap between snapshot, data block bitmap change function between the acquisition storage volume snapshot that manufacturer provides is stored by utilizing, and parse delta data block and the side-play amount of the volume of snapshot correspondence time point according to the increment bitmap between snapshot, thus have only to the data block of change in backup snapshots.Compared with prior art, the present invention solves and clone volume carries out on backup server waste of storage space that full backup causes and reduces BACKUP TIME window, save the IO expense of backup server, enterprise's data managing capacity at this block of data backup can be greatly promoted simultaneously, improve the backup performance of Server free.
Description
Technical field
The present invention relates to a kind of backup method and system, especially relate to a kind of based on increment bitmap between storage snapshot
Server-free backup method and system.
Background technology
In information technology and data management field, widely available along with storage area network (SAN) equipment, occur in that
Two kinds of backup modes of LAN-free and Server-free.LAN-free is that production is directly taken by the data of backup by SAN network
Data on business device backup to storage.Although connecting storage array by FC switch and producing server, compare traditional standby
Part technology substantially increase the height in network transmission process handle up, the problem such as low time delay, but this backup mode needs for accounting for
By the resource producing server.Server-free is that backup procedure completes inside SAN, and mass data stream is without flowing through life
Produce server, then can greatly reduce the backup operation impact on producing server.
At present Server-free scheme generally divides two classes:
One class is that data copy another set of storage device to from a set of storage device.As supported SCSI-3 agreement (SCSI: little
Type computer system interface) tape library, the storage device such as hard disk array send the Xcopy life sent from backup server
Order, and directly between storage device, migrate data according to the parameter in Xcopy order, and it is no longer pass through the participation of server；
Send out from backup server as supported that the storage devices such as the tape library of Network Data Management Protocol (NDMP), hard disk array send
The backup command (Backup Commond) sent, allows and migrates data between storage device, and be no longer pass through the participation of server.But
The two scheme still existing defects, both schemes all use the operational order providing few in number to carry out copying of data
Shellfish, the mode of copy is also the path copy function to path, for time point management, the group of data directory from the point of view of standby system
Knit also be one highly difficult.Moreover the disk at the destination place of backup is also the risk having damage, it is impossible to utilize backup to produce
The distributed objects of product stores these the most advanced more reliable technology.
The patent that the another kind of the first authors of being once write: (SSH is the abbreviation of Secure Shell, by IETF by SSH
Network work group (Network Working Group) formulated；SSH is to aim at telnet session and other networks clothes
Business provides the agreement of safety.) far call CLI instruction (CLI:command-line interface, command line interface) (as
Fig. 1) or web Service interface based on http protocol (HTML (Hypertext Markup Language)) management difference storage manufacturer storage, right
To be wrapping with by the way of carry again after specifying storage volume clone and be loaded onto inside backup server (such as Fig. 2) or backup server
Virtual machine environment simulation agency service end or carry to the most external proxy server.Standby to involving in row in new environment again
Part, so production server being had no effect, the destination of backup can also select the most cheap storage medium, completes standby
After Fen again by the clonal deletion in high-end storage in case save space, be finally reached the backup purpose of a kind of Server-free.But
Be the program still face problem be exactly each time point be the full backup of a clone volume, the increasing put over time
Adding or the increase of backup target, the memory space of backup server is had too many difficulties to cope with, and backs up every time and all carry out full backup
By causing backup tasks to devote a tremendous amount of time the data repeated in backup, it is discounted from the point of view of ageing.
The VMware soft defined storage item that VMware (virtualization solution leading manufacturer) promotes at present
Mesh virtual volumes (be called for short vvol) promotes in each main flow storage manufacturer, VMware define a set of VASA (full name:
VSphere APIs for Storage Awareness) northbound interface, and mainstream vendor want to be integrated into VMware this
Virtualization solution, they are accomplished by realizing the southbound interface of a set of correspondence, at present major part master from the point of view of VMware official website
Stream manufacturer all achieves this set of southbound interface.This socket is based on HTTPS agreement (HTML (Hypertext Markup Language) of safety), wherein
The function of one interface there is provided and obtains the data block bitmap of snapshot change before and after storage volume.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide a kind of based on storage snapshot
Between the Server-free backup method of increment bitmap and system, solve, on backup server, clone volume carried out full dose
Back up the waste of storage space caused and reduce BACKUP TIME window, saving the IO expense of backup server, the most permissible
It is greatly promoted enterprise's data managing capacity at this block of data backup, improves the backup performance of Server-free.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of based on the Server-free backup method of increment bitmap between storage snapshot, by utilizing storage manufacturer to carry
Data block bitmap change function between the acquisition storage volume snapshot of confession, and parse snapshot pair according to the increment bitmap between snapshot
Answer delta data block and the side-play amount of the volume of time point, thus have only to the data block of change in backup snapshots.
