CN108920313A - A kind of test method of RAID, device, equipment and medium - Google Patents
A kind of test method of RAID, device, equipment and medium Download PDFInfo
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- CN108920313A CN108920313A CN201810643021.3A CN201810643021A CN108920313A CN 108920313 A CN108920313 A CN 108920313A CN 201810643021 A CN201810643021 A CN 201810643021A CN 108920313 A CN108920313 A CN 108920313A
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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
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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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Abstract
The invention discloses the test method of RAID a kind of, device, equipment and medium, the step of this method, includes：Obtaining operation has the initial IO total amount of storage system of RAID to be measured；By the test data of preset data amount RAID to be measured is written, and obtain the current IO total amount of storage system；The difference of current IO total amount Yu initial IO total amount is calculated, and as test I/O total amount；It carries out doing quotient's operation using test I/O total amount and preset data amount, and generate RAID to be measured writes amplification factor using as test result.This method realizes the test for writing magnification level to RAID.In addition, the present invention also provides the test device of RAID a kind of, equipment and medium, beneficial effect is same as above.
Description
Technical field
The present invention relates to testing fields, more particularly to the test method of RAID a kind of, device, equipment and medium.
Background technique
RAID (Redundant Arrays of Independent Disks, disk array) is opposite by many prices
Cheap disk it is combined at the huge disk group of capacity, it is whole to provide addition effect promoting produced by data using individual disks
A disk system efficiency.Using RAID technique, data are cut into many sections, are stored on each hard disk respectively.
In actual application, the creation and operation of RAID is often based upon storage system, when data are sent to storage system
When, inside storage system creation RAID and to transmitted data into processing.RAID is when handling data in addition to number
Corresponding check block and hot standby piece etc. can be also generated according to block.By taking RAID5 as an example, when there is new data to be passed to, need first to exist
Legacy data is read in RAID to carry out data after XOR operation generation processing with new data, then original verification is read from RAID
Data carry out XOR operation and generate new verification data after data and processing, finally again write data after processing and new verification data
Enter into RAID.As it can be seen that under RAID mechanism, as soon as the write-in of any new data will be read twice and be write twice, this
Cause " the writing amplification " of data." writing amplification " can influence the working performance of RAID because occupying the I/O bandwidth of RAID, due to
The appearance of " writing amplification " situation is usually associated in the course of work of RAID, and " writing amplification " situation of RAID can be directly anti-
The overall performance of its own is reflected, therefore " writing amplification " degree of RAID is tested, is to understand whether RAID reliably weighs
It will foundation.
It is ability to realize the test for writing magnification level to RAID it can be seen that providing the test method of RAID a kind of
Field technique personnel's problem to be solved.
Summary of the invention
The object of the present invention is to provide the test method of RAID a kind of, device, equipment and media, are write with realizing to RAID
The test of magnification level.
In order to solve the above technical problems, the present invention provides the test method of RAID a kind of, including：
Obtaining operation has the initial IO total amount of storage system of RAID to be measured；
By the test data of preset data amount RAID to be measured is written, and obtain the current IO total amount of storage system；
The difference of current IO total amount Yu initial IO total amount is calculated, and as test I/O total amount；
It carries out doing quotient's operation using test I/O total amount and preset data amount, and generate RAID to be measured writes amplification factor to make
For test result.
Preferably, the test data of preset data amount RAID to be measured is written, and is being obtained into the current IO of storage system
Before total amount, this method further comprises：
Corresponding test case is set according to the application scenarios of RAID to be measured, and according to test case to the work of RAID to be measured
Operation mode is configured；
Correspondingly, preset data amount is specified by test case.
Preferably, amplification factor is write so that as after test result, this method further comprises generate RAID to be measured：
By the test result of RAID to be measured and test case corresponding record to log.
Preferably, obtaining the initial IO total amount for running and having the storage system of RAID to be measured is specially：
The initial IO total amount of storage system is obtained by Vdbench testing tool.
