CN113608683A - Cleaning method, system and related device for double-active magnetic disk - Google Patents
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- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
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Abstract
The application provides a method for cleaning a double-active disk, which comprises the following steps: receiving a disk cleaning request; scanning the double-active disk for the first time, and taking the dissimilar data between the main disk and the auxiliary disk in the double-active disk as first residual data and second residual data only stored in a database; deleting the first residual data and reporting the second residual data to the database; and scanning the double-live disk for the second time, and deleting the second residual data when the data scanned for the second time contains the data identical to the second residual data. According to the method and the device, through comparison of data reported to the database twice continuously, second residual data hidden in the database are eliminated, the usability of the double-live disk is improved, and the quantity of residual data under the cloud management platform is reduced. The application also provides a cleaning system, a computer readable storage medium and an electronic device of the double-active disk, which have the beneficial effects.
Description
Technical Field
The present application relates to the field of hard disk storage, and in particular, to a method, a system, and a related apparatus for cleaning a dual active disk.
Background
In a cloud computing management platform, a lun is usually divided to serve as a disk for a virtual machine to use, and if the lun fails in the use process of a common disk, the use of the virtual machine may be affected; research on a virtualization technology and a virtualization management platform based on a safe and reliable server discovers that the advantage of using the dual-active disk is that the dual-active disk is switched to a standby disk when a main disk fails, and the dual-active disk can be switched back at any time after the main disk is repaired, so that data of the main disk and the auxiliary disk can be synchronized when the main disk is idle, the problem that a virtual machine cannot be used due to disk failure is solved, and the dual-active disk is a disk with disaster tolerance capability compared with a common disk. The double-active disk may generate residue due to some other reasons (usually fault type) in the using process, and the cleaning operation of the disk is required, and the situation that the double-active disk is different from a common disk is that the residue is caused by the complete retention of a separate main disk or an auxiliary disk easily; the common disk can be scanned out by finding out the disk which is inconsistent with the bottom layer of the cloud management platform through disk cleaning; and the complete residual disk (residual on the cloud pipe platform) of the double-live magnetic disk cannot be scanned out, so that the cleaning action cannot be carried out through the scanning of the common magnetic disk.
The existing scheme is that when a double-active disk generates residues, whether the main disk residues or the auxiliary disk residues are inquired, then the data are deleted in a database under a cloud management platform, and then the bottom double-active disk is scanned through the scanning action of a common disk to perform the cleaning action of the residual disk.
Disclosure of Invention
The application aims to provide a cleaning method, a cleaning system, a computer readable storage medium and electronic equipment for a double-active disk, which can effectively clean residual data in the double-active disk.
In order to solve the above technical problem, the present application provides a method for cleaning a dual active disk, including:
receiving a disk cleaning request;
scanning the double-active disk for the first time, and taking the dissimilar data between the main disk and the auxiliary disk in the double-active disk as first residual data and second residual data only stored in a database;
deleting the first residual data and reporting the second residual data to the database;
and scanning the double-live disk for the second time, and deleting the second residual data when the data scanned for the second time contains the data identical to the second residual data.
Preferably, after deleting the second residual data, the method further includes:
and calling a disk cleaning instruction to delete the additional residual data corresponding to the second residual data in the computing node.
Preferably, before receiving the disk cleaning request, the method further includes:
creating a periodic cleaning task and configuring cleaning parameters of the periodic cleaning task;
and generating the disk cleaning request when the periodic cleaning task expires.
Preferably, if the scan data is different from the residual data in the preset message queue, the method further includes:
and reporting the new residual data in the scanning data to the database.
Preferably, configuring the cleaning parameters of the periodic cleaning task comprises:
configuring a cleaning period in the cleaning parameters according to the number of the double-active disks; the larger the number of the double active disks, the shorter the cleaning cycle.
Preferably, the cleaning cycle is greater than the creation time of the double-active disk.
The present application further provides a cleaning system for a double-active disk, comprising:
the request receiving module is used for receiving a disk cleaning request;
the disk scanning module is used for scanning the double-active disk for the first time, taking the different data between the main disk and the auxiliary disk in the double-active disk as first residual data and second residual data only stored in a database;
the first deleting module is used for deleting the first residual data and reporting the second residual data to the database;
and the second deleting module is used for scanning the double-live disk for the second time, and deleting the second residual data when the data scanned for the second time contains the data which is the same as the second residual data.
Preferably, the method further comprises the following steps:
and the third deleting module is used for calling a disk cleaning instruction to delete the additional residual data corresponding to the second residual data in the computing node after the second residual data is deleted.
The present application also provides a computer-readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method as set forth above.
The present application further provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method described above when calling the computer program in the memory.
The application provides a method for cleaning a double-active disk, which comprises the following steps: receiving a disk cleaning request; scanning the double-active disk for the first time, and taking the dissimilar data between the main disk and the auxiliary disk in the double-active disk as first residual data and second residual data only stored in a database; deleting the first residual data and reporting the second residual data to the database; and scanning the double-live disk for the second time, and deleting the second residual data when the data scanned for the second time contains the data identical to the second residual data.