The method specifically comprises the following steps that
1) create LUN (logical block that the memory space in storage pool divides) on a storage device and add production service
The mark of device, produces server and is mounted to produce server by LUN by mark；
2) produce on server the carry volume of storage device distribution, then this volume is used for production application, the need to
This is involved in row data protection, and performs step 3)；
3) backup server obtains the volume information of storage distribution by producing the backup client on server, simultaneously standby
Fill in the information of storage device on part server, and perform step 4)；
4) backup server initiates the volume of the carry produced on server is performed snapshot, and before snapshot, backup server passes through
The application that backup client notice produces on server is mourned in silence, thus ensures the concordance of data, after snapshot has performed
Mourning in silence of release application；
5) backup server is by the snapshots in storage device to backup server, according to backup policy, first to extension
The snapshot being downloaded on backup server carries out full backup；When triggering incremental backup, perform step 4), and by last fast
According to contrasting the bitmap of change with this snapshot, only back up the data block of change according to increment bitmap；
6) snapshot after backup completes, on unloading backup server.
Described step 1) in be designated WWPN/IQN.
Described step 3) in the information of storage device include the type of storage device, IP, port and accounts information, logical
Cross storing device information and obtain storage api interface or CMD operating right.
A kind of for described based on the system of the Server-free backup method of increment bitmap, bag between storage snapshot
Include production server, backup server and storage device；
Described producing the volume that the storage device of carry on server provides, this volume is used for providing on production server to be applied
Storage data；
Installing backup client on described production server, this client is for communicating with between backup server, standby
Part server obtains and produces the volume information needing backup on server；
LUN in storage device, according to producing the volume information obtained on server, is carried out soon by described backup server
According to, and by snapshots to backup server, thus snapshot is backed up.
Compared with prior art, the present invention provides the snapshot of LUN by storage manufacturer and obtains change between snapshot
The functions such as bitmap, can involve in row soon by the web Service interface that storage manufacturer provides to be mounted on production server
According to, then by snapshots to backup server, thus involve in row data protection to producing carry on server.This based on depositing
Between storage snapshot, the Server-free backup method of increment bitmap had both decreased when backup carry is rolled up the resource producing server
Rely on, decrease again the memory space on backup server and BACKUP TIME window, the most indirectly solve simultaneously storage device because of
Retain snapshot copy to limit, and the problem of data before copy can not be recovered.
Accompanying drawing explanation
Fig. 1 is that far call CLI instructs schematic diagram；
Fig. 2 is standby system structural representation of the present invention；
Fig. 3 is the bitmap of full backup and incremental backup；
Fig. 4 is the flow chart of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is a part of embodiment of the present invention rather than whole embodiment wholely.Based on this
Embodiment in bright, the every other reality that those of ordinary skill in the art are obtained on the premise of not making creative work
Execute example, all should belong to the scope of protection of the invention.
The present invention realizes a kind of Server-free backup method based on data block bitmap change between storage snapshot.At this
Invention mainly has production server 1, backup server 2 and storage device 3 three part constitute (such as Fig. 2): 1) produce service
Relation between device and storage, produces the volume that the storage device of carry on server provides, and this volume is used for providing production server
Application memory data；2) produce relation between server and backup server, produce and be mounted with backup client on server, this
Client is for communicating with between backup server, and backup server can obtain and produce the volume letter needing backup on server
Breath；3) relation between backup server and storage device, backup server can according to producing the volume information obtained on server,
LUN (logical block that the memory space in storage pool divides) in storage device is carried out snapshot, and snapshots is arrived
On backup server, thus backing up snapshot, so backup does not has any impact to producing server performance.
The Server-free backup method of the increment bitmap in patent of the present invention be combine storage snapping technique and snapshot it
Between data block bitmap change technique feature realize form.Concrete operation is carried out according to following steps:
1) create LUN on a storage device, and add WWPN/IQN (the FC optical fiber producing server on a storage device
Or the global unique identification of iSCSI), produce server and pass through data IP and iscsi target device IQN or WWPN by LUN
It is mounted to produce server.
2) produce on server the carry volume of storage distribution, then this volume be used for production application, at this moment the need to
This is involved in row data protection, and considers not affect production server performance as far as possible；
3) backup server obtains the volume information of storage distribution by producing the backup client on server, simultaneously need to
Backup server fills in the type of storage device, IP, port, accounts information etc., so can obtain storage api interface or
CMD operating right；
4) backup server initiates the volume of the carry produced on server is performed snapshot, and before snapshot, backup server passes through
The application that backup client notice produces on server to be mourned in silence, thus ensures the concordance of data, and snapshot has performed
After need release application mourn in silence；
5) backup server is by the snapshots in storage device to backup server, according to backup policy, first to extension
The snapshot being downloaded on backup server carries out full backup；When triggering incremental backup, need to perform step 4), then by upper one
Secondary snapshot and this snapshot contrast the bitmap of change, only back up the data block (such as Fig. 3) of change according to increment bitmap.
