CN107391307A - The method of testing and device of storage area network storage device snapshot functions - Google Patents
The method of testing and device of storage area network storage device snapshot functions Download PDFInfo
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- CN107391307A CN107391307A CN201710624268.6A CN201710624268A CN107391307A CN 107391307 A CN107391307 A CN 107391307A CN 201710624268 A CN201710624268 A CN 201710624268A CN 107391307 A CN107391307 A CN 107391307A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1479—Generic software techniques for error detection or fault masking
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
- G06F11/3034—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system component is a storage system, e.g. DASD based or network based
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
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Abstract
The invention discloses a kind of method of testing and device of storage area network storage device snapshot functions, and by obtaining random test file, random test file is the file for including multiple random numbers；Calculate the first MD5 values of random test file；After random test file is changed, snapshot restoring operation is carried out to amended random test file；Calculate the 2nd MD5 values of the random test file after snapshot reduction；Compare the first MD5 values and the 2nd MD5 values, judge whether unanimously, to draw snapshot functions validity test result.Test data of the application using random test file as checking snapshot restoring function, influence of the subjective factor to test result when artificially selecting test data can be overcome, improve the confidence level of test result.It can be seen that the application is advantageous to improve the confidence level of test result.
Description
Technical field
The present invention relates to technical field of measurement and test, more particularly to a kind of test of storage area network storage device snapshot functions
Method and device.
Background technology
In the big data epoch, data are a kind of intangible assets, no matter data are all for enterprise or individual, its importance
It is self-evident.
Storage area network (Storage Area Network, SAN) storage device is the carrier of data, its extensive use
In industries such as internet, finance.SAN storage devices possess high reliability, are mainly reflected in it and possess a variety of data backups, disaster tolerance
Strategy etc..And snapshot is widely used in various SAN storage devices as ripe technology of data copy scheme.
It is whether safe that the validity of SAN storage device snapshot functions directly affects business data, and SAN storage devices at present
The test of snapshot functions, the method replicated generally by selection ordinary file are carried out.Although the method for testing is easy to operate,
It is that can not really examine snapshot functions whether true because test data lacks randomness, size of data lacks the reasons such as diversity
Effect is just being played, i.e., existing snapshot functions method of testing is influenceed by subjectivity, causes test result with a low credibility.
The content of the invention
It is an object of the invention to provide a kind of method of testing and device of storage area network storage device snapshot functions, mesh
Be solve the problems, such as that the test of existing SAN storage devices snapshot functions is with a low credibility.
In order to solve the above technical problems, the present invention provides a kind of test side of storage area network storage device snapshot functions
Method, this method include：
Random test file is obtained, the random test file is the file for including multiple random numbers；
Calculate the first MD5 values of the random test file；
After the random test file is changed, snapshot restoring operation is carried out to the amended random test file；
Calculate the 2nd MD5 values of the random test file after snapshot reduction；
Compare the first MD5 values and the 2nd MD5 values, judge whether unanimously, to draw snapshot functions validity test
As a result.
Alternatively, the first MD5 values and the 2nd MD5 values, judge whether unanimously, to draw snapshot functions
Validity test result includes：
Compare the first MD5 values and the 2nd MD5 values, judge whether consistent；
If it is not, determine that the snapshot functions of current logic unit number are abnormal；
If so, determining that the snapshot functions of the current logic unit number are normal, and continue to test other LUN, directly
Test and pass through to all LUN.
Alternatively, the first MD5 values for calculating the random test file include：
Using MD5 statistical tools, the first MD5 values of the random test file are calculated.
Alternatively, the acquisition random test file includes：
After random number produces file generation random number, the random test file write by writing instrument is obtained.
In addition, present invention also offers a kind of test device of storage area network storage device snapshot functions, the device
Including：
Random test file acquisition module, for obtaining random test file, the random test file be include it is multiple
The file of random number；
First computing module, for calculating the first MD5 values of the random test file；
Snapshot recovery module, for after the random test file is changed, to the amended random test file
Carry out snapshot restoring operation；
Second computing module, for calculating the 2nd MD5 values of the random test file after snapshot reduces；
Comparison module, for the first MD5 values and the 2nd MD5 values, judge whether unanimously, to draw snapshot work(
Can validity test result.
