CN111274077A - Disk array reliability testing method, system, terminal and storage medium - Google Patents
Disk array reliability testing method, system, terminal and storage medium Download PDFInfo
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- CN111274077A CN111274077A CN202010094594.2A CN202010094594A CN111274077A CN 111274077 A CN111274077 A CN 111274077A CN 202010094594 A CN202010094594 A CN 202010094594A CN 111274077 A CN111274077 A CN 111274077A
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000002347 injection Methods 0.000 claims abstract description 27
- 239000007924 injection Substances 0.000 claims abstract description 27
- 238000010998 test method Methods 0.000 claims abstract description 3
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 238000012986 modification Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000004590 computer program Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2273—Test methods
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
- G06F11/2221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test input/output devices or peripheral units
Abstract
The invention provides a disk array reliability test method, a system, a terminal and a storage medium, wherein the method comprises the following steps: acquiring a hard disk id in a cluster and disk array information corresponding to the hard disk id; randomly selecting a target hard disk id and injecting fault parameters into the target hard disk according to the target hard disk id; judging whether a hot spare disk of a corresponding disk array of a target hard disk synchronously backs up data of the target hard disk or not: and if so, judging that the disk array corresponding to the target hard disk passes the test. The invention can realize the automation of hard disk fault injection test, reduce the personnel cost, improve the fault injection times and greatly improve the working efficiency.
Description
Technical Field
The invention relates to the technical field of storage, in particular to a disk array reliability testing method, a disk array reliability testing system, a disk array reliability testing terminal and a storage medium.
Background
The storage system has a relatively high dependence on the hard disk, and if there is a hard disk failure, the correct storage of data may be affected, and a serious person may cause data loss. Therefore, when a hard disk fails, hot standby replacement needs to be carried out in time, normality of data transfer is ensured, after a new hard disk replacing the failed hard disk is inserted, the original disk array needs to be added correctly, data in the original hot standby disk is copied correctly, and the hot standby disk is synchronized after copying is finished.
The current test method for hard disk fault injection of the storage system is mainly manual test, and after hard disk fault injection is performed each time, data synchronization needs to be waited, a fault hard disk is replaced after synchronization is completed for a period of time, a new hard disk is added to RAID again, then data copy-back is waited, and finally recovery of an original hot spare disk is confirmed. The whole testing process is long in time consumption, long data synchronization time is not fixed according to the classification of the testing hard disks and the operation, and testing personnel need to watch for a long time, so that personnel waste is caused, and long time is needed in the aspect of RAID reliability testing or testing is insufficient. Furthermore, manual execution leads to repeated verification difficulties, possibly missing some small probability of problems to the backend, causing field problems.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides a method, a system, a terminal and a storage medium for testing reliability of a disk array, so as to solve the above-mentioned technical problems.
In a first aspect, the present invention provides a method for testing reliability of a disk array, including:
acquiring a hard disk id in a cluster and disk array information corresponding to the hard disk id;
randomly selecting a target hard disk id and injecting fault parameters into the target hard disk according to the target hard disk id;
judging whether a hot spare disk of a corresponding disk array of a target hard disk synchronously backs up data of the target hard disk or not:
and if so, judging that the disk array corresponding to the target hard disk passes the test.
Further, the method further comprises:
creating a cluster;
initializing the cluster and creating a disk array;
a volume is created and mapped to a host before IO is run.
Further, the acquiring hard disk id in the cluster and disk array information corresponding to the hard disk id includes:
calling an SSH command in the paramiko to log in the cluster node;
and acquiring a hard disk id on the login node and the disk array hot spare disk information corresponding to the hard disk id.
Further, the injecting the fault parameter into the target hard disk includes:
and modifying the environment variable of the target hard disk.
Further, the determining whether the hot spare disk of the corresponding disk array of the target hard disk synchronously backs up the data of the target hard disk includes:
checking whether the hot spare disk of the corresponding disk array of the target hard disk is changed into a member disk executing data synchronous operation:
if so, judging that the hot backup disk of the corresponding disk array of the target hard disk synchronously backs up the data of the target hard disk;
if not, the hot spare disk of the corresponding disk array of the output target hard disk fails.