6) after backup completes, need to unload the snapshot on backup server, if the carry volume otherwise produced on server
Delete not fall when needing to delete.
Below in conjunction with shown in Fig. 4, implementation example of the present invention is further described:
Storing as storage device using Huawei V3 in implementation process, backup client is deployed in one and produces on server,
Backup server is deployed on an other linux machine.This implementation example concrete operation step is as follows:
1) in Huawei's V3 storage, create the LUN of a 100G size, and be mounted to produce on server, initialize simultaneously
It is that one piece of disk (D dish) provides production application；
2) producing installation backup client on server, backup server is got by backup client needs protection
Data source D；
3) LUN that Huawei's V3 storage is mounted to produce on server by backup server by web Service interface performs
Snapshot, snapshot first notifies before performing that producing application on server carries out setting of mourning in silence, it is ensured that the integrity of snapshot data, snapshot is held
The setting of mourning in silence of release application after row；
4) backup server passes through web Service interface by snapshots in Huawei's V3 storage to backup server, and leads to
Cross iSCSI scanning and obtain the ID of snapped volume, then by the V3 storage of inquiry iSCSI carry information comparison Huawei No. WWN of snapshot
Map corresponding disk (/dev/sdd dish)；
5) by 100G /dev/sdd dish divides according to section size 2G, the original position of section is 0, the start bit of next section
It is set to 2G, terminates when circulating until 100G successively, and obtain Huawei according to information segmentings such as block size (4M) and snapshot ID (13)
The character string message bit pattern (character that 128 f represent) of the hexadecimal representation of the snapshot of V3 storage carry, according to message bit pattern
Needing to back up all of data block, this time backup procedure is a full backup；
6), after having backed up, backup server is mounted to backup server by web Service interface to Huawei's V3 storage
On snapshot unload；
7) if having only to carry out full backup, snapshot can be deleted and clear up residual data, if needing to carry out increment
Backup is not deleted, and again performs step 3)～5), wherein step 5) needs transmit last snapshot ID (13) and this increases
The snapshot ID (14) of amount backup, obtains the character string bitmap of the hexadecimal representation of contrast between the snapshot of Huawei V3 storage carry
Information (128 the 0～f characters represented), parses further according to message bit pattern and needs the data block of backup to only have 3G, complete once
Incremental backup.After incremental backup completes, perform step 6) snapshot is unloaded, and delete snapshot and cleaning residual data.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in the amendment of various equivalence or replace
Changing, these amendments or replacement all should be contained within protection scope of the present invention.Therefore, protection scope of the present invention should be with right
The protection domain required is as the criterion.
Claims (5)
1. one kind based on the Server-free backup method of increment bitmap between storage snapshot, it is characterised in that deposited by utilization
Data block bitmap change function between the acquisition storage volume snapshot that storage manufacturer provides, and resolve according to the increment bitmap between snapshot
Go out delta data block and the side-play amount of the volume of snapshot correspondence time point, thus have only to the data block of change in backup snapshots.
The most according to claim 1 a kind of based on the Server-free backup method of increment bitmap between storage snapshot, its
Being characterised by, the method specifically comprises the following steps that
1) create LUN on a storage device and add the mark producing server, producing server and by mark, LUN is mounted to
Produce server；
2) producing on server the carry volume of storage device distribution, then this volume being used for production application, if needed this
Involve in row data protection, and perform step 3)；
3) backup server obtains the volume information of storage distribution by producing the backup client on server, simultaneously at backup clothes
Fill in the information of storage device on business device, and perform step 4)；
4) backup server initiates the volume of the carry produced on server is performed snapshot, and before snapshot, backup server is by backup
The application that client notification produces on server is mourned in silence, thus ensures the concordance of data, and snapshot discharges after having performed
Mourning in silence of application；
5) backup server is by the snapshots in storage device to backup server, according to backup policy, first to being mounted to
Snapshot on backup server carries out full backup；When triggering incremental backup, perform step 4), and by last snapshot and
This time snapshot contrasts the bitmap of change, only backs up the data block of change according to increment bitmap；
6) snapshot after backup completes, on unloading backup server.
The most according to claim 2 a kind of based on the Server-free backup method of increment bitmap between storage snapshot, its
Be characterised by, described step 1) in be designated WWPN/IQN.
The most according to claim 2 a kind of based on the Server-free backup method of increment bitmap between storage snapshot, its
Be characterised by, described step 3) in the information of storage device include the type of storage device, IP, port and accounts information,
Storage api interface or CMD operating right is obtained by storing device information.
