CN107133131A - A kind of virtual machine synthesized backup method based on VMware - Google Patents
A kind of virtual machine synthesized backup method based on VMware Download PDFInfo
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- CN107133131A CN107133131A CN201710397781.6A CN201710397781A CN107133131A CN 107133131 A CN107133131 A CN 107133131A CN 201710397781 A CN201710397781 A CN 201710397781A CN 107133131 A CN107133131 A CN 107133131A
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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
- G06F11/1479—Generic software techniques for error detection or fault masking
- G06F11/1482—Generic software techniques for error detection or fault masking by means of middleware or OS functionality
- G06F11/1484—Generic software techniques for error detection or fault masking by means of middleware or OS functionality involving virtual machines
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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
- G06F11/1451—Management of the data involved in backup or backup restore by selection of backup contents
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Abstract
A kind of virtual machine synthesized backup method based on VMware, using merging backup mode, after backup completely is carried out once, each backup afterwards is all only needed to from the data block of production environment virtual machine reading change to backup server, then in the merging process of the enterprising row data of backup server, while backup procedure is substantially reduced to the resource consumption of production environment, generate the synthetic backup point for possessing independent completion recovery capability, it is greatly improved the low consumption high reliability of backup software, advantage of the differential backup to the low consumption of resources of production environment can be had concurrently, can generate as backup completely again simultaneously one it is independent, it is not need to rely on the full backup point of any other backup point.Superpower safety guarantee is provided again while minimum impact is produced to production environment, is significant for the disaster-tolerant backup reliability for lifting VMware virtual machines.
Description
Technical field
The present invention relates to computer data backup technical field, more particularly to a kind of virtual machine synthesis based on VMware are standby
Part method.
Background technology
Improved constantly with the hardware capabilities of separate unit physical equipment, virtualization product is increasingly favored by client.
In actual production environment, virtualization technology is mainly used to solve high performance physical hardware production capacity surplus and old old hardware
The too low restructuring of production capacity is reused, transparence bottom physical hardware, so that maximized utilization physical hardware.Finance, interconnection at present
The larger field of the data volumes such as net, medical treatment all has begun to widely use virtualization product.Wherein, VMware companies
VSphere series of products the features such as its is easy to use, feature-rich, reliability is high to turn into the most widely used void in the world
Planization product.
Although VMware has so powerful function in virtualization, in actual production system, if there is
Hard disk corruptions, magnetic disk of virtual machine file corruption etc. are unexpected, and VMware virtual machine can not also be accomplished to can continue to normal operation, because
Caused by important application long-time interrupt, the loss of significant data situations such as will bring inestimable loss for client.
In order to tackle above-mentioned situation, the disaster tolerance that major companies for being absorbed in disaster-tolerant backup are proposed for VMware vSphere one after another is standby
Part software.These backup softwares generally all only possess most basic complete backup functionality, i.e., backup all can be virtual machine magnetic every time
The backup of all data completely on disk is got off, and this backup mode can all cause great resource to network, host, storage
Consumption.Therefore somewhat more senior backup software will provide differential backup function, i.e., after once back up completely,
Each backup afterwards all can only back up the data block that change is produced in magnetic disk of virtual machine, so be considerably reduced money
Source is lost.But, differential backup still has a fatal problem, be exactly differential backup point have to complete backup point it is extremely strong
Dependence, if backup point is damaged completely, corresponding all differences backup point all fails.
The content of the invention
The present invention is exactly in view of the deficienciess of the prior art, there is provided a kind of virtual machine synthetic backup based on VMware
Method.