Preferably, RAID to be measured specifically uses RAID5 operating mode.
In addition, the present invention also provides the test devices of RAID a kind of, including：
Module is obtained, the initial IO total amount for having the storage system of RAID to be measured for obtaining operation；
Writing module for the test data of preset data amount to be written to RAID to be measured, and obtains working as storage system
Preceding IO total amount；
First computing module, for calculating the difference of current IO total amount Yu initial IO total amount, and as test I/O total amount；
Second computing module for carrying out doing quotient's operation using test I/O total amount and preset data amount, and generates to be measured
RAID's writes amplification factor using as test result.
Preferably, which further comprises：
Use-case configuration module, for corresponding test case to be arranged according to the application scenarios of RAID to be measured, and according to test
Use-case configures the operating mode of RAID to be measured；
Correspondingly, preset data amount is specified by test case.
Preferably, which further comprises：
Logger module, for by the test result of RAID to be measured and test case corresponding record to log.
In addition, the present invention also provides the test equipments of RAID a kind of, including：
Memory, for storing computer program；
Processor, when for executing computer program the step of the realization such as test method of above-mentioned RAID.
In addition, being stored with meter on computer readable storage medium the present invention also provides a kind of computer readable storage medium
Calculation machine program, when computer program is executed by processor the step of the realization such as test method of above-mentioned RAID.
The test method of RAID provided by the present invention, by storage system obtain RAID be written test data before with write-in
The difference of I/O data amount after test data is surveyed in this, as the IO total amount of RAID during RAID is written in test data
IO total amount is tried, due to there is the case where " writing amplification " during RAID is written in test data, test I/O total amount is answered
Greater than preset data amount, and then by carrying out doing quotient's operation to generate RAID's to be measured using test I/O total amount and preset data amount
Write amplification factor and as test result.The IO of this method storage system after the test data for obtaining write-in preset data amount becomes
After change amount, test result is generated using the operation corresponding to the progress of preset data amount of IO variable quantity, for reflecting that writing for RAID is put
Big degree realizes the test for writing magnification level to RAID.In addition, the present invention also provides the test device of RAID a kind of, setting
Standby and medium, beneficial effect are same as above.
Detailed description of the invention
In order to illustrate the embodiments of the present invention more clearly, attached drawing needed in the embodiment will be done simply below
It introduces, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ordinary skill people
For member, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of the test method of RAID provided in an embodiment of the present invention；
Fig. 2 is a kind of structure chart of the test device of RAID provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, those of ordinary skill in the art are without making creative work, obtained every other
Embodiment belongs to the scope of the present invention.
Core of the invention is to provide the test method of RAID a kind of, to realize the test for writing magnification level to RAID.
Another core of the invention is to provide the test device, equipment and medium of a kind of RAID.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Embodiment one
Fig. 1 is a kind of flow chart of the test method of RAID provided in an embodiment of the present invention.Referring to FIG. 1, the survey of RAID
The specific steps of method for testing include：
Step S10：Obtaining operation has the initial IO total amount of storage system of RAID to be measured.
It should be noted that bottom storage medium of the RAID as storage system, has close between storage system
Relevance, needs to cooperate in practical applications with the storage and access for realizing user to data, when there is new data needs to deposit
When storage is to RAID, need first to be passed to storage system, and then new data is received and stored by storage system control RAID,
Therefore storage system can be interpreted as to the logic control system that control RAID carries out corresponding operating, RAID is interpreted as to storage
The hardware device of system offer storage resource.Add up the RAID since storage system can correspond to after RAID completes reading and writing data at it
I/O data amount, therefore in order to get the I/O data amount of RAID in test process, this step is tested being written to RAID to be measured
Before data, the initial IO total amount of storage system is obtained in advance, and then learns survey based on handling IO total amount in the next steps
The variable quantity of IO during examination.
Step S11：By the test data of preset data amount RAID to be measured is written, and the current IO for obtaining storage system is total
Amount.
Step S12：The difference of current IO total amount Yu initial IO total amount is calculated, and as test I/O total amount.