5. one kind described in the claim 1 based on the Server-free backup method of increment bitmap between storage snapshot
System, it is characterised in that include producing server, backup server and storage device；
Described producing the volume that the storage device of carry on server provides, this volume is used for providing application memory on production server
Data；
Installing backup client on described production server, this client is for communicating with between backup server, and backup takes
Business device obtains and produces the volume information needing backup on server；
Described backup server, according to producing the volume information obtained on server, carries out snapshot to the LUN in storage device, and
And by snapshots to backup server, thus snapshot is backed up.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107193691A (en) * | 2017-05-15 | 2017-09-22 | 深圳市奇摩计算机有限公司 | Directly from the method for storage device Backup Data and its realize system and alternate device |
| CN107256182A (en) * | 2017-05-03 | 2017-10-17 | 上海上讯信息技术股份有限公司 | A kind of method and apparatus of database restoration |
| CN107577559A (en) * | 2017-09-06 | 2018-01-12 | 北京腾凌科技有限公司 | The backup method and device of a kind of configuration file |
| CN107888675A (en) * | 2017-11-08 | 2018-04-06 | 长沙曙通信息科技有限公司 | A kind of distributed memory system data recovery implementation method |
| CN108509641A (en) * | 2018-04-11 | 2018-09-07 | 北京小米移动软件有限公司 | Method, apparatus, server and the system of file backup |
| CN108804248A (en) * | 2017-04-28 | 2018-11-13 | 南京壹进制信息技术股份有限公司 | A kind of automatic Verification method of volume real-time guard data |
| CN109254874A (en) * | 2018-08-29 | 2019-01-22 | 郑州云海信息技术有限公司 | Method for transformation, device and the equipment of a kind of piece of storing data snapshot type |
| CN110018987A (en) * | 2017-11-08 | 2019-07-16 | 阿里巴巴集团控股有限公司 | Snapshot creation method, apparatus and system |
| CN110188068A (en) * | 2019-05-16 | 2019-08-30 | 上海爱数信息技术股份有限公司 | A kind of volume grade backup method and device guaranteeing file system data consistency |
| CN110633260A (en) * | 2019-08-07 | 2019-12-31 | 上海爱数信息技术股份有限公司 | NAS storage data continuous protection method and protection system |
| CN111158958A (en) * | 2019-12-31 | 2020-05-15 | 广州鼎甲计算机科技有限公司 | Backup method, system, device and storage medium capable of quickly recovering data |
| CN111625401A (en) * | 2020-05-29 | 2020-09-04 | 浪潮电子信息产业股份有限公司 | Data backup method and device based on cluster file system and readable storage medium |
| CN113626261A (en) * | 2021-10-13 | 2021-11-09 | 苏州浪潮智能科技有限公司 | Data backup method, device and equipment and computer readable storage medium |
| CN114356849A (en) * | 2022-03-21 | 2022-04-15 | 联想凌拓科技有限公司 | Data management method and device of file system, electronic equipment and storage medium |
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| CN109254874A (en) * | 2018-08-29 | 2019-01-22 | 郑州云海信息技术有限公司 | Method for transformation, device and the equipment of a kind of piece of storing data snapshot type |
| CN110188068A (en) * | 2019-05-16 | 2019-08-30 | 上海爱数信息技术股份有限公司 | A kind of volume grade backup method and device guaranteeing file system data consistency |
| CN110633260A (en) * | 2019-08-07 | 2019-12-31 | 上海爱数信息技术股份有限公司 | NAS storage data continuous protection method and protection system |
| CN110633260B (en) * | 2019-08-07 | 2023-06-06 | 上海爱数信息技术股份有限公司 | NAS storage data continuous protection method and protection system |
| CN111158958A (en) * | 2019-12-31 | 2020-05-15 | 广州鼎甲计算机科技有限公司 | Backup method, system, device and storage medium capable of quickly recovering data |
| CN111625401A (en) * | 2020-05-29 | 2020-09-04 | 浪潮电子信息产业股份有限公司 | Data backup method and device based on cluster file system and readable storage medium |
| CN111625401B (en) * | 2020-05-29 | 2023-03-21 | 浪潮电子信息产业股份有限公司 | Data backup method and device based on cluster file system and readable storage medium |
| CN113626261A (en) * | 2021-10-13 | 2021-11-09 | 苏州浪潮智能科技有限公司 | Data backup method, device and equipment and computer readable storage medium |
| CN114356849A (en) * | 2022-03-21 | 2022-04-15 | 联想凌拓科技有限公司 | Data management method and device of file system, electronic equipment and storage medium |
| CN114356849B (en) * | 2022-03-21 | 2022-05-17 | 联想凌拓科技有限公司 | Data management method and device of file system, electronic equipment and storage medium |
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Application publication date: 20161116 |