CN110941508B - Post-disaster recovery system, method and device for virtualization system and readable storage medium - Google Patents
Post-disaster recovery system, method and device for virtualization system and readable storage medium Download PDFInfo
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- CN110941508B CN110941508B CN201911088627.6A CN201911088627A CN110941508B CN 110941508 B CN110941508 B CN 110941508B CN 201911088627 A CN201911088627 A CN 201911088627A CN 110941508 B CN110941508 B CN 110941508B
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- 238000011084 recovery Methods 0.000 title claims abstract description 50
- 230000000875 corresponding Effects 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims description 13
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001960 triggered Effects 0.000 description 2
- 241000720945 Hosta Species 0.000 description 1
- 230000004083 survival Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING; 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
- G06F11/1489—Generic software techniques for error detection or fault masking through recovery blocks
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- G—PHYSICS
- G06—COMPUTING; CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
Abstract
The application discloses a system, a method and a device for recovering a virtualized system after a disaster and a readable storage medium, which are applied to a CFS storage pool and comprise the following steps: the area determining module is used for acquiring a recording area for recording CFS storage domain information on the data disc; the information writing module is used for writing the information of the new CFS storage domain reconstructed after the disaster into the recording area; the checking and mounting module is used for checking whether the CFS storage pool is consistent with the configuration information of the corresponding host in the CFS storage domain; if so, mounting the data disk on the corresponding host to complete the recovery of the CFS storage pool. The method and the device are realized through a program, the mapping between the host and the CFS storage pool corresponding to the data disk can be quickly and accurately established, parameters in configuration files on the host do not need to be modified, the accuracy is high, the post-disaster recovery speed of the virtualization system is improved, and the time cost and the labor cost are greatly saved.
Description
Technical Field
The invention relates to the field of storage servers, in particular to a system, a method and a device for recovering a virtualized system after a disaster and a readable storage medium.
Background
With the current server virtualization technology becoming mature, the virtualization technology gradually becomes an important component in the cloud computing field, and the post-disaster recovery capability of the virtualization technology also becomes an important index for measuring the virtualization system.
The creation of a CFS (Cloud File Storage) Storage pool in a virtualization system is based on a data disk of a CFS Storage domain. When the virtualization system is severely damaged and the virtualization system is rebuilt, the data disks on the storage devices need to be remapped, and how to recover the CFS storage pool through the data disks in the storage domain in time becomes a problem to be solved urgently. The general repair method in the virtualization system is to read the header information of the data disk, check the storage domain information that the data disk belongs to before, and then modify the storage domain information recorded in the configuration files on each host one by one in the storage domain to keep the storage domain information on the data disk consistent with the information recorded on each host, after the consistency check of the configuration files, the data disk can be normally mounted, and the CFS storage pool can be normally restored for the virtual machine to use. However, when the number of hosts in the storage domain is large, the method needs to modify a plurality of configuration files on each host in sequence, which is very easy to fail in the process of checking the consistency of the configuration files, and if the problem occurs, the method needs to remove the kernel pairs on each host again, which is tedious and time-consuming in process and very easy to make mistakes; the CFS pool is also easily formatted if the data disk is used to directly create the CFS pool, resulting in loss of data on the disk.
Therefore, how to provide a solution to the above technical problems is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a system, a method, a device and a readable storage medium for recovering a virtualized system after a disaster, so as to quickly and accurately complete the recovery of the virtualized system after the disaster. The specific scheme is as follows:
a virtualization system post-disaster recovery system is applied to a CFS storage pool and comprises:
the area determining module is used for acquiring a recording area for recording CFS storage domain information on the data disc;
the information writing module is used for writing the information of the new CFS storage domain reconstructed after the disaster into the recording area;
the checking and mounting module is used for checking whether the configuration information of the CFS storage pool and the corresponding host in the CFS storage domain is consistent or not; if so, mounting the data disk on the corresponding host to complete the recovery of the CFS storage pool.
Preferably, the new CFS storage domain information includes:
and storing the name and the UUID of the domain by the CFS reconstructed after the disaster.