For a double-active disk under a cloud management platform, when a disk cleaning request is received, cleaning two residual disks in data under the cloud management platform, namely taking different data between a main disk and an auxiliary disk in the double-active disk as first residual data and second residual data only stored in a database, and reporting the second residual data to the database to ensure the real-time performance of the data; and eliminating the second residual data hidden in the database by comparing the data reported to the database twice in succession. The method and the device have the advantages that the cleaning operation is carried out on the double-active disk with high disaster tolerance efficiency, the usability of the double-active disk is improved, the quantity of residual data under a cloud management platform is reduced, and the use efficiency of the double-active disk is guaranteed.
The application also provides a cleaning system, a computer readable storage medium and an electronic device for the double-active disk, which have the beneficial effects and are not repeated herein.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a method for cleaning a dual active disk according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a cleaning system for a double-active disk according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
Under the cloud management platform, the double-active disk in the double-active storage pool has better disaster tolerance capability than a common disk, but residue is generated under the condition that the system is powered off or irresistible factors occur, and the double-active disk needs to be cleaned in order to enable the system to operate better.
The double-active disk is composed of a main disk and an auxiliary disk, a layer of logic disk is packaged on the basis of the two disks, and a series of operations aiming at the double-active disk can be simultaneously operated on the main disk and the auxiliary disk once, so that the cleaning operation of the double-active disk can be converted into the cleaning operation aiming at the main disk and the auxiliary disk; the residue of the common disk cannot generate residue on the cloud management platform, only can generate residue on the computing node, the residue of the double-active disk can be generated in the database of the cloud management platform, comparison operation needs to be carried out in the data of the management platform independently, the residual disk which is not paired is found out to be cleaned, and then the residual disk is cleaned on the computing node.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for cleaning a dual active disk according to an embodiment of the present disclosure;
s101: receiving a disk cleaning request;
this step is intended to receive a disk cleaning request, and no particular limitation is imposed on how the request is received.
Preferably, before executing this step, a periodic cleaning task may be created, and cleaning parameters of the periodic cleaning task may be configured, so that a disk cleaning request is automatically generated whenever the periodic cleaning task expires. In addition, the disk cleaning request may also originate from other devices, or be generated directly according to an operation instruction of a user, and may be used as the disk cleaning request executed in this step.
S102: scanning the double-active disk for the first time, and taking the dissimilar data between the main disk and the auxiliary disk in the double-active disk as first residual data and second residual data only stored in a database;
s103: deleting the first residual data and reporting the second residual data to the database;
s104: and scanning the double-live disk for the second time, and deleting the second residual data when the data scanned for the second time contains the data identical to the second residual data.
The state after the live disk generates the residue is the lun residue generated in the database of the cloud management platform and on each computing node, and the scanning operation and cleaning can be carried out as long as the second residual data in the database of the cloud management platform is eliminated; the residue under the cloud platform can be divided into 2 types, wherein the first type is that a single main disk or auxiliary disk exists, the main disk exists under a single main storage pool, or the auxiliary disk exists under a single auxiliary storage pool, but the auxiliary disk does not exist under the double-active storage pool. That is, the first residual data is actually data existing only on the primary disk or only on the secondary disk, which does not comply with the data storage standard of the dual active disk. The other is that the data does not exist in the double-active storage pool and the primary and secondary storage pools, exists in the database in a deleting or creating mode, and is not visible to the cloud management platform. Two types of residual data scrubbing may be performed prior to the memory scrubbing action, which may take a relatively long time to scrub the memory. If the two modes are eliminated in a timing mode by adopting a timing task, the residual data of the dual-active platform is deleted in advance, so that the computing nodes can be directly issued during storage and cleaning to be deleted after comparison and scanning; the residual main disk or the auxiliary disk can be directly deleted for the first kind of data, and for the second kind of residual data, because the data volume in normal creation or deletion cannot be determined, the residual main disk or the auxiliary disk can be reported to the database, each timing task can compare the data in the database, the data exists in both comparisons, the data is considered to be the second residual data, and the data which survives for more than one period is considered to be the residual data and is deleted.
If a periodic task is adopted, the cleaning period in the cleaning parameter can be configured according to the number of the double-active disks. The larger the number of the double active disks, the shorter the cleaning cycle. It is noted that the cleaning cycle is greater than the creation time of the double live disk.
It should be noted that, in step S104, the secondary scanning of the dual active disk may be performed when the next disk cleaning request is received, or may be performed when one disk cleaning request corresponds to two scanning processes, so that complete cleaning of the residual data is already achieved.
In addition, if the scan data is different from the residual data in the preset message queue, new residual data in the scan data may be reported to the database, which means that new second residual data is generated in the two scanning processes.
After the second residual data is deleted, a disk cleaning instruction can be called to delete the additional residual data corresponding to the second residual data in the computing node.