It is understood that the difference between current IO total amount and initial IO total amount is the variation of IO in test process
Amount, i.e. test I/O total amount.
When RAID to be measured is written in the test data of preset data amount, RAID to be measured can read stored data and with
Test data carries out data after XOR operation generation processing, then after reading stored verification data and processing in RAID to be measured
Data carry out XOR operation and generate new verification data, and RAID to be measured is finally written in data after processing and new verification data again
In, the storage to test data is completed with this.It can be seen that multiple data can be related to when RAID to be measured is written in test data
IO, therefore the test I/O total amount in test process is greater than the data volume of test data.
Step S13：It carries out doing quotient's operation using test I/O total amount and preset data amount, and generate RAID to be measured writes amplification
Multiple is using as test result.
It should be noted that being the test I/O total amount using RAID to be measured divided by test number when amplification factor is write in operation
According to preset data amount.For example, test I/O total amount is 6MB during RAID is written in the test data of 3MB, then amplification factor is
6MB/3MB=2.It above are only the citing that explanation is write the principle of operation of amplification factor and carried out, be not intended as specifically limiting.
The test method of RAID provided by the present invention, by storage system obtain RAID be written test data before with write-in
The difference of I/O data amount after test data is surveyed in this, as the IO total amount of RAID during RAID is written in test data
IO total amount is tried, due to there is the case where " writing amplification " during RAID is written in test data, test I/O total amount is answered
Greater than preset data amount, and then by carrying out doing quotient's operation to generate RAID's to be measured using test I/O total amount and preset data amount
Write amplification factor and as test result.The IO of this method storage system after the test data for obtaining write-in preset data amount becomes
After change amount, test result is generated using the operation corresponding to the progress of preset data amount of IO variable quantity, for reflecting that writing for RAID is put
Big degree realizes the test for writing magnification level to RAID.
Embodiment two
On the basis of the above embodiments, the present invention also provides a series of preferred embodiments.
As a preferred embodiment, RAID to be measured is written, and being obtained by the test data of preset data amount
Before the current IO total amount of storage system, this method further comprises：
Corresponding test case is set according to the application scenarios of RAID to be measured, and according to test case to the work of RAID to be measured
Operation mode is configured；
Correspondingly, preset data amount is specified by test case.
Due to consideration that RAID under different application scenarios, is often deposited by parameter configuration of the storage system to its inside
It, should be in a manner of simulating RAID institute to be measured Run-time scenario in order to further increase the test accuracy to RAID to be measured in difference
RAID is tested, therefore this step is to extract RAID to be measured scene locating when specifically used for test case, into
And corresponding parameter configuration is carried out to RAID to be measured according to test case, ensure that RAID to be measured can really used with it with this
Work status under scene ensure that " writing amplification " state that test result can more accurately reflect RAID to be measured.At this
A kind of preferred mode on the basis of embodiment can be that the corresponding multiple surveys of application scenarios setting of RAID to be measured are arranged
Example on probation, i.e. test case set, and target detection use-case is chosen according to testing requirement, and according to target detection use-case to be measured
RAID carries out parameter configuration.Above-mentioned preferred embodiment, which is suitable for RAID to be measured, relatively wide to be applied to a variety of fields
Scape, it is opposite improve RAID to be measured is tested it is comprehensive.
On the basis of the above embodiment, as a preferred embodiment, writing amplification in generation RAID to be measured
Multiple is using as after test result, this method further comprises：
By the test result of RAID to be measured and test case corresponding record to log.
Due to consideration that this method is the test method of RAID, it is therefore desirable to record the result of test for technology
Personnel's reference, thus generate RAID to be measured write amplification factor after, amplification factor and test will be write in a manner of mutual corresponding
Use-case is recorded to log, and then technical staff can be in log with respect to the dependence test letter for comprehensively learning target RAID to be measured
Breath and test result situation.
