CN109151454A - A kind of test abnormal power-down loses the method and system of data volume - Google Patents
A kind of test abnormal power-down loses the method and system of data volume Download PDFInfo
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- CN109151454A CN109151454A CN201810834597.8A CN201810834597A CN109151454A CN 109151454 A CN109151454 A CN 109151454A CN 201810834597 A CN201810834597 A CN 201810834597A CN 109151454 A CN109151454 A CN 109151454A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0829—Packet loss
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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
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64723—Monitoring of network processes or resources, e.g. monitoring of network load
- H04N21/64738—Monitoring network characteristics, e.g. bandwidth, congestion level
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Computer Security & Cryptography (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Abstract
The present invention provides a kind of method and system of test abnormal power-down loss data volume, and after default length of testing speech, fatigue machine, which disconnects, gives storage equipment power supply, while the data volume of the current data accepted server transport of database of record；Fatigue machine gives storage equipment power supply again, makes to store equipment starting；Statistics storage equipment stored up into data volume；Comparison has stored up the data volume into database and has stored up the difference of the data volume into storage equipment.By the application of fatigue machine, the connecting and disconnecting of control storage equipment power supply may be implemented easily to simulate the abnormal power-down in practical application scene and power on.By recording the comparison difference of the data volume and practical reception amount that have sent, the data volume lost during a powered-off fault can be accurately calculated.It can be performed a plurality of times, to determine the value range of data volume loss.
Description
Technical field
The method of data volume is lost the present invention relates to storage testing field more particularly to a kind of test abnormal power-down and is
System.
Background technique
Storage market keeps the impetus of rapid growth in recent years at present, and the fast-developing of Video Surveillance Industry drives concentration to deposit
The demand of storage.The single control one-way network storage system of high performance-price ratio, facing video monitoring industry, the branch of large enterprise
Deng providing the solutions such as IPSAN and NAS.Due to the price of single control storage equipment and the limitation of configuration etc., single control storage
Equipment do not configure generally the technologies such as BBU carry out power-down data protection, after abnormal power-down, can not the data rule in caching,
It will lead to partial loss.Do not ensure that one direct power supply of equipment is normal in the working environment of real world devices.Under in view of the situation,
After abnormal power-down, the measurement for losing data is to need specific index as research staff.In actual operation, for
The problem of test powered-off fault leads to loss of data, there is no the data volumes that specific test method can accurately capture loss.
Summary of the invention
In order to overcome the deficiencies in the prior art described above, the present invention provides a kind of side of test abnormal power-down loss data volume
Method characterized by comprising
Step 1 gives storage equipment power supply by fatigue machine；
Step 2 establishes the data transmission map relationship of storage equipment and data server；
Step 3 establishes the data transmission map relationship of data server and database；
Step 4, the transmission of log-on data server data stream, by data flow, synchronous transfer gives storage to data server simultaneously
Equipment and database；
Step 5, after default length of testing speech, fatigue machine, which disconnects, gives storage equipment power supply, while database of record is current
The data volume of data accepted server transport；
Step 6, fatigue machine give storage equipment power supply again, make to store equipment starting；
Step 7, statistics storage equipment stored up into data volume；
Step 8, comparison have stored up the data volume into database and have stored up the difference of the data volume into storage equipment.
Preferably, step 1 further include:
Setting fatigue machine is AC power supply mode；After fatigue machine power down, powered on automatically after the first preset duration；
The time that configuration fatigue machine continues working after powering on.
Preferably, step 2 further include:
NAS volumes of device map of storage establishes data transmission map relationship with NFS protocol and data server.
Preferably, step 4 further include:
Data server is respectively logical using multiplexing with the transmission mode of the transmission mode of storage equipment and database
Road, transmits 4M code stream, and the data block size of transmission is 1M.
Preferably, after step 4 further include:
Transmitting data stream of the data server respectively with the transmitting data stream fluctuation range of storage equipment and database fluctuates
In preset threshold, the difference of the transmitting data stream fluctuation range of equipment and the transmitting data stream fluctuation range of database is stored
Within the scope of preset difference value, record data stream transmission start time point, after data stream transmitting reaches preset duration, fatigue machine is disconnected
Storage equipment power supply is given, record data stream is transmitted time point；
Count the database in default length of testing speech stored up into data volume and storage equipment stored up into data volume；
Compare in default length of testing speech, database stored up into data volume and storage equipment stored up into data volume difference
Value.
