CN107766003A - One kind storage dual-active method, apparatus, system and computer-readable recording medium - Google Patents
One kind storage dual-active method, apparatus, system and computer-readable recording medium Download PDFInfo
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- CN107766003A CN107766003A CN201711049643.5A CN201711049643A CN107766003A CN 107766003 A CN107766003 A CN 107766003A CN 201711049643 A CN201711049643 A CN 201711049643A CN 107766003 A CN107766003 A CN 107766003A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/061—Improving I/O performance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
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Abstract
This application discloses one kind storage dual-active method, apparatus, system and computer-readable recording medium, this method to include：Two nodes in each I O access group are deployed in the production website with respective site perceptional function respectively, obtain corresponding SVC nodes, to ensure that the I/O read-writes of each production site hosts only interact with local node；The Selection of chiller of any production website reads data from the storage of the website attribute identical rear end of respective nodes, and function is locally read to realize；The main frame of any production website sends write request to any SVC nodes, will write data receiving writing for SVC nodes return after response and send to the SVC nodes；Write data are mirrored to corresponding SVC nodes in another production website by the VDM, and the rear end that write data are respectively written into corresponding production website stores, and realizes locally-written function.Storage dual-active method disclosed by the invention can effectively reduce the loss for seeing storage performance on the premise of storage dual-active is realized.
Description
Technical field
The present invention relates to storage dual-active technical field, more particularly to a kind of storage dual-active method, apparatus, system and computer
Readable storage medium storing program for executing.
Background technology
Data are one of most important assets of any company, and to ensure data continuity, storage dual-active system is arisen at the historic moment.
But head end complex application, such as：VMware, Oracle RAC (real application clusters, i.e. application in real time
Cluster) etc. large construction cluster collocation store dual-active function when problems be present, wherein, compare distinct issues be due to storage
The problem of storage overall performance declines caused by dual-active remote access, client are to ensure that data high availability has to receive storage
The decline of performance.
Therefore, a kind of storage dual-active method how is provided, effectively to reduce storage on the premise of storage dual-active is realized
The loss of energy, is those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
In view of this, it is an object of the invention to provide one kind to store dual-active method, by storing I/O Group
The cross directional stretch of (Input/Output Group, i.e. I O access group), local read-write is realized, on the premise of storage dual-active is realized
Effectively reduce storage performance loss.Its concrete scheme is as follows：
One kind storage dual-active method, including：
Two nodes in each I O access group are deployed in the production website with respective site perceptional function respectively, obtained
Corresponding SVC nodes, to ensure that the I/O read-writes of each production site hosts only interact with local node；
The Selection of chiller of any production website reads data from the storage of the website attribute identical rear end of respective nodes, with
Realize local reading function；
The main frame of any production website sends write request to any SVC nodes, should receiving writing for SVC nodes return
Data will be write after answering to send to the SVC nodes；Write data are mirrored to corresponding in another production website by the VDM
SVC nodes, the rear end that write data are respectively written into corresponding production website store, and realize locally-written function.
Preferably, this method also includes：
The storage arbitrated on website assigns activity arbitration function to the mdisk arbitrated in website storage；Wherein, it is described
There is heartbeat between arbitration website and each production website, to prevent fissure phenomenon from occurring.
Preferably, the website perceptional function is including local reading I/O optimizes function, locally-written I/O optimizes function and true
Protect I/O localization functions.
Preferably, the main frame of any production website sends write request to any SVC nodes, is receiving SVC sections
What point returned, which write, will write data after response and send to the SVC nodes；Write data are mirrored to another production stations by the VDM
Corresponding SVC nodes in point, the rear end that write data are respectively written into corresponding production website store, and realize locally-written function
The step of, including：
Step 1：Main frame sends write request to the first SVC nodes；
Step 2：The first SVC nodes return to the main frame and write ready message；
Step 3：The main frame sends to the first SVC nodes and writes data；
Step 4：Write buffer data image is produced by corresponding 2nd SVC nodes in website to another by the VDM；
Step 5：The 2nd SVC nodes return to the first SVC nodes and write complete mark；
Step 6：The first SVC nodes return to the main frame and write complete mark；
Step 7：The rear end storage transmission of the first SVC nodes and the 2nd SVC nodes to corresponding production website is write
Request；
Step 8：Corresponding rear end storage returns to the first SVC nodes and the 2nd SVC nodes respectively writes thread
Message；
Step 9：The first SVC nodes and the 2nd SVC nodes write data to the storage transmission of corresponding rear end respectively；
Step 10：Rear end storage returns to the first SVC nodes and the 2nd SVC nodes write complete mark respectively,
Complete whole write operation.