To solve the above problems, the technical solution used in the present invention is as follows：
A kind of virtual machine synthesized backup method based on VMware, comprises the following steps：
A, user are in the VMware vSphere that Web calamities are registered for management system where needing backup virtual machine are virtualized
The heart, long-range connection virtualization centre scan goes out the information of all hosts and virtual machine, and above- mentioned information is updated to database,
It is that following establishment backup tasks and startup task provide essential information；
B, establishment backup tasks, selection needs the virtual machine backed up, by backup tasks information updating to database；
C, the pattern startup backup tasks to back up completely, the virtual machine business of production environment is not interrupted, previous step is selected
All data of virtual disk for the virtual machine for needing to back up are selected by the way that in network transmission to backup server, generation is backed up completely
Point；
D, the pattern startup backup tasks with synthetic backup, the virtual machine business of production environment are not interrupted, by standby virtual
The virtual disk of machine is produced within from the complete backup Startup time of previous step to this synthetic backup Startup time this period
Raw delta data block is by network transmission to backup server, then by certain algorithm on backup server, will
The data of the complete backup point of previous step and delta data merged block mentioned above generate synthetic backup point to together；
E, establishment recovery tasks, according to backup point in database and the information at virtualization center, select the conjunction for recovery
Into the title of backup point, the target host machine recovered and newly-built recovery virtual machine；
F, startup recovery tasks, long-range connection virtualization center, the full virtual machine information that will be included in synthetic backup point
Return to target host machine, one recovery virtual machine the same with backup virtual machine before of generation；
Described step A is described in detail below：
A1) User logs in Web calamities are for management system, into the registration virtualization center page；
A2) user fills in virtualization center IP and the username and password for remotely connecting virtualization center, the page
The message at registration virtualization center is sent to the background program on backup server, and attach virtualization center IP, user name and
The parameters such as password, the page waits backstage to return；
A3) backstage is received after the message at page registration virtualization center, the virtualization center IP of acquisition page transmission first,
Username and password parameter, sets up long-range connection according to virtualization center IP, user name can be verified during connection and close
The legitimacy of code, if username and password is correct, successful connection performs next step, and otherwise connection failure is returned to the page and noted
The result of volume failure；
A4) scanning virtualization supercentral all hosts and virtual machine information, including the IP of host, host
The information such as UUID, virtual machine UUID, virtual machine title, above- mentioned information is added in database；
A5 the connection at center) is closed and virtualized, and the information succeeded in registration is returned to the page；
A6 after) page is returned, if succeeded in registration, it is possible to start to create backup tasks；
Described step B is described in detail below：
B1) user, which enters, creates the backup tasks page, and selection needs the virtual machine backed up, and the page is on backup server
Background program sends the message for creating backup tasks, waits backstage to return；
B2) backstage is received after the message of page creation backup tasks, the mission bit stream that the page is passed over is obtained, by task
Information updating returns to the page to database and creates Mission Success；
B3 after) page is returned, if creating Mission Success, it is possible to start to start backup tasks；
Described step C is described in detail below：
C1) user, which enters, starts the backup tasks page, and selection task is simultaneously started with the pattern that backs up completely, and the page is to backup
Background program on server sends the message for starting backup tasks, waits backstage to return；
C2) backstage is received after the message that the page starts backup tasks, is obtained start-up mode and detailed mission bit stream, is successfully entered
Row next step, otherwise returns to the mistake of task abnormity to the page；
C3 whether task) is judged in operation, if task has been run, backup failure, and return to task to the page
The mistake run, conversely, carrying out next step；
C4) set up and remotely connect with virtualization center, if successful connection, next step is carried out, otherwise backup failure, to page
Face returns to the mistake of connection virtualization center failure；
C5 it is operation) to update task status, and snapshot is created to magnetic disk of virtual machine, creates snapshot success, carries out next step, no
The connection at center is then closed and virtualizes, backup failure sets task status to malfunction, returned to the page and create disappearing for snapshot failure
Breath；
C6 the backup directory of storage backup point) is created on backup server, first the configuration information of virtual machine is transmitted
To backup directory, the backup mesh that all deblockings on the disk to virtual machine are transferred to backup server successively is then circulated
Record, often transfers a block, judge user whether terminated task, if it is, into next step；Otherwise continue to transmit next magnetic
Disk block, until all Disk data backups are completed, subsequently into C8)；