Alternatively, the comparison module includes：
Comparing unit, for the first MD5 values and the 2nd MD5 values, judge whether consistent；
First determining unit, for if it is not, determining that the snapshot functions of current logic unit number are abnormal；
Second determining unit, for if so, determine that the snapshot functions of the current logic unit number are normal, and continue to test
Other LUN, until all LUN are tested and passed through.
Alternatively, first computing module includes：
Instrument computing unit, for utilizing MD5 statistical tools, calculate the first MD5 values of the random test file.
Alternatively, the acquisition module includes：
Acquiring unit, for after random number produces file generation random number, obtaining by writing the described of instrument write-in
Random test file.
The method of testing and device of storage area network storage device snapshot functions provided by the present invention, by obtain with
Machine test file, random test file are the file for including multiple random numbers；Calculate the first MD5 values of random test file；
After changing random test file, snapshot restoring operation is carried out to amended random test file；Calculate snapshot reduction after with
2nd MD5 values of machine test file；Compare the first MD5 values and the 2nd MD5 values, judge whether unanimously, to show that snapshot functions are effective
Property test result.Test data of the application using random test file as checking snapshot restoring function, can overcome artificial choosing
Influence of the subjective factor to test result when selecting test data, improve the confidence level of test result.It can be seen that the application is advantageous to carry
The confidence level of high test result.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is that one kind of storage area network storage device snapshot functions method of testing provided in an embodiment of the present invention is specific
The schematic flow sheet of embodiment；
Fig. 2 is that the structure of the test device of storage area network storage device snapshot functions provided in an embodiment of the present invention is shown
Meaning block diagram.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is refer to, Fig. 1 is storage area network storage device snapshot functions method of testing provided in an embodiment of the present invention
A kind of embodiment schematic flow sheet, this method comprises the following steps：
Step 101：Random test file is obtained, random test file is the file for including multiple random numbers.
It is to be appreciated that above-mentioned random test file can be specially to use in linux system/dev/urandom equipment text
The data file of the random number composition of part output, the random test file is as test data, for verifying SAN storage devices
Snapshot functions validity.Every time during test, random test file randomly generates, and can reduce artificial selection test data
Subjectivity influence, increase the convincingness of test result.Certainly, the generation means of random test file can also be it is other,
This is not construed as limiting.
After producing random test file, instrument can be write by data and write into tested SAN storage devices, therefore at this
In some embodiments of invention, the process of above-mentioned acquisition random test file can be specially：File is produced in random number to produce
After random number, the random test file write by writing instrument is obtained.
Above-mentioned write-in instrument can be specially dd instruments, i.e., random test file is write into tested storage using dd instruments sets
Standby LUN (Logical Unit Number, LUN).More specifically, order " dd can be performed in Linux server
If=/dev/urandom of=/mnt/lun1/data1.imgbs=1G count=20 ", a random number is write to LUN
According to file data1.img.
Certainly, random test file is write into tested SAN storage devices and is not limited to mode mentioned above, do not limited herein
It is fixed.
It is appreciated that each can have multiple LUN in tested SAN equipment, and LUN number can be by being manually set, example
Such as, the LUN of more than 5 is created, and each LUN capacity is all higher than 100G.After creating LUN, LUN can be hung on to Linux services
Device, to ensure that tested SAN storage devices are in stable state.
Step 102：Calculate the first MD5 values of random test file.
Above-mentioned Message Digest Algorithm 5 (Message Digest Algorithm5, MD5) value can be for verifying
The numerical value of file integrity degree, it is widely used in computer realm.
The calculation of MD5 values has a lot, can specifically be calculated using MD5sum instruments, therefore in some of the invention
In embodiment, the process of the first MD5 values of above-mentioned calculating random test file can be specially：Using MD5 statistical tools, calculate
First MD5 values of random test file.