The system that a kind of test abnormal power-down loses data volume, comprising: fatigue machine stores equipment, data server, data
Library, timing module, database data amount logging modle, storage device data amount logging modle and comparison module；
Fatigue machine is used to give storage equipment power supply, makes to store equipment work；
Data server is used to establish data transmission map relationship with storage equipment, and transmits with Database data
Mapping relations；And log-on data server data stream is transmitted, and by data flow, synchronous transfer gives storage equipment and database simultaneously；
Timing module records length of testing speech for obtaining default length of testing speech；
Fatigue machine is also used to after default length of testing speech, and fatigue machine, which disconnects, gives storage equipment power supply；
When database data amount logging modle is disconnected for fatigue machine to storage equipment power supply, database of record has currently been connect
Receive the data volume of data server transmission；
Fatigue machine is also used to give storage equipment power supply again, makes to store equipment starting；
Storage device data amount logging modle for store equipment starting after, statistics storage equipment stored up into data volume；
Comparison module is for comparing the difference stored up the data volume into database and stored up the data volume into storage equipment.
Preferably, fatigue machine is also used to be set as AC power supply mode；After fatigue machine power down, after the first preset duration
Automatically it powers on；The time that configuration continues working after powering on.
Preferably, storage equipment is also used to map NAS volumes, establishes data transmission map with NFS protocol and data server
Relationship.
Preferably, data server is also used to be respectively to adopt with the transmission mode of the transmission mode of storage equipment and database
With multiplexer channel, 4M code stream is transmitted, the data block size of transmission is 1M.
Preferably, timing module is also used to transmitting data stream fluctuation range sum number of the data server respectively with storage equipment
It is fluctuated in preset threshold according to the transmitting data stream in library, stores the transmitting data stream fluctuation range of equipment and the biography of database
Within the scope of preset difference value, record data stream transmission start time point, data stream transmitting reaches the difference of transmission of data stream fluctuation range
After preset duration, fatigue machine, which disconnects, gives storage equipment power supply, and record data stream is transmitted time point；
Database data amount logging modle is also used to count in default length of testing speech, database stored up into data volume；
Storage device data amount logging modle is also used to count in default length of testing speech, storage equipment stored up into data
Amount；
Comparison module is also used to compare in default length of testing speech, database stored up into data volume stored up with equipment is stored
The difference of the data volume entered.
As can be seen from the above technical solutions, the invention has the following advantages that
The present invention controls the connecting and disconnecting of storage equipment power supply, convenient mould may be implemented by the application of fatigue machine
Intend the abnormal power-down in practical application scene and powers on.By the contrast differences for recording the data volume and practical reception amount that have sent
Value can accurately calculate the data volume lost during a powered-off fault.It can be performed a plurality of times, to determine that data volume is lost
The value range of mistake.
And in order to improve the accuracy of amount of test data amount lost, the data server transmission number with storage equipment respectively
It is fluctuated in preset threshold according to the transmitting data stream of stream fluctuation range and database, the transmitting data stream fluctuation of storage equipment
The difference of range and the transmitting data stream fluctuation range of database is within the scope of preset difference value, record data stream transmission start time
Point, after data stream transmitting reaches preset duration, fatigue machine, which disconnects, gives storage equipment power supply, and record data stream is transmitted the time
Point；Count the database in default length of testing speech stored up into data volume and storage equipment stored up into data volume；It compares
In default length of testing speech, database stored up into data volume and storage equipment stored up into data volume difference.It can make in this way
Carry out data transmission and record storage capacity in the stable situation of data flow, reduces the external action in data communication process.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, attached drawing needed in description will be made below simple
Ground introduction, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ordinary skill
For personnel, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the method flow diagram tested abnormal power-down and lose data volume；
Fig. 2 is the system schematic tested abnormal power-down and lose data volume.
Specific embodiment
The present invention provides a kind of method of test abnormal power-down loss data volume, as shown in Figure 1, comprising:
Step 1 gives storage equipment power supply by fatigue machine；
Step 2 establishes the data transmission map relationship of storage equipment and data server；
Step 3 establishes the data transmission map relationship of data server and database；
Step 4, the transmission of log-on data server data stream, by data flow, synchronous transfer gives storage to data server simultaneously
Equipment and database；
Step 5, after default length of testing speech, fatigue machine, which disconnects, gives storage equipment power supply, while database of record is current
The data volume of data accepted server transport；
Step 6, fatigue machine give storage equipment power supply again, make to store equipment starting；
Step 7, statistics storage equipment stored up into data volume；
Step 8, comparison have stored up the data volume into database and have stored up the difference of the data volume into storage equipment.