Preferably, the region determining module is specifically configured to:
a recording area for recording CFS storage domain information is acquired at a disk head of a data disk.
Preferably, the region determining module is specifically configured to:
searching the old CFS storage domain information at the head of a disk of the data disk to obtain a recording area for recording the CFS storage domain information;
correspondingly, the information writing module is specifically configured to:
and comparing the old CFS storage domain information with the new CFS storage domain information and performing corresponding parameter replacement so as to write the new CFS storage domain information into the recording area.
Correspondingly, the invention also discloses a post-disaster recovery method of the virtualization system, which is applied to the CFS storage pool and comprises the following steps:
acquiring a recording area for recording CFS storage domain information on a data disc;
writing the information of the new CFS storage domain reconstructed after the disaster into the recording area;
checking whether the CFS storage pool is consistent with the configuration information of the corresponding host in the CFS storage domain;
if so, mounting the data disk on the corresponding host to complete the recovery of the CFS storage pool.
Preferably, the new CFS storage domain information includes:
and storing the name and the UUID of the domain by the CFS reconstructed after the disaster.
Preferably, the process of acquiring a recording area for recording CFS storage domain information on the data disc specifically includes:
a recording area for recording CFS storage domain information is acquired at a disk head of a data disk.
Preferably, the process of acquiring a recording area for recording CFS storage domain information at a head of a disk of a data disk specifically includes:
searching the old CFS storage domain information at the head of a disk of the data disk to obtain a recording area for recording the CFS storage domain information;
correspondingly, the process of writing the new CFS storage domain information reconstructed after the disaster into the recording region specifically includes:
and comparing the old CFS storage domain information with the new CFS storage domain information and performing corresponding parameter replacement so as to write the new CFS storage domain information into the recording area.
Correspondingly, the invention also discloses a device for recovering the virtualization system after the disaster, which is applied to the CFS storage pool and comprises the following components:
a memory for storing a post-disaster recovery program;
a processor configured to implement the steps of the post-disaster recovery method of the virtualization system as any one of the above when executing the post-disaster recovery program.
Correspondingly, the invention also discloses a readable storage medium, wherein the readable storage medium is stored with a post-disaster recovery program, and the post-disaster recovery program is executed by a processor to realize the steps of the post-disaster recovery method of the virtualization system.
The invention discloses a post-disaster recovery system of a virtualization system, which is applied to a CFS storage pool and comprises the following components: the area determining module is used for acquiring a recording area for recording CFS storage domain information on the data disc; the information writing module is used for writing the information of the new CFS storage domain reconstructed after the disaster into the recording area; the checking and mounting module is used for checking whether the configuration information of the CFS storage pool and the corresponding host in the CFS storage domain is consistent or not; if so, mounting the data disk on the corresponding host to complete the recovery of the CFS storage pool. The recovery system of the virtualization system after disaster is realized by a program, a recording area on a data disk is determined by using an area determining module, and new CFS storage information is written into the recording area by using an information writing module, so that the mapping between a host and a CFS storage pool corresponding to the data disk can be quickly and accurately established, parameters in a configuration file on the host do not need to be modified, the accuracy is high, the recovery speed of the virtualization system after disaster is improved, and the time cost and the labor cost are greatly saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a structural distribution diagram of a CFS storage domain according to an embodiment of the present invention;
FIG. 2 is a block diagram of a post-disaster recovery system of a virtualization system according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating steps of a post-disaster recovery method for a virtualization system according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating steps of another post-disaster recovery method for a virtualization system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The recovery after the disaster of the current virtualization system is generally realized by modifying the storage domain information of records in a plurality of configuration files on each host in the storage domain one by one, when the number of hosts in the storage domain is large, the method needs to modify the plurality of configuration files on each host in sequence, the failure is easy to occur in the process of checking the consistency of the configuration files, and if the problem occurs, the kernel removing pair on each host needs to be removed again, the process is complex and time-consuming, and the error is easy to make. The recovery system of the virtualization system after disaster is realized by a program, a recording area on a data disk is determined by using an area determining module, and new CFS storage information is written into the recording area by using an information writing module, so that the mapping between a host and a CFS storage pool corresponding to the data disk can be quickly and accurately established, parameters in a configuration file on the host do not need to be modified, the accuracy is high, the recovery speed of the virtualization system after disaster is improved, and the time cost and the labor cost are greatly saved.
