CN111324500B - Method, device and storage medium for detecting ATS (automatic transfer switching) function of storage array - Google Patents
Method, device and storage medium for detecting ATS (automatic transfer switching) function of storage array Download PDFInfo
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- G06F11/00—Error detection; Error correction; Monitoring
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Abstract
The invention relates to a method, a device and a storage medium for detecting the ATS function of a storage array, wherein the method comprises the following steps: s1: and (3) a step of test exclusion of non-relevant read-write data, S2: configuring the size of test data; s3: testing the ATS function; s4: and comparing the test execution time for opening and closing the ATS function switch with the average read-write speed of the virtual disk.
Description
Technical Field
The invention belongs to the technical field of ATS function detection, and particularly relates to a method and a device for detecting ATS functions of a storage array and a storage medium.
Background
A hardware auxiliary locking mechanism (ATS) is a high-level function provided by VMware and related to a storage array, and the main function of the ATS is to more efficiently finish I/O read-write operation on the premise of ensuring the read-write safety of a plurality of hosts to the same storage volume (LUN). The realization principle is as follows: when the virtual host performs write operation on the virtual disk (storage volume LUN) each time, because the original locking mechanism locks the whole LUN, only one host can be allowed to perform write operation on the virtual disk at the same time. And the ATS reduces the locking range of the locking mechanism and only locks a single written data block, thereby reducing the lock granularity, allowing a plurality of hosts to write the same virtual disk and improving the concurrent IO and read-write performance of the VMFS system.
With the improvement of the read-write performance requirement of the storage array by the client, whether the ATS function is provided becomes an index of the storage advanced function.
The prior art detects ATS functionality by:
and comparing the read-write consumption time of the virtual disk under the two conditions of opening and closing the ATS function switch to determine whether the function passes the test. If it takes relatively short time to perform the same write operation while turning on the ATS function switch, it indicates that the function test passed. The detection method has the following defects:
first, interference from other non-relevant tests is not excluded from the test process. Under the influence of software and hardware environments, the whole storage array has a bottleneck of read-write speed, and if other non-relevant read-write activities exist in a cluster environment, the accuracy of a test result is reduced.
Secondly, comparing the read-write speed of the function opening and closing in the test process is also the standard for realizing the ATS function; in the prior art, test result data only counts test execution time, but does not count average read-write speed in the test process.
Thirdly, during automatic testing, the writing operation is performed on the host of the virtual machine, the written data is a fixed value, and the fixed data value is very small, so that the testing time is very short, the difference of statistical time obtained when an ATS switch is turned on and off for high-end storage with excellent performance is very small, the superiority of the ATS function cannot be fully embodied, the evaluation result is influenced, and the condition that the final result shows that the testing fails even if the storage array supports the ATS function often occurs.
In view of this, the present invention provides a method, an apparatus and a storage medium for detecting ATS function of a storage array; it is very necessary to solve the above-mentioned defects existing in the prior art.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides a method, an apparatus and a storage medium for detecting ATS function of a storage array, so as to solve the above-mentioned technical problems.
In a first aspect, the present invention provides a method for detecting ATS function of a storage array, including the following steps:
s1: the step of test exclusion of the irrelevant read-write data specifically comprises the following steps:
remotely connecting the storage array before the test is executed, detecting the real-time read-write speed of the whole storage array, and when the detected real-time read-write speed is higher than a preset threshold speed, terminating the test and prompting the existence of data read-write activity interfering the test; continuing to execute the step after closing the corresponding data read-write activity until the real-time read-write rate of the whole storage array is lower than the preset threshold rate, and turning to the step S2;
s2: a step of configuring the size of the test data,
the size of the test data of the storage array mechanical hard disk is as follows:
Data＝disk*80/(n-1)；
the size of the test data of the solid state disk is as follows:
Data＝disk*150/(n-1)；
wherein disk is the number of hard disks, and n is the number of virtual hosts participating in the test.