It in order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below will be with specific
Examples and drawings, the technical solution protected to the present invention are clearly and completely described, it is clear that implementation disclosed below
Example is only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiment in this patent, the common skill in this field
Art personnel all other embodiment obtained without making creative work belongs to the model of this patent protection
It encloses.
In embodiment provided by the invention, step 1 further include: setting fatigue machine is AC power supply mode；When fatigue machine power down
Afterwards, it is powered on automatically after the first preset duration；The time that configuration fatigue machine continues working after powering on.
In embodiment provided by the invention, step 2 further include: NAS volumes of device map of storage is taken with NFS protocol and data
Business device establishes data transmission map relationship.
If realized within hardware, the present invention relates to a kind of devices, such as can be used as processor or integrated circuit dress
It sets, such as IC chip or chipset.Alternatively or additionally, if realized in software or firmware, the technology can
Realize at least partly by computer-readable data storage medium, including instruction, when implemented, make processor execute one or
More above methods.For example, computer-readable data storage medium can store the instruction such as executed by processor.
In embodiment provided by the invention, step 4 further include: data server respectively with storage equipment transmission mode
Transmission mode with database is to transmit 4M code stream using multiplexer channel, and the data block size of transmission is 1M.
Method and device of the invention may be achieved in many ways.For example, can by software, hardware, firmware or
Person's software, hardware, firmware any combination realize method and device of the invention.The step of for the method it is above-mentioned
Sequence is merely to be illustrated, and the step of method of the invention is not limited to sequence described in detail above, unless with other sides
Formula illustrates.In addition, in some embodiments, the present invention can be also embodied as recording program in the recording medium, these
Program includes for realizing machine readable instructions according to the method for the present invention.Thus, the present invention also covers storage for executing
The recording medium of program according to the method for the present invention.
In embodiment provided by the invention, storage equipment power supply is given by fatigue machine；Establish storage equipment and data server
Data transmission map relationship；Establish the data transmission map relationship of data server and database；Log-on data server count
Defeated according to spreading, by data flow, synchronous transfer gives storage equipment and database to data server simultaneously；
Transmitting data stream of the data server respectively with the transmitting data stream fluctuation range of storage equipment and database fluctuates
In preset threshold, the difference of the transmitting data stream fluctuation range of equipment and the transmitting data stream fluctuation range of database is stored
Within the scope of preset difference value, record data stream transmission start time point, after data stream transmitting reaches preset duration, fatigue machine is disconnected
Storage equipment power supply is given, record data stream is transmitted time point；Count the database in default length of testing speech stored up into number
According to measure and storage equipment stored up into data volume；Compare in default length of testing speech, database stored up into data volume with deposit
Storage equipment stored up into data volume difference.Fatigue machine gives storage equipment power supply again, makes to store equipment starting；Statistics storage is set
It is standby stored up into data volume；Comparison has stored up the data volume into database and has stored up the difference of the data volume into storage equipment.
The present invention also provides the systems that a kind of test abnormal power-down loses data volume, as shown in Figure 2, comprising: fatigue machine 1,
Store equipment 2, data server 3, database 4, timing module 5, database data amount logging modle 6, storage device data amount
Logging modle 7 and comparison module 8；
Fatigue machine 1 is used to power to storage equipment 2, and storage equipment 2 is made to work；Data server 3 is used for and storage equipment 2
Data transmission map relationship is established, and establishes data transmission map relationship with database 4；And the number of log-on data server 3
Defeated according to spreading, by data flow, synchronous transfer gives storage equipment 2 and database 4 simultaneously；When timing module 5 is for obtaining default test
It is long, and record length of testing speech；Fatigue machine 1 is also used to after default length of testing speech, and fatigue machine 1 is disconnected powers to storage equipment 2；
When database data amount logging modle 6 is disconnected for fatigue machine 1 to the storage power supply of equipment 2, database of record 4 has currently received number
The data volume transmitted according to server 3；Fatigue machine 1 is also used to power to storage equipment 2 again, makes to store the starting of equipment 2；Storage is set
After standby data volume logging modle 7 starts for storing equipment 2, statistics storage equipment 2 stored up into data volume；Comparison module 8 is used
The data volume into database 4 has been stored up in comparison and has stored up the difference of the data volume into storage equipment 2.