Further, the method further comprises:
inquiring the data synchronous backup condition of the corresponding disk array of the target hard disk;
if the synchronous data backup is completed, canceling the fault parameters injected into the target hard disk;
judging whether the target hard disk is added into the corresponding disk array again and copying data from the hot standby disk:
if so, judging that the corresponding disk array of the target hard disk is normal;
if not, judging that the corresponding disk array of the target hard disk is abnormal.
In a second aspect, the present invention provides a disk array reliability testing system, including:
the information acquisition unit is configured to acquire a hard disk id in the cluster and disk array information corresponding to the hard disk id;
the fault injection unit is configured for randomly selecting a target hard disk id and injecting fault parameters into the target hard disk according to the target hard disk id;
the backup judging unit is configured to judge whether a hot backup disk of a corresponding disk array of a target hard disk synchronously backs up data of the target hard disk;
and the pass determination unit is configured to determine that the disk array corresponding to the target hard disk passes the test if the hot spare disk of the corresponding disk array of the target hard disk synchronously backs up the data of the target hard disk.
Further, the fault injection unit includes:
and the variable modification module is configured for modifying the environment variable of the target hard disk.
In a third aspect, a terminal is provided, including:
a processor, a memory, wherein,
the memory is used for storing a computer program which,
the processor is used for calling and running the computer program from the memory so as to make the terminal execute the method of the terminal.
In a fourth aspect, a computer storage medium is provided having stored therein instructions that, when executed on a computer, cause the computer to perform the method of the above aspects.
The beneficial effect of the invention is that,
according to the disk array reliability testing method, system, terminal and storage medium provided by the invention, fault parameters are injected into the target hard disk, the disk fault situation is simulated, and whether the hot spare disk of the corresponding disk array normally operates is further verified, so that the automatic reliability testing of the disk array is realized. The invention can realize the automation of hard disk fault injection test, reduce the personnel cost, improve the fault injection times and greatly improve the working efficiency.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a method of one embodiment of the invention.
FIG. 2 is a schematic block diagram of a system of one embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and 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 invention.
RAID (disk array) is a large number of independent disks combined into a disk group with a large capacity, and the performance of the entire disk system is improved by the additive effect of providing data by individual disks. With this technique, data is divided into a plurality of sectors, each of which is stored on a respective hard disk.
FIG. 1 is a schematic flow diagram of a method of one embodiment of the invention. The execution subject in fig. 1 may be a disk array reliability testing system.
As shown in fig. 1, the method 100 includes:
and 140, if yes, judging that the disk array corresponding to the target hard disk passes the test.
In order to facilitate understanding of the present invention, the following describes the reliability testing method of a disk array according to the principles of the reliability testing method of a disk array of the present invention, in conjunction with the reliability testing process of the disk array in the embodiments.
Specifically, the method for testing the reliability of the disk array comprises the following steps:
and S1, acquiring the hard disk id in the cluster and the disk array information corresponding to the hard disk id.
Install the storage system, install python version 2.7, load the paramiko library. Creating a cluster, logging in a GUI (graphical user interface), initializing the cluster, creating a pool volume, and operating IO (input/output), wherein the specific method comprises the following steps: and opening a web browser, inputting the IP of the cluster in an address bar, clicking to enter, entering a GUI login interface, initializing according to a prompt, creating a pool on the GUI interface after initialization is finished, adding a memory, covering each RAID type, creating a volume, mapping a host and then operating IO.
And calling SSH commands in the paramiko to log in the node IP respectively, acquiring the corresponding information of the IDs of all the current hard disks and the RAID, and recording the hot spare disk information in the hard disks.
S2, randomly selecting a target hard disk id and injecting fault parameters into the target hard disk according to the target hard disk id.
And randomly selecting a target hard disk id to perform fault parameter injection, wherein the selection mode of the target hard disk id can be that one hard disk is selected from different RAID respectively to perform fault alternate injection, or the same hard disk or different hard disks in the same RAID can be selected to perform fault repeated injection.
The fault parameter injection method is to modify the environment variable of the hard disk by using the script and modify the environment variable of the hard disk into the set fault parameter.
