CN102843435A - Access and response method and access and response system of storing medium in cluster system - Google Patents
Access and response method and access and response system of storing medium in cluster system Download PDFInfo
- Publication number
- CN102843435A CN102843435A CN201210333560XA CN201210333560A CN102843435A CN 102843435 A CN102843435 A CN 102843435A CN 201210333560X A CN201210333560X A CN 201210333560XA CN 201210333560 A CN201210333560 A CN 201210333560A CN 102843435 A CN102843435 A CN 102843435A
- Authority
- CN
- China
- Prior art keywords
- client
- packet
- storage system
- read
- memory space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention provides an access and response method and an access and response system of a storing medium in a cluster system. The access system comprises a cluster system, wherein the cluster system comprises a plurality of clients, wherein each client accesses a storing system in the cluster system through an InfiniBand network; and the client comprises a packaging device, a sending device, an un-packaging device and an output device, wherein the packaging device is used for packaging a reading/writing command into a first data packet for directly storing an access protocol SRP (signal recognition particle) after receiving the reading/writing command of a small computer system interface SCSI of some directory on some storing space on a storing system from the client; the sending device is used for sending the first data packet to the storing system; the un-packaging device is used for un-packaging the information in a second data packet packaged via the SRP protocol and fed back to the first data packet from the storing system; and the output device is used for outputting the information of the SCSI protocol.
Description
Technical field
The present invention relates to network communication field, relate in particular to a kind of in group system visit, response method and the system of storage medium.
Background technology
BTA is found in 1999, is taken the lead the advanced I/O standard of high speed of joint research development by Compaq, Hewlett-Packard, IBM, Dell, Intel, Microsoft and Sun seven companies.Initial called after System I/O, formally is renamed as InfiniBand (being called for short IB) in October, 1999.InfiniBand is a kind of connected mode of long cable, has at a high speed, hangs down the transmission characteristic that postpones, and (like TCP/IP) compares with other procotols, and InfiniBand has higher efficiency of transmission.Reason is that many procotols have the ability of the packet of forwarding loss, but owing to will constantly confirm and repeating transmission, also can be therefore slack-off based on the communication of these agreements, greatly influenced performance.Transmission Control Protocol is a large amount of host-host protocols that use of a kind of quilt; Can see its figure from the refrigerator to the supercomputer etc. on the various device; But be to use it to pay through the nose: Transmission Control Protocol is extremely complicated, size of code is huge and be full of various special cases, and it is difficult to unloading (so-called unloading is exactly the running time that does not take CPU).By comparison, InfiniBand uses based on mechanism that trust, current control and guarantees the integrality that connects, and packet is seldom lost.Use InfiniBand, possess enough spaces only if confirm to receive buffer memory, otherwise can not transmit data.The recipient returns the availability that credit indicates spatial cache after transfer of data finishes.Through this way, InfiniBand has eliminated the retransmission delay of bringing owing to former data-bag lost, thereby has promoted efficient and overall performance.
Aspect bandwidth, InfiniBand also has advantage than FC scheme, and wherein the InfiniBand bandwidth is 40Gbps, and FC has only 16Gbps.The IB network is a kind of brand-new open interconnection structure standard based on passage and exchange, and it has high bandwidth, the low characteristics that postpone, and the highest theoretical bandwidth of IB network can reach 120Gb/s.Current IB product commonly used is a QDR equipment; The unidirectional bandwidth of its single port is 40Gb/s, and the minimum delay is directly visited (RDMA comprises that RDMA reads to write with RDMA) less than 1 μ s, the multiple transmission service of support, support remote storage device; Make the data can the bypass core, realize " zero-copy " transmission.
In high-performance computing sector; Along with the increasing employing of each node of high-performance computer infiniband connects; Whether SAN (Storage Area Network, storage area network) memory device supports seamless link infiniband network to seem more important.