C7 task status) is updated to stop, and the backup directory of backup server is deleted, into next step；
C8) retain magnetic disk of virtual machine snapshot, close and virtualize the connection at center, if user stops task, to page
Face returns to the message for stopping Mission Success, is otherwise returned to the page and backs up successful message；
Described step D is described in detail below：
D1) with C1) arrive C5) the step of it is consistent；
D2 the backup directory of storage backup point) is created on backup server, first the configuration information of virtual machine is transmitted
To backup directory, then circulate and the disk of virtual machine is proceeded as follows：Use step C) in completely backup when stay
Snapshot and the snapshot that creates of current synthetic backup contrasted, obtain out within this period the virtual disk and produce data change
All data blocks changed, these data blocks by under network transmission to backup directory, phase under the complete backup point before finding
This two parts data is locally merged into a Disk Backup by the Disk Backup data answered by special algorithm in backup server
File, handled in above process a data block then judge user whether terminated task, if it is, into next step；It is no
Then continue to transmit next disk block, until all Disk data backups are completed, subsequently into D4)；
D3 task status) is updated to stop, and the backup directory of backup server is deleted, into next step；
D4 the magnetic disk of virtual machine snapshot of this synthetic backup establishment) is deleted, the connection at center is closed and virtualize, if
User stops task, and the message for stopping Mission Success being returned to the page, is otherwise returned to the page and backs up successful message；
Described step E is described in detail below：
E1) user is into the recovery tasks page is created, and selection needs the synthetic backup point recovered, and selects the target of recovery
Host, fills in newly-built virtual machine title, and the page sends the message for creating recovery tasks to the background program on backup server,
Backstage is waited to return；
E2) backstage is received after the message of page creation recovery tasks, the mission bit stream that the page is passed over is obtained, by task
Information updating returns to the page to database and creates recovery tasks success；
E3 after) page is returned, if creating Mission Success, it is possible to start to start recovery tasks；
Described step F is described in detail below：
F1) user, which enters, starts the recovery tasks page, and selection task simultaneously starts, and the page is to the backstage journey on backup server
Sequence sends the message for starting recovery tasks, waits backstage to return；
F2) backstage is received after the message that the page starts recovery tasks, obtains mission bit stream, obtains Mission Success progress next
Step, otherwise returns to the non-existent mistake of task to the page；
F3 whether task) is judged in operation, if task has been run, recovers failure, and return to task to the page
The mistake run, conversely, carrying out next step；
F4 long-range connection is set up at the virtualization center) and where target host machine, if successful connection, carries out next step,
Otherwise recover failure, the mistake of connection virtualization center failure is returned to the page, connected mode is set up similar with step C4；
F5 it is operation) to update task status, according to the configuration information of virtual machine under synthetic backup point catalogue in target host
The virtual machine of recovery is created that on machine, the data in virtual disk backup file under synthetic backup point catalogue is read, then passes through
Network transmission is to target host machine, then in target host machine is written to the respective virtual disk file for recovering virtual machine；
F6) completed when the file of all virtual disks writes, virtual machine is successfully recovered, and what back page was successfully recovered disappears
Breath.
Compared with prior art, implementation result of the invention is as follows by the present invention：
A kind of virtual machine synthesized backup method based on VMware that the present invention is provided, using backup mode is merged, is entering
After row is once backed up completely, each backup afterwards is all only needed to from the data block of production environment virtual machine reading change to backup
Server, then in the merging process of the enterprising row data of backup server, is substantially reducing money of the backup procedure to production environment
While source is consumed, the synthetic backup point for possessing independent completion recovery capability is generated, the low of backup software is greatly improved
Consume high reliability；
Resource consumption of the backup procedure to production environment can be greatly reduced, and ensure that the backup point of generation has independently
Recover the ability of a full virtual machine.
Advantage of the differential backup to the low consumption of resources of production environment can be had concurrently, while again can as backup completely
Generate an independent, full backup point that is being not need to rely on any other backup point.Minimum shadow is being produced to production environment
Superpower safety guarantee is provided while sound again, there is great meaning for the disaster-tolerant backup reliability for lifting VMware virtual machines
Justice.
Brief description of the drawings
Fig. 1 represents the system architecture diagram for the virtual machine synthesized backup method based on VMware that the present invention is provided.
Fig. 2 represents the backup functionality flow chart for the virtual machine synthesized backup method based on VMware that the present invention is provided.
Fig. 3 represents the recovery functional flow diagram for the virtual machine synthesized backup method based on VMware that the present invention is provided.