Aiming at a double-active disk under a cloud management platform, the embodiment of the application cleans two residual disks in data under the cloud management platform when a disk cleaning request is received, namely different data between a main disk and an auxiliary disk in the double-active disk is used as first residual data, and second residual data only stored in a database, and for the second residual data, the data is reported to the database to ensure the real-time property of the data; and eliminating the second residual data hidden in the database by comparing the data reported to the database twice in succession. The method and the device have the advantages that the cleaning operation is carried out on the double-active disk with high disaster tolerance efficiency, the usability of the double-active disk is improved, the quantity of residual data under a cloud management platform is reduced, and the use efficiency of the double-active disk is guaranteed.
The following describes a cleaning system for a double-active disk provided in an embodiment of the present application, and the cleaning system described below and the cleaning method for a double-active disk described above may be referred to correspondingly.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a system for cleaning a dual active disk according to an embodiment of the present application, the system including:
a request receiving module 100, configured to receive a disk cleaning request;
a disk scanning module 200, configured to scan the dual active disk for the first time, use different data between the primary disk and the secondary disk in the dual active disk as first residual data, and store only second residual data in the database;
a first deleting module 300, configured to delete the first residual data and report the second residual data to the database;
a second deleting module 400, configured to scan the dual active disk for the second time, and delete the second residual data when it is determined that the data scanned for the second time includes data that is the same as the second residual data.
Based on the above embodiment, as a preferred embodiment, the method further includes:
and the calling module is used for deleting the additional residual data corresponding to the second residual data in the computing node by the disk cleaning instruction.
Based on the above embodiment, as a preferred embodiment, the method further includes:
the system comprises a creating module, a processing module and a processing module, wherein the creating module is used for creating a periodic cleaning task and configuring cleaning parameters of the periodic cleaning task;
and the generating module is used for generating the disk cleaning request when the periodic cleaning task expires.
Based on the above embodiment, as a preferred embodiment, the method further includes:
and the reporting module is used for reporting the new residual data in the scanning data to the database.
Based on the above embodiment, as a preferred embodiment, the creating module includes:
the configuration unit is used for configuring the cleaning period in the cleaning parameters according to the number of the double-active disks; the larger the number of the double active disks, the shorter the cleaning cycle.
The present application also provides a computer readable storage medium having stored thereon a computer program which, when executed, may implement the steps provided by the above-described embodiments. The storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The application further provides an electronic device, which may include a memory and a processor, where the memory stores a computer program, and the processor may implement the steps provided by the foregoing embodiments when calling the computer program in the memory. Of course, the electronic device may also include various network interfaces, power supplies, and the like.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system provided by the embodiment, the description is relatively simple because the system corresponds to the method provided by the embodiment, and the relevant points can be referred to the method part for description.
The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are 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.
Claims (10)
1. A method for cleaning a double-active disk, comprising:
receiving a disk cleaning request;
scanning the double-active disk for the first time, and taking the dissimilar data between the main disk and the auxiliary disk in the double-active disk as first residual data and second residual data only stored in a database;
deleting the first residual data and reporting the second residual data to the database;
and scanning the double-live disk for the second time, and deleting the second residual data when the data scanned for the second time contains the data identical to the second residual data.
2. The cleaning method according to claim 1, further comprising, after deleting the second residual data:
and calling a disk cleaning instruction to delete the additional residual data corresponding to the second residual data in the computing node.
3. The method of claim 1, wherein before receiving the disk scrubbing request, further comprising:
creating a periodic cleaning task and configuring cleaning parameters of the periodic cleaning task;
and generating the disk cleaning request when the periodic cleaning task expires.
4. The method of claim 1, further comprising, if the scan data is different from the residual data in the predetermined message queue:
and reporting the new residual data in the scanning data to the database.
5. The cleaning method of claim 3, wherein configuring the cleaning parameters of the periodic cleaning task comprises:
configuring a cleaning period in the cleaning parameters according to the number of the double-active disks; the larger the number of the double active disks, the shorter the cleaning cycle.
6. A method of cleaning as claimed in claim 5, wherein said cleaning cycle is greater than the creation time of said double live disk.
7. A dual active disk cleaning system, comprising:
the request receiving module is used for receiving a disk cleaning request;
the disk scanning module is used for scanning the double-active disk for the first time, taking the different data between the main disk and the auxiliary disk in the double-active disk as first residual data and second residual data only stored in a database;
the first deleting module is used for deleting the first residual data and reporting the second residual data to the database;
and the second deleting module is used for scanning the double-live disk for the second time, and deleting the second residual data when the data scanned for the second time contains the data which is the same as the second residual data.
8. The cleaning system of claim 7, further comprising:
and the third deleting module is used for calling a disk cleaning instruction to delete the additional residual data corresponding to the second residual data in the computing node after the second residual data is deleted.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for cleaning a double live disk according to any one of claims 1 to 6.
10. An electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the method for cleaning a double-active disk according to any one of claims 1 to 6 when calling the computer program in the memory.
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