Summary of the invention
The present invention provide a kind of in group system visit, response method and the system of storage medium, the technology that solve
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of in group system the access system of storage medium, group system comprises a plurality of clients, wherein all through the storage system in the said group system of InfiniBand access to netwoks, wherein said client comprises each client:
Packaging system; Be used for when receiving client on storage system on a certain memory space during read/write command of the small computer system interface SCSI agreement of a certain catalogue; Said read/write command is packaged into first packet of long-range direct memory access protocols SRP, and identification information and this read/write command that wherein said first packet carries said client wanted read/write catalogue corresponding stored position information on storage system;
Dispensing device links to each other with said packaging system, is used for sending said first packet to said storage system;
De-encapsulating devices is used for after receiving second packet of storage system to the employing SRP protocol encapsulation of said first packet feedback, the information deblocking in said second packet being dressed up the information of SCSI agreement;
Output device links to each other with said de-encapsulating devices, is used to export the information of said SCSI agreement.
Preferably, said system also has following characteristics: said system also comprises:
The application device is used for when system initialization, to the memory space of this client of storage system application;
Deriving means links to each other with said application device, is used to obtain the memory space that storage system is distributed for this client;
Inking device links to each other with said packaging system with said deriving means, is used for according to the memory space that distributes, and disposes the catalogue of this client and the mapping relations of assigned memory space.
Preferably, said system also has following characteristics: the identification information of said client is the identification information of InfiniBand communication network interface card on this client.
A kind of in group system the responding system of storage medium, group system comprises a plurality of clients, wherein all through the storage system in the said group system of InfiniBand access to netwoks, wherein said storage system comprises each client:
De-encapsulating devices; Be used for when receiving first packet of SRP agreement through the InfiniBand network; With the information decapsulation in said first packet, obtain the read/write command of SCSI agreement, wherein said read/write life comprises the read/write command of user's a certain catalogue on a certain memory space;
Output device links to each other with said decapsulation, is used to notify storage system to handle said read/write command;
Packaging system is used for after receiving the SCSI information of storage system to said first packet feedback, said SCSI information being packaged into second packet of SRP agreement;
Dispensing device links to each other with said packaging system, is used to send said second packet.
Preferably, said system also has following characteristics: said system also comprises:
Distributor is used for after the request that receives client application memory space, the memory space that distributes this client to use for this client;
Notifying device links to each other with said distributor, is used to notify the said client memory space that this client can be used.
A kind of in group system the access method of storage medium, group system comprises a plurality of clients, wherein each client is all through the storage system in the said group system of InfiniBand access to netwoks, wherein said client executing following steps:
When receiving client on storage system on a certain memory space during read/write command of the small computer system interface SCSI agreement of a certain catalogue; Said read/write command is packaged into first packet of long-range direct memory access protocols SRP, and identification information and this read/write command that wherein said first packet carries said client wanted read/write catalogue corresponding stored position information on storage system;
Send said first packet to said storage system;
After receiving second packet of storage system, the information deblocking in said second packet is dressed up the information of SCSI agreement to the employing SRP protocol encapsulation of said first packet feedback;
Export the information of said SCSI agreement.
Preferably, said method also has following characteristics: said method also comprises:
When system initialization, to the memory space of this client of storage system application;
Obtain the memory space that storage system is distributed for this client;
According to the memory space that distributes, dispose the catalogue of this client and the mapping relations of assigned memory space.
Preferably, said method also has following characteristics: the identification information of said client is the identification information of InfiniBand communication network interface card on this client.
A kind of in group system the response method of storage medium, group system comprises a plurality of clients, wherein each client is all through the storage system in the said group system of InfiniBand access to netwoks, wherein said storage system is carried out following steps:
When receiving first packet of SRP agreement through the InfiniBand network; With the information decapsulation in said first packet; Obtain the read/write command of SCSI agreement, wherein said read/write life comprises the read/write command of user's a certain catalogue on a certain memory space;
The notice storage system is handled said read/write command;
After receiving the SCSI information of storage system, said SCSI information is packaged into second packet of SRP agreement to said first packet feedback;
Send said second packet.
