CN104283945A - Storage system, storage area system devices and data transmission method - Google Patents
Storage system, storage area system devices and data transmission method Download PDFInfo
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- CN104283945A CN104283945A CN201410505475.6A CN201410505475A CN104283945A CN 104283945 A CN104283945 A CN 104283945A CN 201410505475 A CN201410505475 A CN 201410505475A CN 104283945 A CN104283945 A CN 104283945A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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Abstract
The invention discloses a storage system, storage area system devices and a data transmission method, and belongs to the technical field of data transmission. The system comprises at least two storage area system devices, and the at least two storage area system devices are connected pairwise. Each storage area system device comprises a plurality of logical units. The at least two storage area system devices comprise the first storage area system device, a primary virtual logical unit is configured on the first storage area system device, and comprises at least one secondary virtual logical unit, the secondary virtual logical units correspond to addressable logical units of users respectively, and the addressable logical units of the users are composed of the logical units on the at least two storage area system devices. The corresponding relation of the primary virtual logical unit and/or the secondary virtual logical units and the addressable logical units of the users is configured on the first storage area system device.
Description
Technical field
The present invention relates to technical field of data transmission, particularly a kind of storage system, storage area system equipment and data transmission method.
Background technology
In traditional data center, and storage area system (English: Storage Area Network, be called for short: SAN) mutually isolated between equipment and SAN equipment, be unfavorable for the unified management of data center, more bring inconvenience to upper layer application.
Such as, the SAN equipment use mode under cloud computing scene: each user needs the information recording all SAN equipment that it is used, and adds management difficulty.Each user sets up network with all SAN equipment used and is connected, and it is mutually isolated between SAN equipment and SAN equipment, data sharing and data flowing need user to get involved, (English: Central Processing Unit is called for short: CPU) resource for the Internet resources of a large amount of consumption user and central processing unit.Under virtual scene, add memory load equilibrium, the difficulty of data Replica etc.
In order to solve the linking number and automatic problem of management that are connected between user with SAN equipment, introduce SAN device adapter (English: concept adapter).First all SAN equipment be mounted on a SAN equipment adapter, and then unification upwards exposes, and user can obtain the view of the SAN with access rights.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
When user obtains the view of multiple SAN, view is complicated; All I/O (English: Input/Output, be called for short: I/O) all through adapter, the SAN equipment as adapter becomes the performance bottleneck of cluster; Further, the data flowing between SAN equipment needs, through SAN equipment adapter, to take the resource of this SAN equipment, affect the service behaviour of this SAN equipment.
Summary of the invention
Embodiments provide a kind of storage system, storage area system equipment and data transmission method.Described technical scheme is as follows:
On the one hand, embodiments provide a kind of storage system, described storage system comprises at least two storage area system equipments, and described at least two storage area system equipments interconnect between two, and each described storage area system equipment comprises multiple logical block,
Described at least two storage area system equipments comprise the first storage area system equipment, described first storage area system equipment configures primary virtual logical block, described primary virtual logical block comprises at least one secondary virtual logical block, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, and the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments;
Described first storage area system equipment is configured with the corresponding relation of the logical block of described primary virtual logical block and described user-accessible, or the corresponding relation of the secondary virtual logical block described first storage area system equipment is configured with in described primary virtual logical block and the logical block of described user-accessible, or described first storage area system equipment is configured with described primary virtual logical block, corresponding relation between described secondary logic units and the logical block three of described user-accessible.
In a kind of implementation of the embodiment of the present invention, described first storage area system equipment is used for:
Receive the first small computer system interface scsi command, described first scsi command comprises at least one in the numbering of primary virtual logical block and the numbering of secondary virtual logical block;
The numbering of primary virtual logical block of carrying according to described first scsi command and/or the numbering of secondary virtual logical block, search the corresponding relation being configured in described first storage area system equipment, determine the logical block of the described user-accessible that described first scsi command will be accessed.
In the another kind of implementation of the embodiment of the present invention, each described storage area system equipment preserves the facility information of all storage area system equipments in described storage system, and described facility information comprises and stores Internet protocol IP address, authentication mode, one of any or combination in any in username and password.
In the another kind of implementation of the embodiment of the present invention, described first storage area system equipment is used for:
Receive the second scsi command, described second scsi command comprises at least one in the numbering of primary virtual logical block and the numbering of secondary virtual logical block, described second scsi command also comprises query statement, and described query statement is used for asking the facility information of storage area system equipment;
The numbering of primary virtual logical block of carrying according to described second scsi command and/or the numbering of secondary virtual logical block, search the corresponding relation being configured in described first storage area system equipment, determine the facility information of the storage area system equipment that described second scsi command is corresponding.
