CN111158957A - Virtual machine file recovery method, system, device and storage medium - Google Patents
Virtual machine file recovery method, system, device and storage medium Download PDFInfo
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- 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
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- G06—COMPUTING; CALCULATING OR COUNTING
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- 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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- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/18—File system types
- G06F16/182—Distributed file systems
- G06F16/184—Distributed file systems implemented as replicated file system
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
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Abstract
The invention discloses a method, a system, a device and a storage medium for recovering a virtual machine file, wherein the method comprises the following steps: constructing a virtual backup subsystem and generating a source backup point based on the virtual backup subsystem; acquiring disk set information according to a configuration file of a source backup point, and performing equipment mapping on the disk set to acquire partition information and file system information to obtain a file set; and restoring the selected restored files in the file set according to a preset restoring mode. The system comprises: the system comprises a construction module, a disk module and a recovery module. The device comprises a memory and a processor for executing the virtual machine file recovery method. By using the invention, the applicability of cross-system file recovery can be enhanced. The method, the system, the device and the storage medium for recovering the file of the virtual machine can be widely applied to the field of file recovery.
Description
Technical Field
The present invention relates to the field of file recovery, and in particular, to a method, a system, an apparatus, and a storage medium for recovering a file of a virtual machine.
Background
In most system services, a file recovery service is provided, but the current file recovery service is more realized by using a disk operation interface provided by a backup target virtualization platform, and cannot achieve universal backup point analysis, mount use and mount management, so that the file recovery service has low support for file recovery of backup points across virtual platforms and operating system types, and is not beneficial to saving the cost for establishing a system by enterprises.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a method, a system, a device and a storage medium for file recovery of a virtual machine, which can implement cross-virtual platform and cross-operating system operations of a file recovery service.
The first technical scheme adopted by the invention is as follows: a method for restoring a file of a virtual machine comprises the following steps:
constructing a virtual backup subsystem and generating a source backup point based on the virtual backup subsystem;
acquiring disk set information according to a configuration file of a source backup point, and performing equipment mapping on the disk set to acquire partition information and file system information to obtain a file set;
restoring the selected and restored files in the file set according to a preset restoring mode
Further, the step of constructing a virtual backup subsystem and generating a source backup point based on the virtual backup subsystem specifically includes:
registering a storage server and a virtualization center;
and performing backup through the virtualization center, generating a source standby point at the corresponding storage node after the backup is completed, and bringing the source standby point into the control node for management.
Further, the step of performing backup through the virtualization center, after the backup is completed, generating a source backup point at the corresponding storage node and incorporating the source backup point into the control node for management includes:
creating a snapshot for the virtual machine of the preselected backup through a virtualization platform interface;
reading disk data in the snapshot and obtaining configuration information of virtual machine hardware to obtain stored data;
and transmitting the storage data to a storage server and backing up the storage data, and generating a source backup point and bringing the source backup point into the control node for management after the backup is finished.
Further, a step of obtaining disk set information according to a configuration file of a source backup point, and performing device mapping on the disk set to obtain partition information and file system information to obtain a file set, which specifically includes:
analyzing a configuration file of a source backup point to obtain disk information, obtaining a disk set and carrying out equipment mapping;
scanning the disk set to acquire a partition set and corresponding file system information;
filtering the partition set to obtain an effective partition set;
and mounting the effective partition set to obtain a file set.
Further, the preset recovery mode includes automatic recovery and manual recovery, and the recovering the files in the file list according to the preset recovery mode specifically includes:
the preset recovery mode is automatic recovery, a file recovery agent is installed on a preselected recovery target machine, and file analysis is carried out according to a selected source backup point to generate a corresponding recovery file set;
the preset recovery mode is manual recovery, a file set compression package is created according to the selected source standby point, and a download link is generated;
the recovery target machine is a machine that supports running file recovery.
Further, the source backup point can ensure that the real-time disk data of the source backup point is consistent with the real-time disk data of the backup target virtual machine according to requirements.