Referring to fig. 1, the CFS storage domain includes a plurality of hosts (e.g., hostA, hostB, hostC), a heartbeat disk, a data disk, and the like, wherein the heartbeat disk guarantees the survival status of each host in the storage domain, the data disk can be used to create a shared storage to implement the CFS storage pool function, and each host has a service to support the normal operation of the CFS storage domain through configuration files and parameters.
The embodiment of the invention discloses a post-disaster recovery system of a virtualization system, which is applied to a CFS storage pool, and is shown in figure 2, and comprises the following steps:
the area determining module 01 is configured to obtain a recording area on the data disc for recording CFS storage domain information;
an information writing module 02, configured to write new CFS storage domain information reconstructed after a disaster into the recording area;
the checking and mounting module 03 is configured to check whether the configuration information of the CFS storage pool and the configuration information of the host corresponding to the CFS storage domain are consistent; if so, mounting the data disk on the corresponding host to complete the recovery of the CFS storage pool. If not, the region determining module 01 or the information writing module 02 is triggered to write the new CRS storage region information again or check the error node.
Specifically, the new CFS storage domain information includes a name and a UUID (universal Unique Identifier) of the CFS storage domain reconstructed after the disaster, and the new CFS storage domain information may include other related information in addition to the name and the UUID.
Further, the region determining module is specifically configured to:
a recording area for recording CFS storage domain information is acquired at a disk head of a data disk.
Further, the region determining module is specifically configured to:
searching the old CFS storage domain information at the head of a disk of the data disk to obtain a recording area for recording the CFS storage domain information;
correspondingly, the information writing module is specifically configured to:
and comparing the old CFS storage domain information with the new CFS storage domain information and performing corresponding parameter replacement so as to write the new CFS storage domain information into the recording area.
It can be understood that, after the virtualization system is damaged, it is necessary to re-build the virtualization environment and recover the CFS storage domain information in a disaster recovery manner, where the key point is to make the CFS storage domain information in the data disk consistent with the configuration information of the host in the CFS storage domain,
the embodiment of the invention discloses a post-disaster recovery system of a virtualization system, which is applied to a CFS storage pool and comprises the following steps: the area determining module is used for acquiring a recording area for recording CFS storage domain information on the data disc; the information writing module is used for writing the information of the new CFS storage domain reconstructed after the disaster into the recording area; the checking and mounting module is used for checking whether the configuration information of the CFS storage pool and the corresponding host in the CFS storage domain is consistent or not; if so, mounting the data disk on the corresponding host to complete the recovery of the CFS storage pool. The post-disaster recovery system of the virtualization system in the embodiment of the invention is realized by a program, the area determining module is used for determining the recording area on the data disk, and the information writing module is used for writing the new CFS storage information into the recording area, so that the mapping between the host and the CFS storage pool corresponding to the data disk can be quickly and accurately established, parameters in a configuration file on the host do not need to be modified, the accuracy is high, the post-disaster recovery speed of the virtualization system is improved, and the time cost and the labor cost are greatly saved.
Correspondingly, the invention also discloses a post-disaster recovery method for the virtualization system, which is applied to the CFS storage pool, and as shown in fig. 3, the method includes:
s11: acquiring a recording area for recording CFS storage domain information on a data disc;
s12: writing the information of the new CFS storage domain reconstructed after the disaster into the recording area;
s13: checking whether the CFS storage pool is consistent with the configuration information of the corresponding host in the CFS storage domain;
s14: if so, mounting the data disk on the corresponding host to complete the recovery of the CFS storage pool.
If not, the region determining module 01 or the information writing module 02 is triggered to write the new CRS storage region information again or check the error node.