S3: the ATS function testing method specifically comprises the following steps:
starting an AST switch, and simultaneously starting a plurality of hosts to perform read-write operation test on the virtual disk:
during the test, remote inquiry statistics is carried out only for the read-write rate IOPS (unit M/S) of the shared disk, the value of the read-write rate IOPS of the shared disk is recorded once every certain time, and after the test is finished, the average read-write rate value is calculated, wherein the calculation formula is as follows:
the sum of rates divided by the number of statistics AveIOPS = (IOPS 1+ IOPS2+ \8230; + IOPSm)/m;
counting the total test time t;
storing the average read-write rate value AveIOPS and the total test time t into a file;
turning off the AST switch and repeating the operation test;
s4: the step of comparing the test execution time for opening and closing the ATS function switch with the average read-write speed of the virtual disk specifically comprises the following steps:
if the test execution time is short and the average read-write speed is higher than that of the ATS functional switch after the ATS functional switch is turned on, the storage array supports the function.
Preferably, in the step S1, the preset threshold rate is 5M/S; and the testing precision can be improved by taking 5M/s as a threshold speed.
Preferably, in step S3, the value of the shared disk read-write rate IOPS is recorded every 0.1 second; the accuracy of the average read-write speed is improved.
In a second aspect, the present invention provides an apparatus for detecting ATS function of a storage array, comprising:
the test of non-relevant reading and writing data gets rid of the module, this module includes:
remotely connecting the storage array before the test is executed, detecting the real-time read-write speed of the whole storage array, and when the detected real-time read-write speed is higher than a preset threshold speed, terminating the test and prompting the existence of data read-write activity interfering the test; continuing to execute the steps after closing the corresponding data read-write activities until the real-time read-write rate of the whole storage array is lower than a preset threshold rate;
a configuration test data size module, the module comprising:
the size of the test data of the storage array mechanical hard disk is as follows:
Data＝disk*80/(n-1)；
the size of the test data of the solid state disk is as follows:
Data＝disk*150/(n-1)；
wherein, disk is the number of hard disks, and n is the number of virtual hosts participating in the test.
An ATS functionality test module, the module comprising:
starting an AST switch, and simultaneously starting a plurality of hosts to perform read-write operation test on the virtual disk:
during the test, remote inquiry statistics is carried out only for the read-write rate IOPS (unit M/S) of the shared disk, the value of the read-write rate IOPS of the shared disk is recorded once every certain time, and after the test is finished, the average read-write rate value is calculated, wherein the calculation formula is as follows:
the sum of rates divided by the number of statistics AveIOPS = (IOPS 1+ IOPS2+ \8230; + IOPSm)/m;
counting the total test time t;
storing the average read-write rate value AveIOPS and the total test time t into a file;
turning off the AST switch and repeating the operation test;
a test result comparison module, the module comprising:
comparing the test execution time of the opening and closing of the ATS function switch with the average read-write speed of the virtual disk,
if the test execution time is short and the average read-write speed is higher than that of the ATS functional switch after the ATS functional switch is turned on, the storage array supports the function.
Preferably, in the non-related read-write data test elimination module, a preset threshold rate is 5M/s; and the testing precision can be improved by taking 5M/s as a threshold speed.
Preferably, in the ATS function test module, the value of the shared disk read-write speed IOPS is recorded once every 0.1 second; the accuracy of the average read-write speed is improved.
In a third aspect, there is provided a computer storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method of the first aspect described above.
The invention has the advantages that whether the storage array supports the ATS function is detected in the client site, meanwhile, the error of the test data caused by environmental interference is eliminated, the flexible configuration of the test data is provided, the test transportability of the method between high-end and low-end storage is increased, and the real-time and average read-write rate data counted by the test provides more powerful data support for the result. Finally presenting a convincing accurate detection result to a client.
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 flow chart of a method for detecting ATS function of a storage array according to the present invention.
Fig. 2 is a schematic diagram of an apparatus for detecting ATS function of a storage array according to the present invention.
The device comprises a 1-irrelevant read-write data test elimination module, a 2-configuration test data size module, a 3-ATS function test module and a 4-test result comparison module.
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.
Example 1:
as shown in fig. 1, the method for detecting ATS function of a storage array according to this embodiment includes the following steps:
s1: the step of test exclusion of the irrelevant read-write data specifically comprises the following steps:
remotely connecting the storage array before the test is executed, detecting the real-time read-write speed of the whole storage array, and when the detected real-time read-write speed is higher than a preset threshold speed, terminating the test and prompting the existence of data read-write activity interfering the test; continuing to execute the step after closing the corresponding data read-write activity until the real-time read-write speed of the whole storage array is lower than the preset threshold speed, and turning to the step S2; presetting a threshold speed as 5M/s; and the testing precision can be improved by taking 5M/s as a threshold speed.