Preferably, it is described that two nodes in each I O access group are deployed in the life with respective site perceptional function respectively
Produce website, the step of obtaining corresponding SVC nodes, in addition to：
Production website perceives the situation of all SVC nodes of the website according to corresponding website perceptional function.
Preferably, the Selection of chiller of any production website stores from the website attribute identical rear end of respective nodes
The step of reading data, including：
Judge that current SVC nodes whether there is failure；If it is, it is switched to other SVC nodes for being in normal condition.
Preferably, the main frame of any production website sends the step of write request to the corresponding node of any I O access group
Suddenly, in addition to：
Judge whether two SVC nodes in current I O access group have failure；If it is, it is any to be switched to other
I O access group.
Accordingly, present invention also offers one kind to store dual-active device, including：
Node deployment module, work(is perceived with respective site for two nodes in each I O access group to be deployed in respectively
The production website of energy, obtains corresponding SVC nodes, to ensure that the I/O read-writes of each production site hosts are only sent out with local node
Raw interaction；
Local to read functional module, the Selection of chiller for any production website is from the website attribute identical with respective nodes
Data are read in rear end storage, to realize local reading function；
Locally-written functional module, the main frame for any production website send write request to any SVC nodes, received
What the SVC nodes returned, which write, will write data after response and send to the SVC nodes；Write data are mirrored to separately by the VDM
Corresponding SVC nodes in one production website, the rear end that write data are respectively written into corresponding production website store, and realize this
Write function in ground.
Preferably, the device also includes：
Arbitration modules, activity arbitration function is assigned in the arbitration website storage for arbitrating the storage on website
mdisk；Wherein, there is heartbeat between the arbitration website and each production website, to prevent fissure phenomenon from occurring.
Accordingly, present invention also offers one kind to store dual-active system, including stores the life described in dual-active method as described above
Produce website, SVC nodes and arbitration website.
Accordingly, present invention also offers a kind of computer-readable recording medium, on the computer-readable recording medium
Computer program is stored with, the step of storing dual-active method as described above is realized when the computer program is executed by processor.
Storage dual-active method disclosed by the invention has the advantages that, first by two nodes in each I O access group
The production website with respective site perceptional function is deployed in respectively, obtains corresponding SVC nodes, to ensure each production website
The I/O read-writes of main frame only interact with local node；Main frame under any production stations point needs to carry out data read operation
When, the Selection of chiller of any production website reads data from the storage of the website attribute identical rear end of respective nodes, to realize
It is local to read function；Main frame under any production stations point need carry out data write operation when, it is any production website main frame to
Any SVC nodes send write request, will write data receiving writing for SVC nodes return after response and send to the SVC nodes；
Write data are mirrored to corresponding SVC nodes in another production website by the VDM, and write data are respectively written into
The rear end storage of corresponding production website, realizes locally-written function.
Two nodes are deployed in the different production websites with respective site perceptional function respectively in each I O access group, and two
The individual production equal on-line operation of website, this is done to which two nodes in each I O access group are carried out into cross-site stretching, and on
The website perceptional function for stating production website ensure that the read-write operation of main frame is local operation, avoids cross-site data and visits
The problem of IO readwrite performances asked and brought decline.As can be seen here, storage dual-active method disclosed by the invention can store realizing
The loss for seeing storage performance is effectively reduced on the premise of dual-active.
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.
A kind of Fig. 1 storage dual-active method flow diagrams disclosed by the invention；
Fig. 2 is a kind of specific storage dual-active method flow diagram disclosed by the invention；
Fig. 3 is that the main frame in a kind of specific storage dual-active method disclosed by the invention under any production website needs to carry out
Particular flow sheet during data write operation；
Fig. 4 is a kind of storage dual-active apparatus structure schematic diagram disclosed by the invention；
Fig. 5 is a kind of storage dual-active system structure diagram disclosed by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The embodiment of the invention discloses one kind to store dual-active method, and shown in Figure 1, this method includes：
Step S11：Two nodes in each I O access group are deployed in the production with respective site perceptional function respectively
Website, corresponding SVC nodes are obtained, to ensure that the I/O read-writes of each production site hosts only interact with local node.