It is clear that the process that MD5 values are calculated using MD5sum instruments is well known to those skilled in the art, herein no longer
Repeat.And the MD5 values of calculation document can also be realized otherwise, be not limited thereto.
Step 103：After random test file is changed, snapshot restoring operation is carried out to amended random test file.
It is appreciated that modification random test file can be specially delete data file, increase in the data file byte,
Change any one in some bytes of data file, some bytes of deletion data file or any combination.
The specific difference of operation is changed, the detailed process of snapshot reduction also can be accordingly different, for example, working as modification operation to delete
During except random test file, snapshot restoring operation recovers deleted random test file.
Step 104：Calculate the 2nd MD5 values of the random test file after snapshot reduction.
After the completion of snapshot reduction, it can be deduced that random test file, calculate the MD5 values of now random test file, and have
Body computational methods can utilize MD5sum instruments or other manner.
Step 105：Compare the first MD5 values and the 2nd MD5 values, judge whether unanimously, to draw snapshot functions validity test
As a result.
Calculate the 2nd MD5 after the first MD5 values and snapshot restoring operation before the snapshot restoring operation of random test file
Value, can compare whether the two numerals are identical, and whether consistent to judge to reduce front and rear file, if identical, file is consistent,
If differing, file is inconsistent, and then can draw test result.
In some embodiments of the invention, above-mentioned the MD5 values of comparison the first and the 2nd MD5 values, judge whether unanimously, to draw
The process of snapshot functions validity test result can be specially：Compare the first MD5 values and the 2nd MD5 values, judge whether consistent；
If it is not, determine that the snapshot functions of current logic unit number are abnormal；If so, determine that the snapshot functions of current logic unit number are normal,
And continue to test other LUN, until all LUN are tested and passed through.
Specifically, when the first MD5 values are consistent with the 2nd MD5 values, it is believed that current LUN snapshot functions, which do not exist, to be lacked
Fall into, continue to carry out other LUN successively similar test, until LUN all on equipment under test is tested when passing through, it is believed that tested
The snapshot functions of SAN storage devices do not have defect.When the first MD5 values and inconsistent the 2nd MD5 values, it is believed that tested SAN storages
The snapshot functions of equipment are defective.
The method of testing for the storage area network storage device snapshot functions that the present embodiment is provided, by obtaining random survey
File is tried, random test file is the file for including multiple random numbers；Calculate the first MD5 values of random test file；Changing
After random test file, snapshot restoring operation is carried out to amended random test file；Calculate the random survey after snapshot reduction
Try the 2nd MD5 values of file；Compare the first MD5 values and the 2nd MD5 values, judge whether unanimously, to show that snapshot functions validity is surveyed
Test result.Test data of this method using random test file as checking snapshot restoring function, can overcome artificial selection to survey
Influence of the subjective factor to test result during data is tried, improves the confidence level of test result.
The test device of storage area network storage device snapshot functions provided in an embodiment of the present invention is situated between below
Continue, test device and the above-described storage area network of storage area network storage device snapshot functions described below are deposited
The method of testing for storing up equipment snapshot functions can be mutually to should refer to.
Fig. 2 is refer to, Fig. 2 is that the test of storage area network storage device snapshot functions provided in an embodiment of the present invention fills
The structural schematic block diagram put, the device include：
Random test file acquisition module 21, for obtaining random test file, random test file be include it is multiple with
The file of machine number；
First computing module 22, for calculating the first MD5 values of random test file；
Snapshot recovery module 23, for after random test file is changed, being carried out to amended random test file fast
According to restoring operation；
Second computing module 24, for calculating the 2nd MD5 values of the random test file after snapshot reduces；
Comparison module 25, for comparing the first MD5 values and the 2nd MD5 values, judge whether unanimously, to show that snapshot functions are effective
Property test result.
Preferably, comparison module can include：
Comparing unit, for comparing the first MD5 values and the 2nd MD5 values, judge whether consistent；
First determining unit, for if it is not, determining that the snapshot functions of current logic unit number are abnormal；
Second determining unit, for if so, determine that the snapshot functions of current logic unit number are normal, and continue to test other
LUN, until all LUN are tested and passed through.