Embodiment
Illustrate present disclosure with accompanying drawing below in conjunction with specific embodiments.
Also referring to Fig. 1 to Fig. 3, wherein Fig. 1 represents the virtual machine synthetic backup based on VMware that the present invention is provided
The system architecture diagram of method.Fig. 2 represents the backup functionality for the virtual machine synthesized backup method based on VMware that the present invention is provided
Flow chart.Fig. 3 represents the recovery functional flow diagram for the virtual machine synthesized backup method based on VMware that the present invention is provided.
A kind of virtual machine synthesized backup method based on VMware, comprises the following steps：
A, user are in the VMware vSphere that Web calamities are registered for management system where needing backup virtual machine are virtualized
The heart, long-range connection virtualization centre scan goes out the information of all hosts and virtual machine, and above- mentioned information is updated to database,
It is that following establishment backup tasks and startup task provide essential information；
B, establishment backup tasks, selection needs the virtual machine backed up, by backup tasks information updating to database；
C, the pattern startup backup tasks to back up completely, the virtual machine business of production environment is not interrupted, previous step is selected
All data of virtual disk for the virtual machine for needing to back up are selected by the way that in network transmission to backup server, generation is backed up completely
Point；
D, the pattern startup backup tasks with synthetic backup, the virtual machine business of production environment are not interrupted, by standby virtual
The virtual disk of machine is produced within from the complete backup Startup time of previous step to this synthetic backup Startup time this period
Raw delta data block is by network transmission to backup server, then by certain algorithm on backup server, will
The data of the complete backup point of previous step and delta data merged block mentioned above generate synthetic backup point to together；
E, establishment recovery tasks, according to backup point in database and the information at virtualization center, select the conjunction for recovery
Into the title of backup point, the target host machine recovered and newly-built recovery virtual machine；
F, startup recovery tasks, long-range connection virtualization center, the full virtual machine information that will be included in synthetic backup point
Return to target host machine, one recovery virtual machine the same with backup virtual machine before of generation；
Described step A is described in detail below：
A1) User logs in Web calamities are for management system, into the registration virtualization center page；
A2) user fills in virtualization center IP and the username and password for remotely connecting virtualization center, the page
The message at registration virtualization center is sent to the background program on backup server, and attach virtualization center IP, user name and
The parameters such as password, the page waits backstage to return；
A3) backstage is received after the message at page registration virtualization center, the virtualization center IP of acquisition page transmission first,
Username and password parameter, sets up long-range connection according to virtualization center IP, user name can be verified during connection and close
The legitimacy of code, if username and password is correct, successful connection performs next step, and otherwise connection failure is returned to the page and noted
The result of volume failure；
A4) scanning virtualization supercentral all hosts and virtual machine information, including the IP of host, host
The information such as UUID, virtual machine UUID, virtual machine title, above- mentioned information is added in database；
A5 the connection at center) is closed and virtualized, and the information succeeded in registration is returned to the page；
A6 after) page is returned, if succeeded in registration, it is possible to start to create backup tasks；
Described step B is described in detail below：
B1) user, which enters, creates the backup tasks page, and selection needs the virtual machine backed up, and the page is on backup server
Background program sends the message for creating backup tasks, waits backstage to return；
B2) backstage is received after the message of page creation backup tasks, the mission bit stream that the page is passed over is obtained, by task
Information updating returns to the page to database and creates Mission Success；
B3 after) page is returned, if creating Mission Success, it is possible to start to start backup tasks；
Described step C is described in detail below：
C1) user, which enters, starts the backup tasks page, and selection task is simultaneously started with the pattern that backs up completely, and the page is to backup
Background program on server sends the message for starting backup tasks, waits backstage to return；
C2) backstage is received after the message that the page starts backup tasks, is obtained start-up mode and detailed mission bit stream, is successfully entered
Row next step, otherwise returns to the mistake of task abnormity to the page；