Specifically, the new CFS storage domain information includes: and storing the name and the UUID of the domain by the CFS reconstructed after the disaster.
Specifically, the process of acquiring a recording area for recording CFS storage domain information on a data disc specifically includes:
a recording area for recording CFS storage domain information is acquired at a disk head of a data disk.
The recovery system of the virtualization system after disaster is realized by a program, a recording area on a data disk is determined by using an area determining module, and new CFS storage information is written into the recording area by using an information writing module, so that the mapping between a host and a CFS storage pool corresponding to the data disk can be quickly and accurately established, parameters in a configuration file on the host do not need to be modified, the accuracy is high, the recovery speed of the virtualization system after disaster is improved, and the time cost and the labor cost are greatly saved.
Correspondingly, the invention also discloses a post-disaster recovery method for the virtualization system, which is applied to the CFS storage pool, and as shown in fig. 4, the method includes:
s21: searching the old CFS storage domain information at the head of a disk of the data disk to obtain a recording area for recording the CFS storage domain information;
s22: and comparing the old CFS storage domain information with the new CFS storage domain information and performing corresponding parameter replacement so as to write the new CFS storage domain information into the recording area.
S23: checking whether the CFS storage pool is consistent with the configuration information of the corresponding host in the CFS storage domain;
s24: if so, mounting the data disk on the corresponding host to complete the recovery of the CFS storage pool.
It can be understood that, under the condition that the change of the CFS storage domain information is not large before and after, the changed parameters can be replaced without directly overwriting the write-in recording area, thereby saving more write-in time.
Correspondingly, the invention also discloses a post-disaster recovery device of the virtualization system, which is applied to the CFS storage pool and comprises a processor and a memory; wherein the processor implements the following steps when executing the post-disaster recovery program stored in the memory:
acquiring a recording area for recording CFS storage domain information on a data disc;
writing the information of the new CFS storage domain reconstructed after the disaster into the recording area;
checking whether the CFS storage pool is consistent with the configuration information of the corresponding host in the CFS storage domain;
if so, mounting the data disk on the corresponding host to complete the recovery of the CFS storage pool.
The post-disaster recovery system of the virtualization system in the embodiment of the invention is realized by a program, the area determining module is used for determining the recording area on the data disk, and the information writing module is used for writing the new CFS storage information into the recording area, so that the mapping between the host and the CFS storage pool corresponding to the data disk can be quickly and accurately established, parameters in a configuration file on the host do not need to be modified, the accuracy is high, the post-disaster recovery speed of the virtualization system is improved, and the time cost and the labor cost are greatly saved.
In some specific embodiments, the new CFS storage domain information includes:
and storing the name and the UUID of the domain by the CFS reconstructed after the disaster.
In some specific embodiments, when the processor executes the computer subprogram stored in the memory, the following steps may be specifically implemented:
a recording area for recording CFS storage domain information is acquired at a disk head of a data disk.
In some specific embodiments, when the processor executes the computer subprogram stored in the memory, the following steps may be specifically implemented:
searching the old CFS storage domain information at the head of a disk of the data disk to obtain a recording area for recording the CFS storage domain information;
in some specific embodiments, when the processor executes the computer subprogram stored in the memory, the following steps may be specifically implemented:
and comparing the old CFS storage domain information with the new CFS storage domain information and performing corresponding parameter replacement so as to write the new CFS storage domain information into the recording area.
Further, embodiments of the present application also disclose a computer-readable storage medium, where the computer-readable storage medium includes Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable hard disk, CD-ROM, or any other form of storage medium known in the art. A computer readable storage medium having stored therein a post-disaster recovery program, the post-disaster recovery program when executed by a processor implementing the steps of:
acquiring a recording area for recording CFS storage domain information on a data disc;
writing the information of the new CFS storage domain reconstructed after the disaster into the recording area;
checking whether the CFS storage pool is consistent with the configuration information of the corresponding host in the CFS storage domain;
if so, mounting the data disk on the corresponding host to complete the recovery of the CFS storage pool.