In addition, as a preferred embodiment, obtaining the initial IO total amount that operation has the storage system of RAID to be measured
Specially：
The initial IO total amount of storage system is obtained by Vdbench testing tool.
It should be noted that Vdbench is high stability and the memory system testing tool relatively low using difficulty,
It is easy for installation and compatible preferable.Therefore the initial IO total amount that storage system is obtained using Vdbench testing tool, can be opposite
Guarantee the overall execution efficiency of test process, and the stability for the process tested.
In addition, as a preferred embodiment, RAID to be measured specifically uses RAID5 operating mode.
Compared with other RAID operating modes, RAID5 is to be dispersed to data in all data disks to store, can relatively really
The bandwidth of the occupancy data disks of the data read-write operation equilibrium of any couple of RAID is protected, and then utmostly avoids the occurrence of resource bottleneck
The problem of, due to above-mentioned advantage, RAID5 is generally used as active user and the RAID operating mode of opposite mainstream, therefore
RAID5 is carried out to test practicability with higher.
Embodiment three
Hereinbefore the embodiment of the test method of RAID is described in detail, the present invention also provides it is a kind of with
The test device of the corresponding RAID of this method, since the embodiment of device part is corresponded to each other with the embodiment of method part, because
The embodiment of this device part refers to the description of the embodiment of method part, wouldn't repeat here.
Fig. 2 is a kind of structure chart of the test device of RAID provided in an embodiment of the present invention.It is provided in an embodiment of the present invention
The test device of RAID, including：
Module 10 is obtained, the initial IO total amount for having the storage system of RAID to be measured for obtaining operation.
Writing module 11 for the test data of preset data amount to be written to RAID to be measured, and obtains storage system
Current IO total amount.
First computing module 12, for calculating the difference of current IO total amount Yu initial IO total amount, and as test I/O total amount.
Second computing module 13 for carrying out doing quotient's operation using test I/O total amount and preset data amount, and generates to be measured
RAID's writes amplification factor using as test result.
The test device of RAID provided by the present invention, by storage system obtain RAID be written test data before with write-in
The difference of I/O data amount after test data is surveyed in this, as the IO total amount of RAID during RAID is written in test data
IO total amount is tried, due to there is the case where " writing amplification " during RAID is written in test data, test I/O total amount is answered
Greater than preset data amount, and then by carrying out doing quotient's operation to generate RAID's to be measured using test I/O total amount and preset data amount
Write amplification factor and as test result.The IO of present apparatus storage system after the test data for obtaining write-in preset data amount becomes
After change amount, test result is generated using the operation corresponding to the progress of preset data amount of IO variable quantity, for reflecting that writing for RAID is put
Big degree realizes the test for writing magnification level to RAID.
On the basis of embodiment three, which further includes：
Use-case configuration module, for corresponding test case to be arranged according to the application scenarios of RAID to be measured, and according to test
Use-case configures the operating mode of RAID to be measured；
Correspondingly, preset data amount is specified by test case.
On the basis of the above embodiment, which further includes：
Logger module, for by the test result of RAID to be measured and test case corresponding record to log.
Example IV
The present invention also provides the test equipments of RAID a kind of, including：
Memory, for storing computer program；
Processor, when for executing computer program the step of the realization such as test method of above-mentioned RAID.
The test equipment of RAID provided by the present invention, by storage system obtain RAID be written test data before with write-in
The difference of I/O data amount after test data is surveyed in this, as the IO total amount of RAID during RAID is written in test data
IO total amount is tried, due to there is the case where " writing amplification " during RAID is written in test data, test I/O total amount is answered
Greater than preset data amount, and then by carrying out doing quotient's operation to generate RAID's to be measured using test I/O total amount and preset data amount
Write amplification factor and as test result.The IO of this equipment storage system after the test data for obtaining write-in preset data amount becomes
After change amount, test result is generated using the operation corresponding to the progress of preset data amount of IO variable quantity, for reflecting that writing for RAID is put
Big degree realizes the test for writing magnification level to RAID.