Preferably, said method also has following characteristics: said method also comprises:
After the request that receives client application memory space, the memory space that distributes this client to use for this client;
Notify the said client memory space that this client can be used.
Technical scheme provided by the invention, the transmission through InfiniBand realizes data realizes " zero-copy " transmission.
Description of drawings
Fig. 1 be provided by the invention in group system the schematic flow sheet of the access system embodiment of storage medium;
Fig. 2 be provided by the invention in group system the structural representation of the responding system embodiment of storage medium;
Fig. 3 be provided by the invention in group system the schematic flow sheet of the access method embodiment of storage medium;
Fig. 4 be provided by the invention in group system the schematic flow sheet of the response method embodiment of storage medium.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing and specific embodiment that the present invention is made further detailed description below.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
Fig. 1 be provided by the invention in group system the schematic flow sheet of the access system embodiment of storage medium.Said group system comprises a plurality of clients, and wherein all through the storage system in the said group system of InfiniBand access to netwoks, wherein said client comprises each client:
Packaging system 101; Be used for when receiving client on storage system on a certain memory space during read/write command of the small computer system interface SCSI agreement of a certain catalogue; Said read/write command is packaged into first packet of long-range direct memory access protocols SRP, and identification information and this read/write command that wherein said first packet carries said client wanted read/write catalogue corresponding stored position information on storage system;
Dispensing device 102 links to each other with said packaging system 101, is used for sending said first packet to said storage system;
De-encapsulating devices 103 is used for after receiving second packet of storage system to the employing SRP protocol encapsulation of said first packet feedback, the information deblocking in said second packet being dressed up the information of SCSI agreement;
Certainly, each client device on storage system employable memory space can be pre-configured, also can obtain by the client application, for example, said system also comprises:
The application device is used for when system initialization, to the memory space of this client of storage system application;
Deriving means links to each other with said application device, is used to obtain the memory space that storage system is distributed for this client;
Inking device links to each other with said packaging system with said deriving means, is used for according to the memory space that distributes, and disposes the catalogue of this client and the mapping relations of assigned memory space.
Wherein, the identification information of said client is the identification information of InfiniBand communication network interface card on this client.
By on can find out; Because the client memory space of visiting is in this locality, but link to each other, when the client initialization by the IB network; Initiate application through client to storage system, this client application to this client the memory space that can use; When the user when client is initiated read/write command; Being packaged into through the read/write command that client is inner can be at first packet of IB transmission over networks; Make this read/write command can pass through the IB Network Transmission to storage system, and after receiving second packet of storage system to this packet feedback, through this second packet is encapsulated; Obtain the data that client can be resolved, thereby accomplish accessing operation storage system.
Fig. 2 be provided by the invention in group system the structural representation of the responding system embodiment of storage medium.Among the method embodiment shown in Figure 2, group system comprises a plurality of clients, and wherein all through the storage system in the said group system of InfiniBand access to netwoks, wherein said storage system comprises each client:
Optional, said system also comprises:
Distributor is used for after the request that receives client application memory space, the memory space that distributes this client to use for this client;
Notifying device links to each other with said distributor, is used to notify the said client memory space that this client can be used.
In like manner; Since the client memory space of visiting not with the employed client of user together, but link to each other, when the client initialization by the IB network; The application of initiating according to client, for this client distributed this client the memory space that can use; When the IB network receives first packet; Wherein this first packet carries read/write command, through the first packet deblocking is dressed up the information that storage system can be resolved, so that storage system can be handled this read/write command; After finishing dealing with; Result is packaged into and can makes this Processing Structure can pass through the IB Network Transmission to client, thereby accomplish the response to the visit of client at second packet of IB transmission over networks.