C3 whether task) is judged in operation, if task has been run, backup failure, and return to task to the page
The mistake run, conversely, carrying out next step；
C4) set up and remotely connect with virtualization center, if successful connection, next step is carried out, otherwise backup failure, to page
Face returns to the mistake of connection virtualization center failure；
C5 it is operation) to update task status, and snapshot is created to magnetic disk of virtual machine, creates snapshot success, carries out next step, no
The connection at center is then closed and virtualizes, backup failure sets task status to malfunction, returned to the page and create disappearing for snapshot failure
Breath；
C6 the backup directory of storage backup point) is created on backup server, first the configuration information of virtual machine is transmitted
To backup directory, the backup mesh that all deblockings on the disk to virtual machine are transferred to backup server successively is then circulated
Record, often transfers a block, judge user whether terminated task, if it is, into next step；Otherwise continue to transmit next magnetic
Disk block, until all Disk data backups are completed, subsequently into C8)；
C7 task status) is updated to stop, and the backup directory of backup server is deleted, into next step；
C8) retain magnetic disk of virtual machine snapshot, close and virtualize the connection at center, if user stops task, to page
Face returns to the message for stopping Mission Success, is otherwise returned to the page and backs up successful message；
Described step D is described in detail below：
D1) with C1) arrive C5) the step of it is consistent；
D2 the backup directory of storage backup point) is created on backup server, first the configuration information of virtual machine is transmitted
To backup directory, then circulate and the disk of virtual machine is proceeded as follows：Use step C) in completely backup when stay
Snapshot and the snapshot that creates of current synthetic backup contrasted, obtain out within this period the virtual disk and produce data change
All data blocks changed, these data blocks by under network transmission to backup directory, phase under the complete backup point before finding
This two parts data is locally merged into a Disk Backup by the Disk Backup data answered by special algorithm in backup server
File, handled in above process a data block then judge user whether terminated task, if it is, into next step；It is no
Then continue to transmit next disk block, until all Disk data backups are completed, subsequently into D4)；
D3 task status) is updated to stop, and the backup directory of backup server is deleted, into next step；
D4 the magnetic disk of virtual machine snapshot of this synthetic backup establishment) is deleted, the connection at center is closed and virtualize, if
User stops task, and the message for stopping Mission Success being returned to the page, is otherwise returned to the page and backs up successful message；
Described step E is described in detail below：
E1) user is into the recovery tasks page is created, and selection needs the synthetic backup point recovered, and selects the target of recovery
Host, fills in newly-built virtual machine title, and the page sends the message for creating recovery tasks to the background program on backup server,
Backstage is waited to return；
E2) backstage is received after the message of page creation recovery tasks, the mission bit stream that the page is passed over is obtained, by task
Information updating returns to the page to database and creates recovery tasks success；
E3 after) page is returned, if creating Mission Success, it is possible to start to start recovery tasks；
Described step F is described in detail below：
F1) user, which enters, starts the recovery tasks page, and selection task simultaneously starts, and the page is to the backstage journey on backup server
Sequence sends the message for starting recovery tasks, waits backstage to return；
F2) backstage is received after the message that the page starts recovery tasks, obtains mission bit stream, obtains Mission Success progress next
Step, otherwise returns to the non-existent mistake of task to the page；
F3 whether task) is judged in operation, if task has been run, recovers failure, and return to task to the page
The mistake run, conversely, carrying out next step；
F4 long-range connection is set up at the virtualization center) and where target host machine, if successful connection, carries out next step,
Otherwise recover failure, the mistake of connection virtualization center failure is returned to the page, connected mode is set up similar with step C4；
F5 it is operation) to update task status, according to the configuration information of virtual machine under synthetic backup point catalogue in target host
The virtual machine of recovery is created that on machine, the data in virtual disk backup file under synthetic backup point catalogue is read, then passes through
Network transmission is to target host machine, then in target host machine is written to the respective virtual disk file for recovering virtual machine；
F6) completed when the file of all virtual disks writes, virtual machine is successfully recovered, and what back page was successfully recovered disappears
Breath.