Further, the recovery of the file selected for recovery in the file set further includes cleaning the mount usage of the source standby point, removing the mapping of all the devices and performing the mount removal on the mount point.
The second technical scheme adopted by the invention is as follows: a virtual machine file recovery system, comprising:
the construction module is used for constructing a virtual backup subsystem and generating a source backup point based on the virtual backup subsystem;
the disk module is used for acquiring disk set information according to the source and standby points and scanning files of the disk sets to obtain a file list;
and the recovery module is used for recovering the files in the file list according to a preset recovery mode.
The third technical scheme adopted by the invention is as follows: a virtual machine file recovery apparatus, comprising:
at least one processor;
at least one memory for storing at least one program;
when the at least one program is executed by the at least one processor, the at least one program causes the at least one processor to implement a virtual machine file recovery method as described above.
The fourth technical scheme adopted by the invention is as follows: a storage medium having stored therein instructions executable by a processor, the storage medium comprising: the processor-executable instructions, when executed by the processor, are for implementing a virtual machine file recovery method as described above.
The method, the system, the device and the storage medium have the advantages that: according to the invention, through self-construction of the virtual system and the source and standby points, file-level recovery operation can be realized in the virtual system, so that the applicability of cross-system operation of file recovery service is improved, a disk file list is obtained and displayed through the source and standby points, a user can find a single file or a set to be recovered, and the user can conveniently perform complicated recovery configuration operation during file recovery through a preset recovery mode.
Drawings
FIG. 1 is a flowchart illustrating the steps of a method for restoring files in a virtual machine according to the present invention;
fig. 2 is a block diagram of a virtual machine file recovery system according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments. The step numbers in the following embodiments are provided only for convenience of illustration, the order between the steps is not limited at all, and the execution order of each step in the embodiments can be adapted according to the understanding of those skilled in the art.
In some scenarios requiring backup and file recovery, often because the operating system of the virtual machine is not consistent with the operating system of the target recovery virtual machine or the virtualization platform type of the backup virtual machine is not consistent with the virtualization platform type of the target recovery virtual machine, or because the backup virtualization platform limits that the backup virtual machine cannot be recovered to the entity recovery target machine, the file of the source backup point generated by the backup virtual machine cannot be recovered to any recovery target machine, so that the requirement of file recovery on the virtual environment is high, which is not beneficial to the backup recovery of the file by the user.
As shown in fig. 1, the present invention provides a method for restoring a file of a virtual machine, including the following steps:
s101, constructing a virtual backup subsystem and generating a source backup point based on the virtual backup subsystem.
Specifically, different virtualization platforms can be backed up in the same backup subsystem to generate source backup points, and the source backup points are uniformly managed by a control node, the virtual backup subsystem comprises a backup control server, a storage server and a virtualization center, the control server provides a web operable interface, a virtual machine of the virtualization center is designated to be backed up, the source backup points are generated in the storage node and are managed by the control node, and the used source backup points can still be used by other recovery modes including whole machine mount recovery, whole machine recovery and the like when being recovered and used by a file level.
S102, acquiring disk set information according to a configuration file of a source backup point, and performing equipment mapping on a disk set to acquire partition information and file system information to obtain a file set;
specifically, disk set information is obtained according to a source backup point configuration file, backup _ file processing is performed on the disk set information to generate a read-only disk set, device mapping is performed according to the disk set to obtain partition information and file system information, an invalid partition set is filtered, all valid partitions are mounted, and a file set is obtained.
S103, restoring the selected restored files in the file set according to a preset restoring mode.
Specifically, for source and standby points generated by different virtualization platforms, the difference of the structures and the types of the disk files is ignored, partition set acquisition and file set acquisition are realized in a unified mode, a user browses a file list and selects a file required to be recovered, the preset recovery mode comprises an automatic recovery mode and a manual recovery mode, the data of the disk file of the source backup point is analyzed, the information pair of the disk set is obtained, performing equipment mapping processing on the disk file to generate disk set mapping and obtain partition information of the disk set, the virtualization type matching and the operating system type matching of the source standby point and the recovery target virtual machine do not need to be carried out on the recovery, the source standby point and the recovery target virtual machine can be randomly recovered to a heterogeneous virtualization platform and a heterogeneous operating system, for a source standby point to resume use, the file level is not required to resume exclusive use, and the source standby point can also be used for other types of recovery when the file level resumes use.