Be described further in the face of the responding system that provides provided by the invention down:
Disk array is to the storage and the processing of magnanimity information, and the availability and the performance of data have great importance, and object machine is that main frame provides device map and equipment access interface.This paper designs and has realized the object machine of SRP agreement; SRP (SCSI RDMA protocol wherein; Long-range direct memory access protocols) also is called as SCSI Remote Protocol; It mainly acts on is to operate in the order of SCSI agreement and the data mode through RDMA on the infiniband network, and its uses RDMA communication service to operate.The RDMA communication service for consumption to communication is provided, use the message transmitting control information and use RDMA read/write operation transmission data.
Through main frame HCA card GUID (Globally Unique Identifier; Global unique identification symbol) realizes the granted access of storage system logic resource; Wherein the HCA card is Mellanox ConnectX IB InfiniBand host channel adapter (HCA) card that Mellanox company releases, and in the face of object machine the handling process of read is introduced down:
Responding system in the preceding text can be realized through srp target; This system organically combines infiniband protocol stack and srp agreement; Adopt srp storage protocol technology can utilize lag characteristic at the bottom of the high bandwidth of infiniband network; Thereby realize the function of io flow from the client transmissions to the disk array, make the compatible infiniband network of SAN memory device.
The angle that realizes from software below describes:
This system architecture comprises: infiniband protocol stack, srp protocol module and scsi command analysis module, wherein:
The infiniband protocol stack provides the hardware driving and the service of infiniband HBA card, sets up Infiniband connection and read/write data so that the Srp agreement relies on it;
The srp protocol module provides the connection management to client infiniband, functions such as srp read/write function realization;
Scsi command analysis module provides the parsing to the scsi order.
In architecture; The Srp object machine has three interfaces, and an interface is and the LVM of rear end to read or write the IO data from rear end equipment; One is to communicate by letter with plug and play manager, and another is used for the transfer of data with the Initiator end.Linking to each other with the LVM of rear end is that the data that receive are write the rear end disk, perhaps with the data of needs from the rear end disk read, transferring to the initiator end through the RDMA operation.
Srp target depends on infiniband access Layer and sets up the Infiniband connection; At first it is set up the interface of monitoring and receives the connection request from Initiator; Reception is from the information unit (IU) of Initiator; Information unit is made an explanation and processes, and send corresponding response and hold to Initiator.Its main effect is that the IU cell translation that receives is become SCSI request, and process result is packaged into the SRP information unit sends to client.It can provide service for several initiator simultaneously simultaneously, can handle for each Initiator provides I/O simultaneously.
The 3rd interface is plug and paly manager, when srpt starts, he can be immediately to the registration of plug andplay manager, be the notice readjustment function that provides access, so when new IB incident, just can be informed to.
In the face of content of the present invention the process that realizes this architecture is described with an instantiation down.
As described in the summary of the invention, architecture of the present invention mainly comprises: infiniband protocol stack (1), srp protocol module (2), scsi command analysis module (3)
The Srpt object machine has three interfaces, and an interface is and the LVM of rear end, comes to read or write the IO data from rear end equipment, and one is to communicate by letter with plug and play manager, and another is used for the transfer of data with the Initiator end.Linking to each other with the LVM of rear end is that the data that receive are write the rear end disk, perhaps with the data of needs from the rear end disk read, transferring to the initiator end through the RDMA operation.
Srp target depends on infiniband access Layer and sets up the Infiniband connection; At first it is set up the interface of monitoring and receives the connection request from Initiator; Reception is from the information unit (IU) of Initiator; Information unit is made an explanation and processes, and send corresponding response and hold to Initiator.Its main effect is that the IU cell translation that receives is become SCSI request, and process result is packaged into the SRP information unit sends to client.It can provide service for several initiator simultaneously simultaneously, can handle for each Initiator provides I/O simultaneously.
The 3rd interface is plug and paly manager, when srpt starts, he can be immediately to the registration of plug andplay manager, be the notice readjustment function that provides access, so when new IB incident, just can be informed to.
It is event driven that Srp target drives, and all its behaviors all are the responses that certain incident is done.Common occurrence spare has RDMA to send message, and RDMA receives message, RDMA read operation, RDMAwrite operation.