In embodiment provided by the invention, fatigue machine 1 is also used to be set as AC power supply mode；After 1 power down of fatigue machine, warp
It is powered on automatically after crossing the first preset duration；The time that configuration continues working after powering on.Storage equipment 2 is also used to map NAS volumes, with
NFS protocol and data server 3 establish data transmission map relationship.Data server 3 is also used to the biography with storage equipment 2 respectively
Defeated mode and the transmission mode of database 4 are to transmit 4M code stream using multiplexer channel, and the data block size of transmission is 1M.
In embodiment provided by the invention, timing module 5 is also used to transmission of the data server 3 respectively with storage equipment 2
The transmitting data stream of data flow fluctuation range and database 4 fluctuates in preset threshold, stores the transmitting data stream of equipment 2
The difference of fluctuation range and the transmitting data stream fluctuation range of database 4 is within the scope of preset difference value, record data stream transmission starting
At time point, after data stream transmitting reaches preset duration, fatigue machine 1 is disconnected powers to storage equipment 2, and record data stream is transmitted
Time point；Database data amount logging modle 6 is also used to count in default length of testing speech, database 4 stored up into data volume；
Storage device data amount logging modle 7 is also used to count in default length of testing speech, storage equipment 2 stored up into data volume；Than
Module 8 is also used to compare in default length of testing speech, database 4 stored up into data volume and storage equipment 2 stored up into number
According to the difference of amount.
The technical solution being related in order to further illustrate the present invention, setting is controlled by fatigue machine 1 to supply to storage equipment 2
Electricity.Fatigue machine 1 is arranged AC and powers, and power down powers on automatically after 20 seconds.Power on the duration 30 minutes.Store equipment 2 and server
It establishes mapping relations storage equipment 2 and maps NAS volumes, with NFS protocol and Linux server opening relationships.
Use mount-t nfs IP:/fs/nfs_server_dir/tmp/nfs_client_dir.
The client of the deployment write-in video code flow of data server 3.
Translation and compiling environment, test command btest.Import lib packet, libtcmalloc.so.4 with
libtcmalloc.so.4.4.5
Establish the data transmission map relationship of data server 3 Yu database 4；Start video code flow write-in.Start 100 tunnels
The write-in of 4M code stream 1M block size.
Specifically ,/btest-b 1024-w 100-p/fs/nfs_server_dir/-l/var/log/-s 38-i 1-v
4096
Database 4 records the data volume that video code flow is sent.Btest order is every to send a data block i.e. in database 4
Data of middle record.After stabilization, fatigue machine 1 is powered off.Stablize after sending 30 minutes, fatigue machine 1 automatically powers off.Restarting
Afterwards, the data volume that statistics storage end has been written into.The disk size used is checked under the disk of storage 2 carry of equipment.It is right
The numerical value a*1M*100-recorded in the difference data library 4 of data volume being written than the data volume that database 4 records with storage end is deposited
Store up end disk size, the data volume as lost.By the application of fatigue machine 1, connection that control storage equipment 2 is powered with
It disconnects, may be implemented easily to simulate the abnormal power-down in practical application scene and powers on.By recording the data volume sent
With the comparison difference of practical reception amount, the data volume lost during a powered-off fault can be accurately calculated.It can be more
Secondary execution, to determine the value range of data volume loss.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of method that test abnormal power-down loses data volume characterized by comprising
Step 1 gives storage equipment power supply by fatigue machine；
Step 2 establishes the data transmission map relationship of storage equipment and data server；
Step 3 establishes the data transmission map relationship of data server and database；
Step 4, the transmission of log-on data server data stream, by data flow, synchronous transfer gives storage equipment to data server simultaneously
And database；
Step 5, after default length of testing speech, fatigue machine, which disconnects, gives storage equipment power supply, while database of record has currently connect
Receive the data volume of data server transmission；
Step 6, fatigue machine give storage equipment power supply again, make to store equipment starting；
Step 7, statistics storage equipment stored up into data volume；
Step 8, comparison have stored up the data volume into database and have stored up the difference of the data volume into storage equipment.
2. the method that test abnormal power-down according to claim 1 loses data volume, which is characterized in that
Step 1 further include:
Setting fatigue machine is AC power supply mode；After fatigue machine power down, powered on automatically after the first preset duration；
The time that configuration fatigue machine continues working after powering on.