On the other hand, the embodiment of the present invention additionally provides a kind of data transmission method, and be applicable to the first storage area system equipment in storage system, described storage system comprises at least two storage area system equipments, described at least two storage area system equipments interconnect between two, and described method comprises:
Receive the first small computer system interface scsi command, described first scsi command comprises at least one in the numbering of primary virtual logical block and the numbering of secondary virtual logical block;
The numbering of primary virtual logical block of carrying according to described first scsi command and/or the numbering of secondary virtual logical block, search the corresponding relation of the logical block of described primary virtual logical block and user-accessible, or the corresponding relation of the described secondary virtual logical block in described primary virtual logical block and the logical block of described user-accessible, or described primary virtual logical block, corresponding relation between the logical block three of described secondary logic units and described user-accessible, determine the logical block of the described user-accessible that described first scsi command will be accessed.
In a kind of implementation of the embodiment of the present invention, described method also comprises:
Configure described primary virtual logical block, described primary virtual logical block comprises secondary virtual logical block described at least one, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, and the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments.
On the other hand, the embodiment of the present invention additionally provides a kind of storage area system equipment, described storage area system equipment is in storage system, described storage system comprises at least two storage area system equipments, described at least two storage area system equipments interconnect between two, and described storage area system equipment comprises:
Receiver module, for receiving the first small computer system interface scsi command, described first scsi command comprises at least one in the numbering of primary virtual logical block and the numbering of secondary virtual logical block;
Search module, for the numbering of primary virtual logical block of carrying according to described first scsi command and/or the numbering of secondary virtual logical block, search the corresponding relation of the logical block of described primary virtual logical block and user-accessible, or the corresponding relation of the described secondary virtual logical block in described primary virtual logical block and the logical block of described user-accessible, or described primary virtual logical block, corresponding relation between the logical block three of described secondary logic units and described user-accessible, determine the logical block of the described user-accessible that described first scsi command will be accessed.
In a kind of implementation of the embodiment of the present invention, described storage area system equipment also comprises:
Configuration module, for configuring described primary virtual logical block, described primary virtual logical block comprises secondary virtual logical block described at least one, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, and the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments.
On the other hand, the embodiment of the present invention additionally provides a kind of data transmission method, and be applicable to the first storage area system equipment in storage system, described storage system comprises at least two storage area system equipments, described at least two storage area system equipments interconnect between two, and described method comprises:
Receive the second scsi command, described second scsi command comprises at least one in the numbering of primary virtual logical block and the numbering of secondary virtual logical block, described second scsi command also comprises query statement, and described query statement is used for asking the facility information of storage area system equipment;
The numbering of primary virtual logical block of carrying according to described second scsi command and/or the numbering of secondary virtual logical block, search the corresponding relation of the logical block of described primary virtual logical block and user-accessible, or the corresponding relation of the described secondary virtual logical block in described primary virtual logical block and the logical block of described user-accessible, or described primary virtual logical block, corresponding relation between the logical block three of described secondary logic units and described user-accessible, determine the facility information of the storage area system equipment that described second scsi command is corresponding.
On the other hand, the embodiment of the present invention additionally provides a kind of storage area system equipment, described storage area system equipment is in storage system, described storage system comprises at least two storage area system equipments, described at least two storage area system equipments interconnect between two, and described storage area system equipment comprises:
Receiver module, for receiving the second scsi command, described second scsi command comprises at least one in the numbering of primary virtual logical block and the numbering of secondary virtual logical block, described second scsi command also comprises query statement, and described query statement is used for asking the facility information of storage area system equipment;
Search module, for the numbering of primary virtual logical block of carrying according to described second scsi command and/or the numbering of secondary virtual logical block, search the corresponding relation of the logical block of described primary virtual logical block and user-accessible, or the corresponding relation of the described secondary virtual logical block in described primary virtual logical block and the logical block of described user-accessible, or described primary virtual logical block, corresponding relation between the logical block three of described secondary logic units and described user-accessible, determine the facility information of the storage area system equipment that described second scsi command is corresponding.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
First, the present invention by configuring primary virtual logical block on storage area system equipment, described primary virtual logical block comprises at least one secondary virtual logical block, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments, and configure the corresponding relation of the logical block of primary virtual logical block and secondary virtual logical block and user-accessible, when user needs the logical block of accessing its user-accessible only to need to carry the numbering of primary virtual logical block and secondary virtual logical block, the view that user gets simultaneously is the view of primary virtual logical block, compared to prior art, User is succinctly single, secondly, the present invention is by interconnecting SAN equipment all in storage system between two, each user only needs and any one the SAN equipment connection in storage system, namely may have access to all SAN equipment in storage system, avoiding all users is connected on a SAN equipment, avoid when all users are connected on a SAN equipment, cause the resource of this SAN equipment occupied, affect the problem of the service behaviour of this SAN equipment.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the storage system that the embodiment of the present invention one provides;
Fig. 2 is the structural representation of the storage system that the embodiment of the present invention two provides;
Fig. 3 is the structural representation of the storage system that the embodiment of the present invention three provides;
Fig. 4 is the data transmission method flow chart that the embodiment of the present invention four provides;
Fig. 5 is the data transmission method flow chart that the embodiment of the present invention five provides;
Fig. 6 is the data transmission method flow chart that the embodiment of the present invention six provides;
Fig. 7 is the block diagram of the SAN equipment that the embodiment of the present invention seven provides;
Fig. 8 is the block diagram of the SAN equipment that the embodiment of the present invention eight provides;
Fig. 9 is the block diagram of the SAN equipment that the embodiment of the present invention nine provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment one
Embodiments provide a kind of storage system, see Fig. 1, this storage system 10 comprises at least two SAN equipment, described at least two SAN equipment interconnect between two, it is (English: Logical Unit Number that each SAN equipment comprises multiple logical block, be called for short: LUN), described at least two SAN equipment comprise a SAN equipment.