At first the realization to read operation describes:
Read operation is meant that SRP initiator server reads the process of information from SRP Target server.Read operation has comprised that SRP initiator obtains the SCSI storing device information, checks the capacity of memory device size and reads storage device data etc. from SRP Target server.The client reading data course is following:
1) infiniband accomplishes the formation call back function and calls, and from system queue, takes out the work request of accomplishing, if the state of work request is made mistakes, then the abort scsi command of this time makeing mistakes carries out fault processing, otherwise changes 2
2) if action type is to receive message, judge the command type of the SRP that receives, the RDMA triplet information is set, obtain the scsi command attribute, explain scsi command, allocation process scsi command structure is provided with the tag of order,
3) for scsi command distributes corresponding resource, judge the scsi command operation, the distribute data buffer area is carried out the SCSI read operation, sense data in the slave unit
4) obtain RDMA channel, be provided with and distribute the RDMA buffer area, carry out the RDMA write operation
5) set up the RSP respond packet, use RDMA SEND operate transmit messages
6) RDMA SEND message is accomplished, and discharges the RDMA buffer area, delivers new work request.
Realization in the face of write operation describes down:
Write operation is meant that SRP initiator writes data the process of SRP Target.Client write data process is following:
1) infiniband accomplishes the formation call back function and calls, and from system queue, takes out the work request of accomplishing, if the state of work request is made mistakes, then the abort scsi command of this time makeing mistakes carries out fault processing, otherwise changes 2
2) if action type is to receive message, judge the command type of the SRP that receives, the RDMA triplet information is set, obtain the scsi command attribute, explain scsi command, allocation process scsi command structure is provided with the tag of order,
3) for scsi command distributes corresponding resource, judge the scsi command operation, the distribute data buffer area is provided with the RDMA passage and reads mode, starts the RDMA read operation
4) the RDMA letter of transfer that reads back counts up to, and it is the data armed state that the scsi command state is set, and the data of reading in are write the rear end disk
5) set up the RSP respond packet, use RDMA SEND operate transmit messages
6) RDMA SEND message is accomplished, and discharges the RDMA buffer area, delivers new work request.
So far, the complete process that has realized the read/write of srp target, this technology can make disk array use the infiniband transmitted data on network.
Therefore adopt this technology, target object machine to make the infiniband network performance be not fully exerted, the overall performance bandwidth of system is near the theoretical limit of infiniband.
Fig. 3 be provided by the invention in group system the schematic flow sheet of the access method embodiment of storage medium.Among the method embodiment shown in Figure 3, group system comprises a plurality of clients, and wherein each client is all through the storage system in the said group system of InfiniBand access to netwoks, wherein said client executing following steps:
Step 301, when receiving client on storage system on a certain memory space during read/write command of the small computer system interface SCSI agreement of a certain catalogue; Said read/write command is packaged into first packet of long-range direct memory access protocols SRP, and identification information and this read/write command that wherein said first packet carries said client wanted read/write catalogue corresponding stored position information on storage system;
Step 302, send said first packet to said storage system;
Step 303, after receiving second packet of storage system to the employing SRP protocol encapsulation of said first packet feedback, the information deblocking in said second packet is dressed up the information of SCSI agreement;
The information of step 304, the said SCSI agreement of output.
Optional, said method also comprises:
When system initialization, to the memory space of this client of storage system application;
Obtain the memory space that storage system is distributed for this client;
According to the memory space that distributes, dispose the catalogue of this client and the mapping relations of assigned memory space.
Optional, the identification information of said client is the identification information of InfiniBand communication network interface card on this client.
By on can find out; Because the client memory space of visiting is in this locality, but link to each other, when the client initialization by the IB network; Initiate application through client to storage system, this client application to this client the memory space that can use; When the user when client is initiated read/write command; Being packaged into through the read/write command that client is inner can be at first packet of IB transmission over networks; Make this read/write command can pass through the IB Network Transmission to storage system, and after receiving second packet of storage system to this packet feedback, through this second packet is encapsulated; Obtain the data that client can be resolved, thereby accomplish accessing operation storage system.