3. the method that test abnormal power-down according to claim 1 loses data volume, which is characterized in that
Step 2 further include:
NAS volumes of device map of storage establishes data transmission map relationship with NFS protocol and data server.
4. the method that test abnormal power-down according to claim 1 loses data volume, which is characterized in that
Step 4 further include:
Data server is respectively to be passed using multiplexer channel with the transmission mode of the transmission mode of storage equipment and database
Defeated 4M code stream, the data block size of transmission are 1M.
5. the method that test abnormal power-down according to claim 1 loses data volume, which is characterized in that
After step 4 further include:
Transmitting data stream fluctuation of the data server respectively with the transmitting data stream fluctuation range of storage equipment and database exists
In preset threshold, the difference of the transmitting data stream fluctuation range of equipment and the transmitting data stream fluctuation range of database is stored pre-
If in difference range, record data stream transmission start time point, after data stream transmitting reaches preset duration, fatigue machine is disconnected to depositing
Equipment power supply is stored up, record data stream is transmitted time point；
Count the database in default length of testing speech stored up into data volume and storage equipment stored up into data volume；
Compare in default length of testing speech, database stored up into data volume and storage equipment stored up into data volume difference.
6. the system that a kind of test abnormal power-down loses data volume characterized by comprising fatigue machine stores equipment, data clothes
Business device, database, timing module, database data amount logging modle, storage device data amount logging modle and comparison module；
Fatigue machine is used to give storage equipment power supply, makes to store equipment work；
Data server is used to establish data transmission map relationship with storage equipment, and with Database data transmission map
Relationship；And log-on data server data stream is transmitted, and by data flow, synchronous transfer gives storage equipment and database simultaneously；
Timing module records length of testing speech for obtaining default length of testing speech；
Fatigue machine is also used to after default length of testing speech, and fatigue machine, which disconnects, gives storage equipment power supply；
When database data amount logging modle is disconnected for fatigue machine to storage equipment power supply, database of record has currently received number
According to the data volume of server transport；
Fatigue machine is also used to give storage equipment power supply again, makes to store equipment starting；
Storage device data amount logging modle for store equipment starting after, statistics storage equipment stored up into data volume；
Comparison module is for comparing the difference stored up the data volume into database and stored up the data volume into storage equipment.
7. the system that test abnormal power-down according to claim 6 loses data volume, which is characterized in that
Fatigue machine is also used to be set as AC power supply mode；After fatigue machine power down, powered on automatically after the first preset duration；Match
Set the time continued working after powering on.
8. the system that test abnormal power-down according to claim 6 loses data volume, which is characterized in that
Storage equipment is also used to map NAS volumes, establishes data transmission map relationship with NFS protocol and data server.
9. the system that test abnormal power-down according to claim 6 loses data volume, which is characterized in that
Data server is also used to be respectively using multiplexing with the transmission mode of the transmission mode of storage equipment and database
Channel, transmits 4M code stream, and the data block size of transmission is 1M.
10. the system that test abnormal power-down according to claim 6 loses data volume, which is characterized in that
Timing module is also used to transmission of the data server respectively with the transmitting data stream fluctuation range of storage equipment and database
Data flow fluctuates in preset threshold, stores the transmitting data stream fluctuation range of equipment and the transmitting data stream wave of database
The difference of dynamic range is within the scope of preset difference value, record data stream transmission start time point, after data stream transmitting reaches preset duration,
Fatigue machine, which disconnects, gives storage equipment power supply, and record data stream is transmitted time point；
Database data amount logging modle is also used to count in default length of testing speech, database stored up into data volume；
Storage device data amount logging modle is also used to count in default length of testing speech, storage equipment stored up into data volume；
Comparison module is also used to compare in default length of testing speech, database stored up into data volume and storage equipment stored up into
The difference of data volume.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116932303A (en) * | 2023-09-14 | 2023-10-24 | 合肥康芯威存储技术有限公司 | Storage test equipment and test method thereof |
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| CN107391324A (en) * | 2017-06-30 | 2017-11-24 | 郑州云海信息技术有限公司 | The test control device and method of a kind of storage system |
| CN107452427A (en) * | 2017-08-03 | 2017-12-08 | 郑州云海信息技术有限公司 | A kind of method of testing and system of storage device data integrality |
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