It should be noted that in the embodiment of the present application, above-mentioned each I O access group is the demand according to actual conditions, will
Each I O access group in the required I O access group quantity planned in advance, can be with an I O access group or multiple
I O access group.In addition, the least unit that storage externally provides service is an IO_Group, i.e. I O access group, wherein, one
IO_Group is made up of two node (node), and each I/O Group two nodes are deployed in two production websites respectively.
In the embodiment of the present application, above-mentioned production website is two numbers for geographically mutually separating but possessing same resource
Rear end storage or the database of data are provided according to data center, or two for business.Every IO can be visited by step S11
Two cross-site stretchings of node in group are asked, so that I/O can be according to actual conditions automatic switchover node.
Step S12：The Selection of chiller of any production website stores reading from the website attribute identical rear end of respective nodes
Access evidence, to realize local reading function.
It should be noted that the rear end that above-mentioned rear end is stored as providing data for business under production website (data center) is deposited
Storage.Based on above-mentioned, produce and mutually separate between website, therefore have different website attributes, such as set in the first production website site1
Put in first position, the second production website site2 is arranged on the second place, then the website category of the main frame under the first production website
Property be site1, similarly, the website attribute of main frame under the second production website is site2.
In the embodiment of the present application, main frame under respective site attribute when needing to read corresponding data, can only by with this
Host site attribute identical rear end is stored in the reading of row data, that is, the read operation under the embodiment of the present application is this
Ground is read, and avoids cross-site data access.
Step S13：The main frame of any production website sends write request to any SVC nodes, is returned receiving the SVC nodes
Writing of returning will write data after response and send to the SVC nodes；Write data are mirrored in another production website by the VDM
Corresponding SVC nodes, the rear end that write data are respectively written into corresponding production website store, and realize locally-written function.
It is understood that data center's fissure can simply be interpreted as network and storage chains between Liang Ge data centers
Road is interrupted simultaneously, is caused the application in Liang Ge data centers, database or operating system while is seized and using shared
Resource, cause the data of resource inconsistent, produce significant impact.And this problem be storage span centre heart dual-active conceptual design,
The problem of implementation phase will unavoidably run into, therefore the storage dual-active method of the embodiment of the present application can also specifically include：
The storage arbitrated on website assigns activity arbitration function to the mdisk arbitrated in website storage；Wherein, it is described
There is heartbeat between arbitration website and each production website, to prevent fissure phenomenon from occurring.
The embodiment of the present application is disclosed to store dual-active method, and two nodes are deployed in phase respectively in each I O access group
Answer the different production websites of website perceptional function, two production equal on-line operations of website, this is done to by each I O access
Two nodes carry out cross-site stretching in group, and the website perceptional function of above-mentioned production website ensure that the read-write operation of main frame is equal
For local operation, the problem of IO readwrite performances for avoiding cross-site data access and bringing decline.As can be seen here, it is of the invention
Disclosed storage dual-active method can effectively reduce the loss for seeing storage performance on the premise of storage dual-active is realized.
The embodiment of the invention discloses a kind of specific storage dual-active method, relative to a upper embodiment, the present embodiment pair
Technical scheme has made further instruction and optimization.Shown in reference picture 2, this method specifically includes following steps：
Step S21：Two nodes in each I O access group are deployed in the production with respective site perceptional function respectively
Website, obtains corresponding SVC nodes, and production website perceives all SVC nodes of the website according to corresponding website perceptional function
Situation.
Step S22：Judge that current SVC nodes whether there is failure；If it is, it is any production website Selection of chiller from
Data are read in the website attribute identical rear end storage of corresponding normal node, and function is locally read to realize.
Step S23：Judge whether two SVC nodes in current I O access group have failure；If it is, any life
The main frame for producing website sends write request to any normal SVC nodes of other any I O access groups, is returned receiving the SVC nodes
Write and will write data after response and send to the SVC nodes；Write data are mirrored to phase in another production website by the VDM
The SVC nodes answered, the rear end that write data are respectively written into corresponding production website store, and realize locally-written function.
It should be noted that shown in reference picture 3, step S23 idiographic flow can specifically include：
Step 1：Main frame sends write request to the first SVC nodes.
Step 2：The first SVC nodes return to the main frame and write ready message.
Step 3：The main frame sends to the first SVC nodes and writes data.
Step 4：Write buffer data image is produced by corresponding 2nd SVC nodes in website to another by the VDM；
Step 5：The 2nd SVC nodes return to the first SVC nodes and write complete mark；
Step 6：The first SVC nodes return to the main frame and write complete mark；
Step 7：The rear end storage transmission of the first SVC nodes and the 2nd SVC nodes to corresponding production website is write
Request.