Fig. 4 be provided by the invention in group system the schematic flow sheet of the response method embodiment of storage medium.Method embodiment shown in Figure 4 comprises that group system comprises a plurality of clients, and wherein each client is all through the storage system in the said group system of InfiniBand access to netwoks, and wherein said storage system is carried out following steps:
Step 401, when receiving first packet of SRP agreement through the InfiniBand network; With the information decapsulation in said first packet; Obtain the read/write command of SCSI agreement, wherein said read/write life comprises the read/write command of user's a certain catalogue on a certain memory space;
Optional, said method also comprises:
After the request that receives client application memory space, distributing this client for this client can
Since the client memory space of visiting not with the employed client of user together; But link to each other by the IB network; When the client initialization, the application of initiating according to client, for this client distributed this client the memory space that can use; When the IB network receives first packet; Wherein this first packet carries read/write command, through the first packet deblocking is dressed up the information that storage system can be resolved, so that storage system can be handled this read/write command; After finishing dealing with; Result is packaged into and can makes this Processing Structure can pass through the IB Network Transmission to client, thereby accomplish the response to the visit of client at second packet of IB transmission over networks.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the described protection range of claim.
Claims (10)
1. the access system of a storage medium in group system is characterized in that, group system comprises a plurality of clients, and wherein all through the storage system in the said group system of InfiniBand access to netwoks, wherein said client comprises each client:
Packaging system; Be used for when receiving client on storage system on a certain memory space during read/write command of the small computer system interface SCSI agreement of a certain catalogue; Said read/write command is packaged into first packet of long-range direct memory access protocols SRP, and identification information and this read/write command that wherein said first packet carries said client wanted read/write catalogue corresponding stored position information on storage system;
Dispensing device links to each other with said packaging system, is used for sending said first packet to said storage system;
De-encapsulating devices is used for after receiving second packet of storage system to the employing SRP protocol encapsulation of said first packet feedback, the information deblocking in said second packet being dressed up the information of SCSI agreement;
Output device links to each other with said de-encapsulating devices, is used to export the information of said SCSI agreement.
2. system according to claim 1 is characterized in that, said system also comprises:
The application device is used for when system initialization, to the memory space of this client of storage system application;
Deriving means links to each other with said application device, is used to obtain the memory space that storage system is distributed for this client;
Inking device links to each other with said packaging system with said deriving means, is used for according to the memory space that distributes, and disposes the catalogue of this client and the mapping relations of assigned memory space.
3. system according to claim 1 is characterized in that, the identification information of said client is the identification information of InfiniBand communication network interface card on this client.
4. the responding system of a storage medium in group system is characterized in that, group system comprises a plurality of clients, and wherein all through the storage system in the said group system of InfiniBand access to netwoks, wherein said storage system comprises each client:
De-encapsulating devices; Be used for when receiving first packet of SRP agreement through the InfiniBand network; With the information decapsulation in said first packet, obtain the read/write command of SCSI agreement, wherein said read/write life comprises the read/write command of user's a certain catalogue on a certain memory space;
Output device links to each other with said decapsulation, is used to notify storage system to handle said read/write command;
Packaging system is used for after receiving the SCSI information of storage system to said first packet feedback, said SCSI information being packaged into second packet of SRP agreement;
Dispensing device links to each other with said packaging system, is used to send said second packet.
5. system according to claim 4 is characterized in that, said system also comprises:
Distributor is used for after the request that receives client application memory space, the memory space that distributes this client to use for this client;
Notifying device links to each other with said distributor, is used to notify the said client memory space that this client can be used.