Compared with prior art, implementation result of the invention is as follows by the present invention：
A kind of virtual machine synthesized backup method based on VMware that the present invention is provided, using backup mode is merged, is entering
After row is once backed up completely, each backup afterwards is all only needed to from the data block of production environment virtual machine reading change to backup
Server, then in the merging process of the enterprising row data of backup server, is substantially reducing money of the backup procedure to production environment
While source is consumed, the synthetic backup point for possessing independent completion recovery capability is generated, the low of backup software is greatly improved
Consume high reliability；
Resource consumption of the backup procedure to production environment can be greatly reduced, and ensure that the backup point of generation has independently
Recover the ability of a full virtual machine.
Advantage of the differential backup to the low consumption of resources of production environment can be had concurrently, while again can as backup completely
Generate an independent, full backup point that is being not need to rely on any other backup point.Minimum shadow is being produced to production environment
Superpower safety guarantee is provided while sound again, there is great meaning for the disaster-tolerant backup reliability for lifting VMware virtual machines
Justice.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (1)
1. a kind of virtual machine synthesized backup method based on VMware, it is characterised in that comprise the following steps：
A, user virtualize center in the VMwarevSphere that Web calamities are registered for management system where needing backup virtual machine, far
Journey connection virtualization centre scan goes out the information of all hosts and virtual machine, and above- mentioned information is updated to database, under
Face, which creates backup tasks and starts task, provides essential information；
B, establishment backup tasks, selection needs the virtual machine backed up, by backup tasks information updating to database；
C, the pattern startup backup tasks to back up completely, the virtual machine business of production environment is not interrupted, previous step is selected to need
All data of the virtual disk for the virtual machine to be backed up are by network transmission to backup server, generating complete backup point；
D, the pattern startup backup tasks with synthetic backup, the virtual machine business of production environment are not interrupted, by backup virtual machine
What virtual disk was produced within from the complete backup Startup time of previous step to this synthetic backup Startup time this period
Delta data block is by network transmission to backup server, then by certain algorithm on backup server, by upper one
The data of the complete backup point of step and delta data merged block mentioned above generate synthetic backup point to together；
E, establishment recovery tasks, according to backup point in database and the information at virtualization center, select standby for the synthesis of recovery
The title of part point, the target host machine recovered and newly-built recovery virtual machine；
F, startup recovery tasks, long-range connection virtualization center, the full virtual machine information included in synthetic backup point is recovered
To target host machine, one recovery virtual machine the same with backup virtual machine before of generation；
Described step A is described in detail below：
A1) User logs in Web calamities are for management system, into the registration virtualization center page；
A2) user fills in virtualization center IP and the username and password for remotely connecting virtualization center, and the page is to standby
Background program on part server sends the message at registration virtualization center, and attaches virtualization center IP, username and password
Etc. parameter, the page waits backstage to return；
A3) backstage is received after the message at page registration virtualization center, and virtualization center IP, the user of page transmission are obtained first
Name and cryptographic parameter, set up long-range connection according to virtualization center IP, username and password can be verified during connection
Legitimacy, if username and password is correct, successful connection performs next step, and otherwise connection failure returns to registration to the page and lost
The result lost；
A4) scanning virtualization supercentral all hosts and virtual machine information, including the IP of host, the UUID of host,
The information such as virtual machine UUID, virtual machine title, above- mentioned information is added in database；
A5 the connection at center) is closed and virtualized, and the information succeeded in registration is returned to the page；
A6 after) page is returned, if succeeded in registration, it is possible to start to create backup tasks；
Described step B is described in detail below：
B1) user, which enters, creates the backup tasks page, and selection needs the virtual machine backed up, and the page is to the backstage on backup server
Program sends the message for creating backup tasks, waits backstage to return；
B2) backstage is received after the message of page creation backup tasks, the mission bit stream that the page is passed over is obtained, by mission bit stream
Database is updated, is returned to the page and creates Mission Success；
B3 after) page is returned, if creating Mission Success, it is possible to start to start backup tasks；
Described step C is described in detail below：
C1) user, which enters, starts the backup tasks page, and selection task is simultaneously started with the pattern that backs up completely, and the page is to backup services