S3, judging whether the hot backup disk of the corresponding disk array of the target hard disk synchronously backs up the data of the target hard disk or not: and if so, judging that the disk array corresponding to the target hard disk passes the test.
After fault injection, checking whether the original hot spare disk is changed into a member disk of the RAID where the fault injection disk is located, and confirming that the hot spare disk can carry out data synchronization operation. If no spare disk becomes the member disk of the array, the output fault injection hot spare disk fails to test, and the problem of human intervention confirmation is solved.
Whether fault injection is cancelled or not is judged by inquiring data synchronization conditions, partial synchronization can be selected to be completed, fault injection can be cancelled after complete synchronization is completed, appropriate data synchronization time can be set here, and the conditions that synchronization is completed and synchronization is not completed (the same time and the time required by data synchronization are different under the condition that IO is always operated) can be covered.
And after the injection fault is cancelled, whether the fault hard disk is added to the original RAID again is checked, the data copy-back operation is carried out from the original hot spare disk, and whether the original hot spare disk is recovered to be the hot spare disk after the copy-back operation is finished is judged. And if the target hard disk is restored to the normal state, judging that the disk array is normal, otherwise, judging that the disk array is abnormal.
And according to the ID information of the fault injection disk selected in the step S2, performing fault repeated injection of the same hard disk or performing RAID reliability test on the fault injection of the hard disks under different RAIDs.
As shown in fig. 2, the system 200 includes:
the information obtaining unit 210 is configured to obtain a hard disk id in a cluster and disk array information corresponding to the hard disk id;
the fault injection unit 220 is configured to randomly select a target hard disk id and inject a fault parameter into the target hard disk according to the target hard disk id;
the backup determining unit 230 is configured to determine whether a hot spare disk of a corresponding disk array of a target hard disk synchronously backs up data of the target hard disk;
the pass-through determination unit 240 is configured to determine that the disk array corresponding to the target hard disk passes the test if the hot spare disk of the corresponding disk array of the target hard disk synchronously backs up the data of the target hard disk.
Optionally, as an embodiment of the present invention, the fault injection unit includes:
and the variable modification module is configured for modifying the environment variable of the target hard disk.
Fig. 3 is a schematic structural diagram of a terminal system 300 according to an embodiment of the present invention, where the terminal system 300 may be used to execute the disk array reliability testing method according to the embodiment of the present invention.
The terminal system 300 may include: a processor 310, a memory 320, and a communication unit 330. The components communicate via one or more buses, and those skilled in the art will appreciate that the architecture of the servers shown in the figures is not intended to be limiting, and may be a bus architecture, a star architecture, a combination of more or less components than those shown, or a different arrangement of components.
The memory 320 may be used for storing instructions executed by the processor 310, and the memory 320 may be implemented by any type of volatile or non-volatile storage terminal or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The executable instructions in memory 320, when executed by processor 310, enable terminal 300 to perform some or all of the steps in the method embodiments described below.
The processor 310 is a control center of the storage terminal, connects various parts of the entire electronic terminal using various interfaces and lines, and performs various functions of the electronic terminal and/or processes data by operating or executing software programs and/or modules stored in the memory 320 and calling data stored in the memory. The processor may be composed of an Integrated Circuit (IC), for example, a single packaged IC, or a plurality of packaged ICs connected with the same or different functions. For example, the processor 310 may include only a Central Processing Unit (CPU). In the embodiment of the present invention, the CPU may be a single operation core, or may include multiple operation cores.
A communication unit 330, configured to establish a communication channel so that the storage terminal can communicate with other terminals. And receiving user data sent by other terminals or sending the user data to other terminals.
The present invention also provides a computer storage medium, wherein the computer storage medium may store a program, and the program may include some or all of the steps in the embodiments provided by the present invention when executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a Random Access Memory (RAM).
Therefore, the invention simulates the disk fault situation by injecting the fault parameters into the target hard disk, and further verifies whether the hot spare disk of the corresponding disk array normally operates, thereby realizing the automatic reliability test of the disk array. The invention can realize the automation of hard disk fault injection test, reduce the personnel cost, improve the fault injection times and greatly improve the working efficiency, and the technical effect achieved by the embodiment can be referred to the description above and is not repeated herein.
Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be embodied in the form of a software product, where the computer software product is stored in a storage medium, 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, and the like, and the storage medium can store program codes, and includes instructions for enabling a computer terminal (which may be a personal computer, a server, or a second terminal, a network terminal, and the like) to perform all or part of the steps of the method in the embodiments of the present invention.
The same and similar parts in the various embodiments in this specification may be referred to each other. Especially, for the terminal embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the description in the method embodiment.
In the embodiments provided in the present invention, it should be understood that the disclosed system and method can be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, systems or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A disk array reliability test method is characterized by comprising the following steps:
acquiring a hard disk id in a cluster and disk array information corresponding to the hard disk id;
randomly selecting a target hard disk id and injecting fault parameters into the target hard disk according to the target hard disk id;
judging whether a hot spare disk of a corresponding disk array of a target hard disk synchronously backs up data of the target hard disk or not:
and if so, judging that the disk array corresponding to the target hard disk passes the test.
2. The method of claim 1, further comprising:
creating a cluster;
initializing the cluster and creating a disk array;
a volume is created and mapped to a host before IO is run.
3. The method according to claim 1, wherein the obtaining of the hard disk id in the cluster and the disk array information corresponding to the hard disk id comprises:
calling an SSH command in the paramiko to log in the cluster node;
and acquiring a hard disk id on the login node and the disk array hot spare disk information corresponding to the hard disk id.
4. The method of claim 1, wherein injecting the failure parameter into the target hard disk comprises:
and modifying the environment variable of the target hard disk.
5. The method of claim 1, wherein the determining whether the hot spare disk of the corresponding disk array of the target hard disk synchronously backs up the data of the target hard disk comprises:
checking whether the hot spare disk of the corresponding disk array of the target hard disk is changed into a member disk executing data synchronous operation:
if so, judging that the hot backup disk of the corresponding disk array of the target hard disk synchronously backs up the data of the target hard disk;
if not, the hot spare disk of the corresponding disk array of the output target hard disk fails.
6. The method of claim 1, further comprising:
inquiring the data synchronous backup condition of the corresponding disk array of the target hard disk;
if the synchronous data backup is completed, canceling the fault parameters injected into the target hard disk;
judging whether the target hard disk is added into the corresponding disk array again and copying data from the hot standby disk:
if so, judging that the corresponding disk array of the target hard disk is normal;
if not, judging that the corresponding disk array of the target hard disk is abnormal.
7. A disk array reliability testing system, comprising:
the information acquisition unit is configured to acquire a hard disk id in the cluster and disk array information corresponding to the hard disk id;
the fault injection unit is configured for randomly selecting a target hard disk id and injecting fault parameters into the target hard disk according to the target hard disk id;
the backup judging unit is configured to judge whether a hot backup disk of a corresponding disk array of a target hard disk synchronously backs up data of the target hard disk;
and the pass determination unit is configured to determine that the disk array corresponding to the target hard disk passes the test if the hot spare disk of the corresponding disk array of the target hard disk synchronously backs up the data of the target hard disk.
8. The system of claim 7, wherein the fault injection unit comprises:
and the variable modification module is configured for modifying the environment variable of the target hard disk.
9. A terminal, comprising:
a processor;
a memory for storing instructions for execution by the processor;
wherein the processor is configured to perform the method of any one of claims 1-6.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1-6.
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| CN111737142A (en) * | 2020-06-30 | 2020-10-02 | 湖南国科微电子股份有限公司 | Test method, test device and computer readable storage medium |
| CN111949414A (en) * | 2020-09-25 | 2020-11-17 | 苏州浪潮智能科技有限公司 | Method, system, terminal and storage medium for optimizing performance of storage controller |
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| CN113742148A (en) * | 2021-08-13 | 2021-12-03 | 湖南艾科诺维科技有限公司 | Hard disk stability and reliability test method, test system and computer storage medium |
| CN114185721A (en) * | 2022-02-17 | 2022-03-15 | 浪潮(山东)计算机科技有限公司 | Thermal storage backup system and method for server |
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