6. the access method of a storage medium in group system; It is characterized in that; Group system comprises a plurality of clients, and wherein each client is all through the storage system in the said group system of InfiniBand access to netwoks, wherein said client executing following steps:
When receiving client on storage system on a certain memory space during read/write command of the small computer system interface SCSI agreement of a certain catalogue; Said read/write command is packaged into first packet of long-range direct memory access protocols SRP, and identification information and this read/write command that wherein said first packet carries said client wanted read/write catalogue corresponding stored position information on storage system;
Send said first packet to said storage system;
After receiving second packet of storage system, the information deblocking in said second packet is dressed up the information of SCSI agreement to the employing SRP protocol encapsulation of said first packet feedback;
Export the information of said SCSI agreement.
7. method according to claim 6 is characterized in that, said method also comprises:
When system initialization, to the memory space of this client of storage system application;
Obtain the memory space that storage system is distributed for this client;
According to the memory space that distributes, dispose the catalogue of this client and the mapping relations of assigned memory space.
8. method according to claim 6 is characterized in that, the identification information of said client is the identification information of InfiniBand communication network interface card on this client.
9. the response method of a storage medium in group system; It is characterized in that; Group system comprises a plurality of clients, and wherein each client is all through the storage system in the said group system of InfiniBand access to netwoks, and wherein said storage system is carried out following steps:
When receiving first packet of SRP agreement through the InfiniBand network; With the information decapsulation in said first packet; Obtain the read/write command of SCSI agreement, wherein said read/write life comprises the read/write command of user's a certain catalogue on a certain memory space;
The notice storage system is handled said read/write command;
After receiving the SCSI information of storage system, said SCSI information is packaged into second packet of SRP agreement to said first packet feedback;
Send said second packet.
10. method according to claim 9 is characterized in that, said method also comprises:
After the request that receives client application memory space, the memory space that distributes this client to use for this client;
Notify the said client memory space that this client can be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210333560XA CN102843435A (en) | 2012-09-10 | 2012-09-10 | Access and response method and access and response system of storing medium in cluster system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210333560XA CN102843435A (en) | 2012-09-10 | 2012-09-10 | Access and response method and access and response system of storing medium in cluster system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102843435A true CN102843435A (en) | 2012-12-26 |
Family
ID=47370488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210333560XA Pending CN102843435A (en) | 2012-09-10 | 2012-09-10 | Access and response method and access and response system of storing medium in cluster system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102843435A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257941A (en) * | 2013-04-17 | 2013-08-21 | 浪潮(北京)电子信息产业有限公司 | Multi-protocol storage controller and system |
| CN105243166A (en) * | 2015-11-10 | 2016-01-13 | 浪潮(北京)电子信息产业有限公司 | Data management device and system, and data writing and reading methods |
| CN106776430A (en) * | 2016-12-12 | 2017-05-31 | 英业达科技有限公司 | Server system |
| CN107391049A (en) * | 2017-09-08 | 2017-11-24 | 南宁磁动电子科技有限公司 | Storage connection equipment and storage system |
| CN107479833A (en) * | 2017-08-21 | 2017-12-15 | 中国人民解放军国防科技大学 | Key value storage-oriented remote nonvolatile memory access and management method |
| CN111857580A (en) * | 2020-07-06 | 2020-10-30 | 苏州浪潮智能科技有限公司 | Same writing method and device of distributed storage system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1691669A (en) * | 2004-04-21 | 2005-11-02 | 国际商业机器公司 | Method, system, and program for executing data transfer requests |