The embodiment of the present invention, owing to SAN equipment all in storage system to be passed through network interconnected (i.e. aforementioned interconnection between two) entirely, each user only needs and any one the SAN equipment connection in storage system, namely may have access to all SAN equipment in storage system, avoid all users and be connected on a SAN equipment.Particularly, in order to realize realizing read and write access by any one SAN equipment, the embodiment of the present invention provides and is configured, to realize addressing with the LUN of under type to described storage system:
A described SAN equipment configures primary virtual LUN, described primary virtual LUN comprises at least one secondary virtual LUN, each described secondary virtual LUN is corresponding with the LUN of user-accessible respectively, and the LUN of described user-accessible is made up of the LUN on described at least two SAN equipment;
A described SAN equipment is configured with the corresponding relation of the LUN of described primary virtual LUN and described user-accessible, or the corresponding relation of a secondary virtual LUN described SAN equipment is configured with in described primary virtual LUN and the LUN of described user-accessible, or a described SAN equipment is configured with described primary virtual LUN, corresponding relation between described secondary LUN and the LUN three of described user-accessible.
Further, a described SAN equipment is mounted with the primary virtual LUN that the LUN of user and user-accessible is corresponding.A described SAN equipment is preserved the numbering of described primary virtual LUN and the numbering of described secondary virtual LUN, a described SAN equipment is also preserved the address of each SAN equipment in storage system and the LUN included by each SAN equipment, the address of SAN equipment can be store Internet Protocol (English: Internet Protocol, be called for short: IP) address or No. IQN, the address of each SAN equipment and the LUN included by each SAN equipment can be realized by human configuration or by finding that agreement obtains in storage system.
That is, the LUN of same user-accessible is formed a primary virtual LUN by the present embodiment, and is that this primary virtual LUN configures numbering, further, can also be that the primary virtual LUN of this same user configures secondary virtual LUN, and be that each secondary virtual LUN configures numbering, when being mounted to arbitrarily any SAN equipment (the follow-up SAN equipment being called user's carry) in storage system as this user, the information of described primary virtual LUN is also mounted on the SAN equipment of described user's carry, the SAN equipment of described user's carry preserves the numbering of described primary virtual LUN and the numbering of described secondary virtual LUN, preserve the corresponding relation of the LUN of described primary virtual LUN and this user-accessible simultaneously, or preserve the corresponding relation of the LUN of secondary virtual LUN and this user-accessible, or preserve primary virtual LUN, the corresponding relation of the LUN of secondary LUN and this user-accessible.
In the present embodiment, each user and at least one SAN equipment connection.
Such as, as shown in Figure 1, storage system 10 comprises SAN equipment 1, SAN equipment 2, SAN equipment 3, SAN equipment 4 and SAN equipment 5, and interconnects between these 5 SAN equipment, namely each SAN equipment respectively with other 4 SAN equipment connections.User 1 connects SAN equipment 4, and user 2 connects SAN equipment 1, and user 3 connects SAN equipment 3, and user 4 connects SAN equipment 2, and user 5 connects SAN equipment 4 and SAN equipment 3.Wherein, each use per family can as aforementioned user, and what be correspondingly connected with user is a SAN equipment.
The embodiment of the present invention by configuring primary virtual logical block on storage area system equipment, described primary virtual logical block comprises at least one secondary virtual logical block, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments, and configure the corresponding relation of the logical block of primary virtual logical block and secondary virtual logical block and user-accessible, when user needs the logical block of accessing its user-accessible only to need to carry the numbering of primary virtual logical block and secondary virtual logical block, the view that user gets simultaneously is the view of primary virtual logical block, compared to prior art, User is succinctly single, in addition, the embodiment of the present invention is also by interconnecting SAN equipment all in storage system between two, each user only needs and any one the SAN equipment connection in storage system, namely may have access to all SAN equipment in storage system, avoiding all users is connected on a SAN equipment, avoid when all users are connected on a SAN equipment, cause the resource of this SAN equipment occupied, affect the problem of the service behaviour of this SAN equipment.