S2: a step of configuring the size of the test data,
the size of the test data of the storage array mechanical hard disk is as follows:
Data＝disk*80/(n-1)；
the size of the test data of the solid state disk is as follows:
Data＝disk*150/(n-1)；
wherein disk is the number of hard disks, and n is the number of virtual hosts participating in the test.
S3: the ATS function testing method specifically comprises the following steps:
starting an AST switch, and simultaneously starting a plurality of hosts to perform read-write operation test on the virtual disk:
during testing, remote query statistics is carried out only for the read-write speed IOPS (unit M/S) of the shared disk, the value of the read-write speed IOPS of the shared disk is recorded once every certain time, and after the testing is finished, the average read-write speed value is calculated, wherein the calculation formula is as follows:
the sum of rates divided by the number of statistics AveIOPS = (IOPS 1+ IOPS2+ \8230; + IOPSm)/m;
counting the total test time t;
storing the average read-write rate value AveIOPS and the total test time t into a file;
turning off the AST switch and repeating the operation test;
in the step S3, the value of the read-write rate IOPS of the shared disk is recorded every 0.1 second; the accuracy of the average read-write rate is improved.
S4: the step of comparing the test execution time for opening and closing the ATS function switch with the average read-write speed of the virtual disk specifically comprises the following steps:
if the test execution time is short and the average read-write speed is higher than that of the ATS functional switch after the ATS functional switch is turned on, the storage array supports the function.
Example 2:
the embodiment provides a device for detecting the ATS function of a storage array, which includes:
the irrelevant read-write data test excludes the module 1, the module includes:
the method comprises the steps that a storage array is remotely connected before testing is executed, the real-time reading and writing speed of the whole storage array is detected, and when the detected real-time reading and writing speed is higher than a preset threshold speed, the test is stopped, and data reading and writing activities interfering with the test are prompted; continuing to execute the steps after closing the corresponding data read-write activities until the real-time read-write speed of the whole storage array is lower than a preset threshold speed; presetting a threshold speed as 5M/s; and the testing precision can be improved by taking 5M/s as a threshold speed.
Configuring a test data size module 2, the module comprising:
the size of the test data of the storage array mechanical hard disk is as follows:
Data＝disk*80/(n-1)；
the size of the test data of the solid state disk is as follows:
Data＝disk*150/(n-1)；
wherein, disk is the number of hard disks, and n is the number of virtual hosts participating in the test.
ATS functional test module 3, this module includes:
starting an AST switch, and simultaneously starting a plurality of hosts to perform read-write operation test on the virtual disk:
during testing, remote query statistics is carried out only for the read-write speed IOPS (unit M/S) of the shared disk, the value of the read-write speed IOPS of the shared disk is recorded once every certain time, and after the testing is finished, the average read-write speed value is calculated, wherein the calculation formula is as follows:
the sum of rates divided by the number of statistics AveIOPS = (IOPS 1+ IOPS2+ \8230; + IOPSm)/m;
counting the total test time t;
storing the average read-write rate value AveIOPS and the total test time t into a file;
turning off the AST switch and repeating the operation test;
recording the value of the shared disk read-write rate IOPS every 0.1 second; the accuracy of the average read-write rate is improved.
A test result comparison module 4, comprising:
comparing the test execution time of the opening and closing of the ATS function switch with the average read-write speed of the virtual disk,
if the test execution time is short and the average read-write speed is higher than that of the ATS functional switch after the ATS functional switch is turned on, the storage array supports the function.
Example 3:
the present embodiment provides a computer storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method of embodiment 1 described above.
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 (9)
1. A method for performing ATS function testing on a storage array, comprising the steps of:
s1: the step of test exclusion of the non-relevant read-write data specifically comprises the following steps:
the method comprises the steps that a storage array is remotely connected before testing is executed, the real-time reading and writing speed of the whole storage array is detected, and when the detected real-time reading and writing speed is higher than a preset threshold speed, the test is stopped, and data reading and writing activities interfering with the test are prompted; continuing to execute the step after closing the corresponding data read-write activity until the real-time read-write rate of the whole storage array is lower than the preset threshold rate, and turning to the step S2;
s2: configuring the size of test data;
s3: the ATS function testing method specifically comprises the following steps:
starting an AST switch, and simultaneously starting a plurality of hosts to perform read-write operation test on the virtual disk: performing remote query statistics only for the read-write rate IOPS of the shared disk during testing, recording the value of the read-write rate IOPS of the shared disk at regular intervals, and calculating an average read-write rate value after testing is finished;
turning off the AST switch and repeating the operation test;
s4: the step of comparing the test execution time for opening and closing the ATS function switch with the average read-write speed of the virtual disk specifically comprises the following steps:
if the test execution time is short and the average read-write speed is higher than that of the ATS functional switch after the ATS functional switch is turned on, the storage array supports the function.