The post-disaster recovery system of the virtualization system in the embodiment of the invention is realized by a program, the area determining module is used for determining the recording area on the data disk, and the information writing module is used for writing the new CFS storage information into the recording area, so that the mapping between the host and the CFS storage pool corresponding to the data disk can be quickly and accurately established, parameters in a configuration file on the host do not need to be modified, the accuracy is high, the post-disaster recovery speed of the virtualization system is improved, and the time cost and the labor cost are greatly saved.
In some specific embodiments, the new CFS storage domain information includes:
and storing the name and the UUID of the domain by the CFS reconstructed after the disaster.
In some specific embodiments, when executed by a processor, the computer sub-program stored in the computer-readable storage medium may specifically implement the following steps:
a recording area for recording CFS storage domain information is acquired at a disk head of a data disk.
In some specific embodiments, when executed by a processor, the computer sub-program stored in the computer-readable storage medium may specifically implement the following steps:
searching the old CFS storage domain information at the head of a disk of the data disk to obtain a recording area for recording the CFS storage domain information;
in some specific embodiments, when executed by a processor, the computer sub-program stored in the computer-readable storage medium may specifically implement the following steps:
and comparing the old CFS storage domain information with the new CFS storage domain information and performing corresponding parameter replacement so as to write the new CFS storage domain information into the recording area.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The detailed description of the system, the method, the device and the readable storage medium for recovering the virtualized system after the disaster provided by the invention is provided, and a specific example is applied in the detailed description to explain the principle and the implementation of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (6)
1. The utility model provides a virtualization system recovery system after disaster which is applied to CFS storage pool, includes:
the area determining module is used for acquiring a recording area for recording CFS storage domain information on the data disc;
the information writing module is used for writing the information of the new CFS storage domain reconstructed after the disaster into the recording area;
the checking and mounting module is used for checking whether the configuration information of the CFS storage pool and the corresponding host in the CFS storage domain is consistent or not; if so, mounting the data disk on a corresponding host to complete the recovery of the CFS storage pool;
the region determination module is specifically configured to:
searching the old CFS storage domain information at the head of a disk of the data disk to obtain a recording area for recording the CFS storage domain information;
correspondingly, the information writing module is specifically configured to:
and comparing the old CFS storage domain information with the new CFS storage domain information and performing corresponding parameter replacement so as to write the new CFS storage domain information into the recording area.
2. The virtualization system post-disaster recovery system of claim 1, wherein the new CFS storage domain information comprises:
and storing the name and the UUID of the domain by the CFS reconstructed after the disaster.
3. A method for recovering a virtualization system after disaster is characterized by being applied to a CFS storage pool and comprising the following steps:
acquiring a recording area for recording CFS storage domain information on a data disc;
writing the information of the new CFS storage domain reconstructed after the disaster into the recording area;
checking whether the CFS storage pool is consistent with the configuration information of the corresponding host in the CFS storage domain;
if so, mounting the data disk on a corresponding host to complete the recovery of the CFS storage pool;
the process of acquiring a recording area for recording CFS storage domain information on a data disc specifically includes:
the method comprises the steps that the head of a disk of a data disk searches for old CFS storage domain information to obtain a recording area for recording the CFS storage domain information;
correspondingly, the process of writing the new CFS storage domain information reconstructed after the disaster into the recording region specifically includes:
and comparing the old CFS storage domain information with the new CFS storage domain information and performing corresponding parameter replacement so as to write the new CFS storage domain information into the recording area.
4. The virtualization system post-disaster recovery method of claim 3, wherein the new CFS storage domain information comprises:
and storing the name and the UUID of the domain by the CFS reconstructed after the disaster.
5. The utility model provides a virtualization system recovery device after disaster which is applied to CFS storage pool, includes:
a memory for storing a post-disaster recovery program;
a processor configured to implement the steps of the post-disaster recovery method of the virtualization system according to any one of claims 3 to 4 when executing the post-disaster recovery program.
6. A readable storage medium having stored thereon a post-disaster recovery program, which when executed by a processor, performs the steps of the post-disaster recovery method for a virtualization system as recited in any one of claims 3 to 4.
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