As a preferred embodiment of the method, the step of constructing the virtual backup subsystem and generating the source backup point based on the virtual backup subsystem specifically further includes:
registering a storage server and a virtualization center;
and performing backup through the virtualization center, generating a source standby point at the corresponding storage node after the backup is completed, and bringing the source standby point into the control node for management.
Specifically, the nodes required by the virtual backup subsystem comprise a backup control server, a storage server and a backup target virtualization center, and the construction steps specifically comprise the steps of installing a backup control system program on the backup control server, installing a database, installing the storage control system program on the storage server, registering the storage server and the virtualization center to the control server, providing a web operable interface by the control server, designating a virtual machine of the virtualization center for backup, generating a source backup point on the storage node, and introducing the source backup point into the control node for management.
As a preferred embodiment of the method, the step of performing backup through the virtualization center, generating a source-standby point at the corresponding storage node after the backup is completed, and incorporating the source-standby point into the control node for management specifically includes:
creating a snapshot for the virtual machine of the preselected backup through a virtualization platform interface;
reading disk data in the snapshot and obtaining configuration information of virtual machine hardware to obtain stored data;
and transmitting the storage data to a storage server and backing up the storage data, merging the backed up differential data with the fully-backed up source and standby points to obtain the latest source and standby points when the differential data or the incremental data are backed up, and generating the source and standby points and bringing the source and standby points into the control node for management after the backup is finished.
Specifically, a snapshot is created for a target virtual machine through an API (application programming interface) of a virtualization platform or directly by using a platform management tool, the hardware configuration information of the virtual machine comprises virtual machine disk and network card information, the virtual machine disk and network card information is written into a virtual machine configuration information file, disk data and configuration file data are read and transmitted to a storage server, and the disk data and the configuration file data are organized on the storage server as virtual machine backup points, wherein the virtual machine configuration information is organized into configuration files, and the disk data are organized into virtual disk files in a corresponding virtualization disk format.
Further, as a preferred embodiment of the method, the step of obtaining information of a disk set according to a configuration file of a source backup point, and performing device mapping on the disk set to obtain partition information and file system information to obtain a file set specifically includes:
analyzing a configuration file of a source backup point to obtain disk information, obtaining a disk set and carrying out equipment mapping;
scanning the disk set to acquire a partition set and corresponding file system information;
filtering the partition set to obtain an effective partition set;
and mounting the effective partition set to obtain a file set.
Specifically, the data of the disk file in the source backup point is analyzed, the information of the disk set is obtained, the device mapping processing is performed on the disk file, the disk set mapping is generated, the mapped disk set is only read, the disk file of the source backup point is mapped and mounted, but the backup point is not opened exclusively but is opened only read, so that the backup point can still be opened and read.
Further, as a preferred embodiment of the method, the preset recovery mode includes automatic recovery and manual recovery, and the recovering the file in the file list according to the preset recovery mode specifically includes:
the preset recovery mode is automatic recovery, a file recovery agent is installed on a preselected recovery target machine, and file analysis is carried out according to a selected source backup point to generate a corresponding recovery file set;
the preset recovery mode is manual recovery, a file set compression package is created according to the selected source standby point, and a download link is generated;
the recovery target machine is a machine that supports running file recovery.
Specifically, the recovery mode includes an automatic recovery mode for recovering a disk data file of any source backup point to any target virtual machine and a manual recovery mode for packaging a file set and generating a download link.
Further, as a preferred embodiment of the method, the source backup point can ensure that the real-time disk data of the backup target virtual machine is kept consistent according to requirements.
Further, as a preferred embodiment of the method, the recovering the file selected for recovery in the file set further includes cleaning mount usage of the source standby point, removing mapping of all devices of the source standby point, and performing unmount on the mount point.