2. The method for detecting the ATS function of the storage array of claim 1, wherein the predetermined threshold rate in step S1 is 5M/S.
3. The method for detecting the ATS function of the storage array according to claim 1 or 2, wherein in step S3, the value of the shared disk read-write speed IOPS is recorded every 0.1 seconds.
4. The method for testing ATS function of storage array of claim 3, wherein in step S2,
the size of the test data of the storage array mechanical hard disk is as follows:
Data＝disk*80/(n-1)；
the size of the test data of the solid state disk is as follows:
Data＝disk*150/(n-1)；
wherein, disk is the number of hard disks, and n is the number of virtual hosts participating in the test.
5. The method for detecting ATS function of storage array as claimed in claim 4, wherein in step S3,
and after the test is finished, calculating an average reading and writing rate value, wherein the calculation formula is as follows:
the sum of rates divided by the number of statistics AveIOPS = (IOPS 1+ IOPS2+ \8230; + IOPSm)/m;
counting the total test time t;
and storing the average read-write speed value AveIOPS and the total test time t into a file.
6. An apparatus for detecting ATS functionality of a storage array, comprising: the irrelevant read-write data test excludes the module, this module includes:
remotely connecting the storage array before the test is executed, detecting the real-time read-write speed of the whole storage array, and when the detected real-time read-write speed is higher than a preset threshold speed, terminating the test and prompting the existence of data read-write activity interfering the test; continuing to execute the steps after closing the corresponding data read-write activities until the real-time read-write speed of the whole storage array is lower than a preset threshold speed;
a configuration test data size module, the module comprising:
the size of the test data of the storage array mechanical hard disk is as follows:
Data＝disk*80/(n-1)；
the size of the test data of the solid state disk is as follows:
Data＝disk*150/(n-1)；
wherein disk is the number of hard disks, and n is the number of virtual hosts participating in the test;
an ATS functionality test module, the module comprising:
starting an AST switch, and simultaneously starting a plurality of hosts to perform read-write operation test on the virtual disk: during the test, remote inquiry statistics is carried out only for the read-write rate IOPS of the shared disk, the value of the read-write rate IOPS of the shared disk is recorded once every certain time, and after the test is finished, the average read-write rate value is calculated, wherein the calculation formula is as follows:
the sum of rates divided by the number of statistics AveIOPS = (IOPS 1+ IOPS2+ \8230; + IOPSm)/m;
counting the total test time t;
storing the average read-write rate value AveIOPS and the total test time t into a file;
turning off the AST switch and repeating the operation test;
a test result comparison module, the module comprising:
comparing the test execution time of the opening and closing of the ATS function switch with the average read-write speed of the virtual disk,
if the test execution time is short and the average read-write speed is higher than that of the ATS functional switch after the ATS functional switch is turned on, the storage array supports the function.
7. The apparatus of claim 6, wherein the threshold rate is 5M/s in the irrelevant read/write data test rejection module.
8. The apparatus for detecting storage array ATS function according to claim 6 or 7, wherein the ATS function test module records the value of the shared disk read/write speed IOPS every 0.1 seconds.
9. A computer storage medium having stored thereon instructions which, when run on a computer, cause the computer to perform the method of any of claims 1-3 above.
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| CN109696591A (en) * | 2018-11-30 | 2019-04-30 | 南京国电南自电网自动化有限公司 | A kind of intelligence based on ATS automatically testing platform obtains the test method of failure wave-recording |
| CN110096231A (en) * | 2019-04-25 | 2019-08-06 | 新华三云计算技术有限公司 | The processing method and processing device of disk lock |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109696591A (en) * | 2018-11-30 | 2019-04-30 | 南京国电南自电网自动化有限公司 | A kind of intelligence based on ATS automatically testing platform obtains the test method of failure wave-recording |
| CN110096231A (en) * | 2019-04-25 | 2019-08-06 | 新华三云计算技术有限公司 | The processing method and processing device of disk lock |
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