| CN1997033A (en) * | 2006-12-28 | 2007-07-11 | 华中科技大学 | A protocol for network storage and its system |
| CN101119374A (en) * | 2007-09-10 | 2008-02-06 | 杭州华三通信技术有限公司 | iSCSI communication method and corresponding initiation equipment and objective equipment |
| CN202406147U (en) * | 2011-12-31 | 2012-08-29 | 曙光信息产业股份有限公司 | Computer trunking system |
-
2012
- 2012-09-10 CN CN201210333560XA patent/CN102843435A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1691669A (en) * | 2004-04-21 | 2005-11-02 | 国际商业机器公司 | Method, system, and program for executing data transfer requests |
| CN1997033A (en) * | 2006-12-28 | 2007-07-11 | 华中科技大学 | A protocol for network storage and its system |
| CN101119374A (en) * | 2007-09-10 | 2008-02-06 | 杭州华三通信技术有限公司 | iSCSI communication method and corresponding initiation equipment and objective equipment |
| CN202406147U (en) * | 2011-12-31 | 2012-08-29 | 曙光信息产业股份有限公司 | Computer trunking system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257941A (en) * | 2013-04-17 | 2013-08-21 | 浪潮(北京)电子信息产业有限公司 | Multi-protocol storage controller and system |
| CN103257941B (en) * | 2013-04-17 | 2015-09-23 | 浪潮(北京)电子信息产业有限公司 | Multi-protocol storage controller and system |
| CN105243166A (en) * | 2015-11-10 | 2016-01-13 | 浪潮(北京)电子信息产业有限公司 | Data management device and system, and data writing and reading methods |
| CN106776430A (en) * | 2016-12-12 | 2017-05-31 | 英业达科技有限公司 | Server system |
| CN107479833A (en) * | 2017-08-21 | 2017-12-15 | 中国人民解放军国防科技大学 | Key value storage-oriented remote nonvolatile memory access and management method |
| CN107479833B (en) * | 2017-08-21 | 2020-04-17 | 中国人民解放军国防科技大学 | Key value storage-oriented remote nonvolatile memory access and management method |
| CN107391049A (en) * | 2017-09-08 | 2017-11-24 | 南宁磁动电子科技有限公司 | Storage connection equipment and storage system |
| CN107391049B (en) * | 2017-09-08 | 2023-05-26 | 南宁磁动电子科技有限公司 | Storage connection device and storage system |
| CN111857580A (en) * | 2020-07-06 | 2020-10-30 | 苏州浪潮智能科技有限公司 | Same writing method and device of distributed storage system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2047370B1 (en) | Method and apparatus for distributing usb hub functions across a network | |
| CA2733089C (en) | Method and apparatus for connecting usb devices to a remote computer | |
| EP1581875B1 (en) | Using direct memory access for performing database operations between two or more machines | |
| US7177912B1 (en) | SCSI transport protocol via TCP/IP using existing network hardware and software | |
| US8856388B2 (en) | Method and apparatus for connecting USB devices to a computer | |
| US10484472B2 (en) | Methods and systems for efficiently moving data between nodes in a cluster | |
| US7200641B1 (en) | Method and system for encoding SCSI requests for transmission using TCP/IP | |
| CN102843435A (en) | Access and response method and access and response system of storing medium in cluster system | |
| CN112783667B (en) | Memory sharing system and method based on virtual environment | |
| WO2006110844A2 (en) | Tunneling sata targets through fibre channel | |
| CN103257941B (en) | Multi-protocol storage controller and system | |
| WO2012143953A2 (en) | Optimized multi-root input output virtualization aware switch | |
| US20100306387A1 (en) | Network interface device | |
| WO2017162175A1 (en) | Data transmission method and device | |
| CN103176751A (en) | Unified service system under multiple storage protocols | |
| CN1331070C (en) | Method and equipment of data communication | |
| WO2023000770A1 (en) | Method and apparatus for processing access request, and storage device and storage medium | |
| CN101655773B (en) | Disk array miniature computer system interface target device and data transmission method | |
| US9317678B2 (en) | System and method for managing logins in a network interface | |
| US7089378B2 (en) | Shared receive queues | |
| CN116471242A (en) | RDMA-based transmitting end, RDMA-based receiving end, data transmission system and data transmission method | |
| CN102868684A (en) | Fiber channel target and realizing method thereof | |
| EP2300925B1 (en) | System to connect a serial scsi array controller to a storage area network | |
| Dalessandro et al. | iSER storage target for object-based storage devices | |
| CN107911414B (en) | Data access system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121226 |