The present invention also provides a kind of computer readable storage medium, computer journey is stored on computer readable storage medium
Sequence, when computer program is executed by processor the step of the realization such as test method of above-mentioned RAID.
Computer readable storage medium provided by the present invention, by storage system obtain RAID be written test data before with
Be written test data after I/O data amount difference, in this, as test data be written RAID during RAID IO total amount,
That is test I/O total amount, due to there is the case where " writing amplification " during RAID is written in test data, test I/O is total
Amount should be greater than preset data amount, and then to be measured to generate by carrying out doing quotient's operation using test I/O total amount and preset data amount
RAID's writes amplification factor and as test result.This computer readable storage medium is in the test for obtaining write-in preset data amount
After data after the IO variable quantity of storage system, test result is generated using the operation corresponding to the progress of preset data amount of IO variable quantity,
To realize the test for writing magnification level to RAID for reflecting that RAID's writes magnification level.
A kind of test method of RAID provided by the present invention, device, equipment and medium are described in detail above.
Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other embodiments not
Same place, the same or similar parts in each embodiment may refer to each other.For the device disclosed in the embodiment, due to it
It corresponds to the methods disclosed in the examples, so being described relatively simple, reference may be made to the description of the method.It should
It points out, it for those skilled in the art, without departing from the principle of the present invention, can also be to this hair
Bright some improvement and modification can also be carried out, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Claims (10)
1. a kind of test method of RAID, which is characterized in that including：
Obtaining operation has the initial IO total amount of storage system of RAID to be measured；
By the test data of preset data amount the RAID to be measured is written, and obtain the current IO total amount of the storage system；
The difference of the current IO total amount Yu the initial IO total amount is calculated, and as test I/O total amount；
It carries out doing quotient's operation using the test I/O total amount and the preset data amount, and generate the RAID to be measured writes amplification
Multiple is using as test result.
2. the method according to claim 1, wherein in the test data by preset data amount to be written
RAID to be measured is stated, and before obtaining the current IO total amount of the storage system, this method further comprises：
Corresponding test case is set according to the application scenarios of the RAID to be measured, and according to the test case to described to be measured
The operating mode of RAID is configured；
Correspondingly, the preset data amount is specified by the test case.
3. according to the method described in claim 2, it is characterized in that, it is described generate the RAID to be measured write amplification factor with
After test result, this method further comprises：
By the test result of the RAID to be measured and the test case corresponding record to log.
4. the method according to claim 1, wherein obtaining the initial IO that operation has the storage system of RAID to be measured
Total amount is specially：
The initial IO total amount of the storage system is obtained by Vdbench testing tool.
5. method according to any of claims 1-4, which is characterized in that the RAID to be measured specifically uses RAID5
Operating mode.
6. a kind of test device of RAID, which is characterized in that including：
Module is obtained, the initial IO total amount for having the storage system of RAID to be measured for obtaining operation；
Writing module for the test data of preset data amount to be written to the RAID to be measured, and obtains the storage system
Current IO total amount；
First computing module, for calculating the difference of the current IO total amount Yu the initial IO total amount, and it is total as test I/O
Amount；
Second computing module for carrying out doing quotient's operation using the test I/O total amount and the preset data amount, and generates institute
That states RAID to be measured writes amplification factor using as test result.
7. device according to claim 6, which is characterized in that the device further comprises：
Use-case configuration module, for corresponding test case to be arranged according to the application scenarios of the RAID to be measured, and according to described
Test case configures the operating mode of the RAID to be measured；
Correspondingly, the preset data amount is specified by the test case.
8. device according to claim 7, which is characterized in that the device further comprises：
Logger module, for by the test result of the RAID to be measured and the test case corresponding record to log.
9. a kind of test equipment of RAID, which is characterized in that including：
Memory, for storing computer program；
Processor realizes the test side such as RAID described in any one of claim 1 to 5 when for executing the computer program
The step of method.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes the test method such as RAID described in any one of claim 1 to 5 when the computer program is executed by processor
The step of.
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