Preferably, the first computing module can include：
Instrument computing unit, for utilizing MD5 statistical tools, calculate the first MD5 values of random test file.
Preferably, acquisition module can include：
Acquiring unit, for after random number produces file generation random number, obtaining by writing the random of instrument write-in
Test file.
The method of testing for the storage area network storage device snapshot functions that the present embodiment is provided, by by random test
Test data of the file as checking snapshot restoring function, subjective factor is tied to test when can overcome artificial selection test data
The influence of fruit, improve the confidence level of test result.
Each embodiment is described by the way of progressive in specification, and what each embodiment stressed is and other realities
Apply the difference of example, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
Speech, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is referring to method part illustration
.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, the composition and step of each example are generally described according to function in the above description.These
Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty
Technical staff can realize described function using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
Directly it can be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The method of testing to storage area network storage device snapshot functions provided by the present invention and device are carried out above
It is discussed in detail.Specific case used herein is set forth to the principle and embodiment of the present invention, above example
Explanation be only intended to help understand the present invention method and its core concept.It should be pointed out that for the common of the art
For technical staff, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these
Improve and modification is also fallen into the protection domain of the claims in the present invention.
Claims (8)
- A kind of 1. method of testing of storage area network storage device snapshot functions, it is characterised in that including：Random test file is obtained, the random test file is the file for including multiple random numbers；Calculate the first MD5 values of the random test file；After the random test file is changed, snapshot restoring operation is carried out to the amended random test file；Calculate the 2nd MD5 values of the random test file after snapshot reduction；Compare the first MD5 values and the 2nd MD5 values, judge whether unanimously, to draw snapshot functions validity test result.
- 2. the method for testing of storage area network storage device snapshot functions as claimed in claim 1, it is characterised in that described Compare the first MD5 values and the 2nd MD5 values, judge whether unanimously, to show that snapshot functions validity test result includes：Compare the first MD5 values and the 2nd MD5 values, judge whether consistent；If it is not, determine that the snapshot functions of current logic unit number are abnormal；If so, determining that the snapshot functions of the current logic unit number are normal, and continue to test other LUN, until institute There is LUN to test to pass through.
- 3. the method for testing of storage area network storage device snapshot functions as claimed in claim 2, it is characterised in that described Calculating the first MD5 values of the random test file includes：Using MD5 statistical tools, the first MD5 values of the random test file are calculated.
- 4. the method for testing of the storage area network storage device snapshot functions as described in any one of claims 1 to 3, its feature It is, the acquisition random test file includes：After random number produces file generation random number, the random test file write by writing instrument is obtained.
- A kind of 5. test device of storage area network storage device snapshot functions, it is characterised in that including：Random test file acquisition module, for obtaining random test file, the random test file be include it is multiple random Several files；First computing module, for calculating the first MD5 values of the random test file；Snapshot recovery module, for after the random test file is changed, being carried out to the amended random test file Snapshot restoring operation；Second computing module, for calculating the 2nd MD5 values of the random test file after snapshot reduces；Comparison module, use In the first MD5 values and the 2nd MD5 values, judge whether unanimously, to draw snapshot functions validity test result.
- 6. the test device of storage area network storage device snapshot functions as claimed in claim 5, it is characterised in that described Comparison module includes：Comparing unit, for the first MD5 values and the 2nd MD5 values, judge whether consistent；First determining unit, for if it is not, determining that the snapshot functions of current logic unit number are abnormal；Second determining unit, for if so, determine that the snapshot functions of the current logic unit number are normal, and continue to test other LUN, until all LUN are tested and passed through.
- 7. the test device of storage area network storage device snapshot functions as claimed in claim 6, it is characterised in that described First computing module includes：Instrument computing unit, for utilizing MD5 statistical tools, calculate the first MD5 values of the random test file.
- 8. the test device of the storage area network storage device snapshot functions as described in any one of claim 5 to 7, its feature It is, the acquisition module includes：Acquiring unit, for after random number produces file generation random number, obtaining by writing the described random of instrument write-in Test file.
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Application publication date: 20171124 |
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