Specifically, the source and standby points are used for generating a directory list, so that a user can select files needing to be restored, the restoration task is deleted after restoration is completed, the use of a source and standby point disk is removed, and the browsing and mounting of the files are deleted.
The specific embodiment of the invention is as follows:
constructing a virtualization system, which comprises a backup control server, a storage server and a backup target virtualization center, installing a backup control system program on the backup control server, installing a database, installing the storage control system program on the storage server, registering the storage server to the control server, managing all resources and operations of the storage server by the control server, registering the virtualization center to the control server, after registration, enabling the control server to have all operation authorities of the virtualization center through a virtualization whole machine backup function, backing up a virtual machine on a selected virtualization platform, generating source standby points, bringing the source standby points into node management, acquiring all available source standby points, displaying the source standby points in a page list mode, selecting the source standby points needing file recovery by a user, organizing the source standby points, acquiring all backup disk information, and organizing and mapping a disk, the method comprises the steps of obtaining a disk set, carrying out information obtaining and file scanning operations on the disk set, obtaining all file lists in a source standby point, providing a visual file list browsing result to a user, selecting a file or a file set needing to be restored and selecting a restoration mode by the user, manually restoring to generate a file set compression package and providing a download link, if the file or the file set needs to be restored and the restoration mode is an automatic restoration mode, designating a target virtual machine by the user, automatically restoring the file to the target virtual machine by a system, deleting a restoration task after restoration is finished, removing the disk of the source standby point, and deleting file mounting.
As shown in fig. 2, a virtual machine file recovery system includes:
the construction module is used for constructing a virtual backup subsystem and generating a source backup point based on the virtual backup subsystem;
the disk module is used for acquiring disk set information according to the configuration file of the source backup point, and performing equipment mapping on the disk set to acquire partition information and file system information to obtain a file set;
and the recovery module is used for recovering the selected recovered files in the file set according to a preset recovery mode.
Further as a preferred embodiment of the present system, the building module further includes:
the registration submodule is used for registering the storage server and the virtualization center;
and the source standby point submodule is used for carrying out backup through the virtualization center, generating a source standby point at the corresponding storage node after the backup is finished, and bringing the source standby point into the control node for management.
As a further preferred embodiment of the present system, the disk module further includes:
the analysis submodule is used for analyzing the configuration file of the source backup point to obtain the disk information, obtaining a disk set and carrying out equipment mapping;
the scanning submodule is used for scanning the disk set to acquire the partition set and the corresponding file system information;
the filtering submodule is used for filtering the partition set to obtain an effective partition set;
and the mounting submodule is used for mounting the effective partition set to obtain a file set.
The contents in the above method embodiments are all applicable to the present system embodiment, the functions specifically implemented by the present system embodiment are the same as those in the above method embodiment, and the beneficial effects achieved by the present system embodiment are also the same as those achieved by the above method embodiment.
A virtual machine file recovery apparatus:
at least one processor;
at least one memory for storing at least one program;
when the at least one program is executed by the at least one processor, the at least one program causes the at least one processor to implement a virtual machine file recovery method as described above.
The contents in the above method embodiments are all applicable to the present apparatus embodiment, the functions specifically implemented by the present apparatus embodiment are the same as those in the above method embodiments, and the advantageous effects achieved by the present apparatus embodiment are also the same as those achieved by the above method embodiments.
A storage medium having stored therein instructions executable by a processor, the storage medium comprising: the processor-executable instructions, when executed by the processor, are for implementing a virtual machine file recovery method as described above.
The contents in the above method embodiments are all applicable to the present storage medium embodiment, the functions specifically implemented by the present storage medium embodiment are the same as those in the above method embodiments, and the advantageous effects achieved by the present storage medium embodiment are also the same as those achieved by the above method embodiments.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A method for restoring a file of a virtual machine is characterized by comprising the following steps:
constructing a virtual backup subsystem and generating a source backup point based on the virtual backup subsystem;
acquiring disk set information according to a configuration file of a source backup point, and performing equipment mapping on the disk set to acquire partition information and file system information to obtain a file set;
and restoring the selected restored files in the file set according to a preset restoring mode.