Background program on device sends the message for starting backup tasks, waits backstage to return；
C2) backstage is received after the message that the page starts backup tasks, obtains start-up mode and detailed mission bit stream, under successfully carrying out
One step, otherwise returns to the mistake of task abnormity to the page；
C3 whether task) is judged in operation, if task has been run, backup failure, and returned to task to the page
The mistake of operation, conversely, carrying out next step；
C4) set up and remotely connect with virtualization center, if successful connection, carry out next step, otherwise backup failure, is returned to the page
Return the mistake of connection virtualization center failure；
C5 it is operation) to update task status, and snapshot is created to magnetic disk of virtual machine, creates snapshot success, carries out next step, otherwise close
The connection at center is closed and virtualizes, backup failure sets task status to malfunction, returned to the page and create snapshot failure；
C6 the backup directory of storage backup point) is created on backup server, is first transferred to the configuration information of virtual machine standby
Part catalogue, then circulates the backup directory that all deblockings on the disk to virtual machine are transferred to backup server successively,
Often transfer a block, judge user whether terminated task, if it is, into next step；Otherwise continue to transmit next disk
Block, until all Disk data backups are completed, subsequently into C8)；
C7 task status) is updated to stop, and the backup directory of backup server is deleted, into next step；
C8) retain magnetic disk of virtual machine snapshot, close and virtualize the connection at center, if user stops task, returned to the page
The message for stopping Mission Success being returned, is otherwise returned to the page and backs up successful message；
Described step D is described in detail below：
D1) with C1) arrive C5) the step of it is consistent；
D2 the backup directory of storage backup point) is created on backup server, is first transferred to the configuration information of virtual machine standby
Part catalogue, then circulates and the disk of virtual machine is proceeded as follows：Use step C) in completely backup when stay it is fast
Contrasted according to the snapshot created with current synthetic backup, obtain out the virtual disk within this period and produce data variation
All data blocks, it is corresponding under the complete backup point before finding these data blocks by under network transmission to backup directory
This two parts data is locally merged into a Disk Backup text by Disk Backup data by special algorithm in backup server
Part, handled in above process a data block then judge user whether terminated task, if it is, into next step；Otherwise
Continue to transmit next disk block, until all Disk data backups are completed, subsequently into D4)；
D3 task status) is updated to stop, and the backup directory of backup server is deleted, into next step；
D4 the magnetic disk of virtual machine snapshot of this synthetic backup establishment) is deleted, the connection at center is closed and virtualize, if user
Stopping task, the message for stopping Mission Success being returned to the page, is otherwise returned to the page and is backed up successful message；
Described step E is described in detail below：
E1) user is into the recovery tasks page is created, and selection needs the synthetic backup point recovered, and selects the target host of recovery
Machine, fills in newly-built virtual machine title, and the page sends the message for creating recovery tasks to the background program on backup server, waits
Backstage is returned；
E2) backstage is received after the message of page creation recovery tasks, the mission bit stream that the page is passed over is obtained, by mission bit stream
Database is updated, is returned to the page and creates recovery tasks success；
E3 after) page is returned, if creating Mission Success, it is possible to start to start recovery tasks；
Described step F is described in detail below：
F1) user, which enters, starts the recovery tasks page, and selection task simultaneously starts, and the page is sent out to the background program on backup server
The message for starting recovery tasks is sent, waits backstage to return；
F2) backstage is received after the message that the page starts recovery tasks, obtains mission bit stream, is obtained Mission Success and is carried out next step,
Otherwise the non-existent mistake of task is returned to the page；
F3 whether task) is judged in operation, if task has been run, recovers failure, and returned to task to the page
The mistake of operation, conversely, carrying out next step；
F4 long-range connection is set up at the virtualization center) and where target host machine, if successful connection, carries out next step, otherwise
Recover failure, the mistake of connection virtualization center failure is returned to the page, connected mode is set up similar with step C4；
F5 it is operation) to update task status, according to the configuration information of virtual machine under synthetic backup point catalogue on target host machine
The virtual machine of recovery is created that, the data in virtual disk backup file under synthetic backup point catalogue is read, then passes through network
Target host machine is transferred to, then in target host machine is written to the respective virtual disk file for recovering virtual machine；
F6) completed when the file of all virtual disks writes, virtual machine is successfully recovered, the message that back page is successfully recovered.
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