Step 8：Corresponding rear end storage returns to the first SVC nodes and the 2nd SVC nodes respectively writes thread
Message.
Step 9：The first SVC nodes and the 2nd SVC nodes write data to the storage transmission of corresponding rear end respectively.
Step 10：Rear end storage returns to the first SVC nodes and the 2nd SVC nodes write complete mark respectively,
Complete whole write operation.
Wherein, step 1 using delay to step 6 on having certain influence, and step 7 to step 10 is asynchronous operation, to application
Delay is without influence.
It should be noted that the website perceptional function described in all embodiments of the application, which includes the local I/O that reads, optimizes work(
Energy, locally-written I/O optimize function and ensure I/O localization functions.
The present embodiment is also achieved and laterally drawn in multiple I O access groups in addition to the beneficial effect for possessing above-described embodiment
In the aggregated structure stretched, all nodes of each website can be perceived, to ensure that business is not only only capable of in an I O access group
Node between switch, can also switch between multiple I O access groups, i.e., after current I O access group is broken down, business can be horizontal
To other I O access groups are switched to, reach full redundancy.
Accordingly, the embodiment of the present application discloses a kind of storage dual-active device, and shown in Figure 4, the device includes：
Node deployment module 41, perceived for two nodes in each I O access group to be deployed in respectively with respective site
The production website of function, corresponding SVC nodes are obtained, to ensure the I/O read-writes of each production site hosts and local node
Interact；
Local to read functional module 42, the Selection of chiller for any production website is from identical with the website attribute of respective nodes
Rear end storage read data, local read function to realize；
Locally-written functional module 43, the main frame for any production website send write request to any SVC nodes, received
Data will be write to writing of returning of the SVC nodes after response to send to the SVC nodes；Write data are mirrored to by the VDM
Corresponding SVC nodes in another production website, the rear end that write data are respectively written into corresponding production website store, realized
Locally-written function.
Introduction based on above-described embodiment, the device can also specifically include：Arbitration modules, for arbitrating depositing on website
Storage assigns activity arbitration function the mdisk in the arbitration website storage；Wherein, the arbitration website and each production website
Between have heartbeat, with prevent fissure phenomenon occur.
On the specific work process between modules in the present embodiment refer to moving target disclosed by the invention with
Track method, will not be repeated here.
Accordingly, the embodiment of the present application also discloses a kind of storage dual-active system, including stores dual-active method institute as described above
Production website, SVC nodes and the arbitration website stated, it is shown in Figure 5.It should be noted that the present embodiment technology segment
Particular content can be found in hereinbefore embodiment, will not be repeated here.
Accordingly, the embodiment of the present application also discloses a kind of computer-readable recording medium, the computer-readable storage
Computer program is stored with medium, the step for storing dual-active method as described above is realized when the computer program is executed by processor
Suddenly.Particular content can be found in hereinbefore embodiment, will not be repeated here.
Finally, it is to be noted that, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also the other element including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except other identical element in the process including the key element, method, article or equipment being also present.
A kind of storage dual-active method, apparatus, system and computer-readable recording medium provided by the present invention are entered above
Go and be discussed in detail, specific case used herein is set forth to the principle and embodiment of the present invention, and the above is implemented
The explanation of example is only intended to help the method and its core concept for understanding the present invention；Meanwhile for the general technology people of this area
Member, according to the thought of the present invention, there will be changes in specific embodiments and applications, in summary, this explanation
Book content should not be construed as limiting the invention.
Claims (11)
1. one kind storage dual-active method, it is characterised in that including：
Two nodes in each I O access group are deployed in the production website with respective site perceptional function respectively, obtained corresponding
SVC nodes, with ensure it is each production site hosts I/O read-write only interacted with local node；
The Selection of chiller of any production website reads data from the storage of the website attribute identical rear end of respective nodes, to realize
It is local to read function；
It is any production website main frame to any SVC nodes send write request, receive the SVC nodes return write response after
Data will be write to send to the SVC nodes；Write data are mirrored to corresponding SVC sections in another production website by the VDM
Point, the rear end that write data are respectively written into corresponding production website store, and realize locally-written function.
2. storage dual-active method according to claim 1, it is characterised in that this method also includes：
The storage arbitrated on website assigns activity arbitration function to the mdisk arbitrated in website storage；Wherein, the arbitration
There is heartbeat between website and each production website, to prevent fissure phenomenon from occurring.
3. storage dual-active method according to claim 1, it is characterised in that the website perceptional function includes local reading I/
O optimizations function, locally-written I/O optimize function and ensure I/O localization functions.