2. The method for restoring a file of a virtual machine according to claim 1, wherein the step of constructing a virtual backup subsystem and generating a source backup point based on the virtual backup subsystem further includes:
registering a storage server and a virtualization center;
and performing backup through the virtualization center, generating a source standby point at the corresponding storage node after the backup is completed, and bringing the source standby point into the control node for management.
3. The method for restoring a file in a virtual machine according to claim 2, wherein the step of performing backup through a virtualization center, generating a source-standby point in a corresponding storage node after the backup is completed, and incorporating the source-standby point into a control node for management includes:
creating a snapshot for the virtual machine of the preselected backup through a virtualization platform interface;
reading disk data in the snapshot and obtaining configuration information of virtual machine hardware to obtain stored data;
and transmitting the storage data to a storage server and backing up the storage data, and generating a source backup point and bringing the source backup point into the control node for management after the backup is finished.
4. The method for restoring a file of a virtual machine according to claim 1, wherein the step of obtaining information of a disk set according to a configuration file of a source-standby point, and performing device mapping on the disk set to obtain partition information and file system information to obtain a file set specifically includes:
analyzing a configuration file of a source backup point to obtain disk information, obtaining a disk set and carrying out equipment mapping;
scanning the disk set to acquire a partition set and corresponding file system information;
filtering the partition set to obtain an effective partition set;
and mounting the effective partition set to obtain a file set.
5. The method for restoring the file of the virtual machine according to claim 4, wherein the preset restoring modes include automatic restoring and manual restoring, and restoring the selected restored file in the file set according to the preset restoring mode specifically includes:
the preset recovery mode is automatic recovery, a file recovery agent is installed on a preselected recovery target machine, and file analysis is carried out according to a selected source backup point to generate a corresponding recovery file set;
the preset recovery mode is manual recovery, a file set compression package is created according to the selected source standby point, and a download link is generated;
the recovery target machine is a machine that supports running file recovery.
6. The method for restoring the file of the virtual machine according to claim 1, wherein: the source backup point can ensure that the real-time disk data of the backup target virtual machine is kept consistent according to the requirement.
7. The method for restoring the file of the virtual machine according to claim 4, wherein: the recovery of the file selected and recovered in the file set further comprises the steps of cleaning the mounting use of the source standby point, removing the mapping of all the devices of the source standby point and removing the mounting of the mounting point.
8. A virtual machine file recovery system, comprising:
the construction module is used for constructing a virtual backup subsystem and generating a source backup point based on the virtual backup subsystem;
the disk module is used for acquiring disk set information according to the configuration file of the source backup point, and performing equipment mapping on the disk set to acquire partition information and file system information to obtain a file set;
and the recovery module is used for recovering the selected recovered files in the file set according to a preset recovery mode.
9. The utility model provides a virtual machine file recovery device which characterized in that still includes:
at least one processor;
at least one memory for storing at least one program;
when executed by the at least one processor, cause the at least one processor to implement a virtual machine file recovery method as claimed in any one of claims 1 to 7.
10. A storage medium having stored therein instructions executable by a processor, the storage medium comprising: the processor-executable instructions, when executed by a processor, are for implementing a virtual machine file recovery method as claimed in any one of claims 1 to 7.
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| CN112559255A (en) * | 2020-12-25 | 2021-03-26 | 广州鼎甲计算机科技有限公司 | Method, system, device and storage medium for testing file mount recovery |
| CN114924914A (en) * | 2022-05-31 | 2022-08-19 | 广州鼎甲计算机科技有限公司 | Disk partition table information backup and recovery method and system |
| CN115686932A (en) * | 2022-09-07 | 2023-02-03 | 安徽鼎甲计算机科技有限公司 | Backup set file recovery method and device and computer equipment |
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| CN115686932A (en) * | 2022-09-07 | 2023-02-03 | 安徽鼎甲计算机科技有限公司 | Backup set file recovery method and device and computer equipment |
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