4. storage dual-active method according to claim 1, it is characterised in that the main frame of any production website is to any
SVC nodes send write request, will write data receiving writing for SVC nodes return after response and send to the SVC nodes；It is described
Write data and corresponding SVC nodes in another production website are mirrored to by the VDM, write data are respectively written into accordingly
Produce the rear end storage of website, the step of realizing locally-written function, including：
Step 1：Main frame sends write request to the first SVC nodes；
Step 2：The first SVC nodes return to the main frame and write ready message；
Step 3：The main frame sends to the first SVC nodes and writes data；
Step 4：Write buffer data image is produced by corresponding 2nd SVC nodes in website to another by the VDM；
Step 5：The 2nd SVC nodes return to the first SVC nodes and write complete mark；
Step 6：The first SVC nodes return to the main frame and write complete mark；
Step 7：The rear end storage of the first SVC nodes and the 2nd SVC nodes to corresponding production website sends write request；
Step 8：Corresponding rear end storage returns to the first SVC nodes and the 2nd SVC nodes respectively writes ready message；
Step 9：The first SVC nodes and the 2nd SVC nodes write data to the storage transmission of corresponding rear end respectively；
Step 10：Rear end storage returns to the first SVC nodes and the 2nd SVC nodes write complete mark respectively, completes
Whole write operation.
5. the storage dual-active method according to Claims 1-4 any one, it is characterised in that described by each I O access
Two nodes are deployed in the production website with respective site perceptional function respectively in group, the step of obtaining corresponding SVC nodes,
Also include：
Production website perceives the situation of all SVC nodes of the website according to corresponding website perceptional function.
6. it is according to claim 5 storage dual-active method, it is characterised in that it is described it is any production website Selection of chiller from
The step of data are read in website attribute identical rear end storage with respective nodes, including：
Judge that current SVC nodes whether there is failure；If it is, it is switched to other SVC nodes for being in normal condition.
7. storage dual-active method according to claim 5, it is characterised in that the main frame of any production website is to any
The step of corresponding node of I O access group sends write request, in addition to：
Judge whether two SVC nodes in current I O access group have failure；Visited if it is, being switched to other any IO
Ask group.
8. one kind storage dual-active device, it is characterised in that including：
Node deployment module, for two nodes in each I O access group to be deployed in respective site perceptional function respectively
Website is produced, obtains corresponding SVC nodes, to ensure that the I/O read-writes of each production site hosts are only handed over local node
Mutually；
Local to read functional module, the Selection of chiller for any production website is from the website attribute identical rear end with respective nodes
Data are read in storage, to realize local reading function；
Locally-written functional module, the main frame for any production website send write request to any SVC nodes, are receiving this
What SVC nodes returned, which write, will write data after response and send to the SVC nodes；Write data are mirrored to another by the VDM
Corresponding SVC nodes in website are produced, the rear end that write data are respectively written into corresponding production website stores, and realizes local
Write function.
9. storage dual-active device according to claim 8, it is characterised in that the device also includes：
Arbitration modules, activity arbitration function is assigned to the mdisk arbitrated in website storage for arbitrating the storage on website；
Wherein, there is heartbeat between the arbitration website and each production website, to prevent fissure phenomenon from occurring.
10. one kind storage dual-active system, it is characterised in that including the production website as described in claim 1 to 7, SVC nodes with
And the arbitration website described in claim 2.
11. a kind of computer-readable recording medium, it is characterised in that be stored with computer on the computer-readable recording medium
Program, the step that dual-active method is stored as described in any one of claim 1 to 7 is realized when the computer program is executed by processor
Suddenly.
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| CN201711049643.5A CN107766003A (en) | 2017-10-31 | 2017-10-31 | One kind storage dual-active method, apparatus, system and computer-readable recording medium |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109150986A (en) * | 2018-07-27 | 2019-01-04 | 郑州云海信息技术有限公司 | Store access method, device and the storage medium of data under dual-active mode |
| CN109445992A (en) * | 2018-11-01 | 2019-03-08 | 郑州云海信息技术有限公司 | A kind of dual-active System data management method and relevant apparatus |
| CN110297609A (en) * | 2019-06-14 | 2019-10-01 | 天津科技大学 | A kind of date storage method of precise information system |
| CN117453146A (en) * | 2023-12-22 | 2024-01-26 | 芯能量集成电路(上海)有限公司 | Data reading method, system, eFlash controller and storage medium |
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