Embodiment two
Embodiments provide a kind of storage system, see Fig. 2, this storage system 20 comprises at least two SAN equipment, and described at least two SAN equipment interconnect between two, each SAN equipment comprises multiple LUN, and described at least two SAN equipment comprise a SAN equipment.
The embodiment of the present invention, due to SAN equipment all in storage system is entirely interconnected by network, each user only needs and any one the SAN equipment connection in storage system, namely may have access to all SAN equipment in storage system, avoids all users and be connected on a SAN equipment.Particularly, in order to realize realizing read and write access by any one SAN equipment, the embodiment of the present invention provides and is configured, to realize addressing with the LUN of under type to described storage system:
A described SAN equipment configures primary virtual LUN, described primary virtual LUN comprises at least one secondary virtual LUN, each described secondary virtual LUN is corresponding with the LUN of user-accessible respectively, and the LUN of described user-accessible is made up of the LUN on described at least two SAN equipment;
A described SAN equipment is configured with the corresponding relation of the LUN of described primary virtual LUN and described user-accessible, or the corresponding relation of a secondary virtual LUN described SAN equipment is configured with in described primary virtual LUN and the LUN of described user-accessible, or a described SAN equipment is configured with described primary virtual LUN, corresponding relation between described secondary LUN and the LUN three of described user-accessible.
Further, a described SAN equipment is mounted with the primary virtual LUN that the LUN of user and user-accessible is corresponding.A described SAN equipment is preserved the numbering of described primary virtual LUN and the numbering of described secondary virtual LUN, a described SAN equipment is also preserved the address of each SAN equipment in storage system and the LUN included by each SAN equipment, the address of SAN equipment can be storing IP address or No. IQN, the address of each SAN equipment and the LUN included by each SAN equipment can be realized by human configuration or by finding that agreement obtains in storage system.
In the ordinary course of things, the corresponding relation of the virtual LUN set up and the LUN of user-accessible, need that a primary virtual LUN is added a secondary virtual LUN corresponds on the LUN of a user-accessible simultaneously, if but only have a secondary virtual LUN under a primary virtual LUN, now only need to adopt primary virtual LUN namely to may correspond to the LUN of a user-accessible, if be only configured with a primary virtual LUN in a SAN equipment, so now only need to use secondary virtual LUN namely to may correspond to the LUN of a user-accessible.
In the present embodiment, a SAN equipment is used for:
(English: Small Computer System Interface, be called for short: SCSI) order, the first scsi command comprises at least one in the numbering of primary virtual LUN and the numbering of secondary virtual LUN to receive the first small computer system interface;
The numbering of primary virtual LUN of carrying according to the first scsi command and/or the numbering of secondary virtual LUN, search the corresponding relation being configured in a described SAN equipment, determines the SAN equipment at the LUN place of the user-accessible that the first scsi command will be accessed.
Wherein, the first scsi command is sent by the user be connected with a SAN equipment.
Further, the first scsi command can comprise read write command.
When the SAN equipment at the LUN place found is a described SAN equipment, described read write command is performed to the described LUN found, and return data block.
When the SAN equipment at the LUN place found is other SAN equipment in described storage system, read write command is transmitted to the SAN equipment at the LUN place found, and the data block that the SAN equipment receiving the LUN place found returns, the data block returned is sent to user.
Particularly, when searching, first according to the numbering of the primary virtual LUN in scsi command and/or the numbering of secondary virtual LUN, determine corresponding primary virtual LUN and secondary virtual LUN, then search the LUN of user-accessible corresponding to primary virtual LUN and secondary virtual LUN according to corresponding relation, finally determine the LUN place SAN equipment of this user-accessible.
In the present embodiment, user only needs and a SAN equipment connection, and network is easy to connect.
Such as, as shown in Figure 2, storage system 20 comprises SAN equipment 1, SAN equipment 2, SAN equipment 3, SAN equipment 4 and SAN equipment 5, and interconnects between these 5 SAN equipment, namely each SAN equipment respectively with other 4 SAN equipment connections.User 1 connects SAN equipment 4, and user 2 connects SAN equipment 1, and user 3 connects SAN equipment 3, and user 4 connects SAN equipment 2, and user 5 connects SAN equipment 4 and SAN equipment 3.Wherein, each use per family can as aforementioned user, and what be correspondingly connected with user is a SAN equipment.
The embodiment of the present invention by configuring primary virtual logical block on storage area system equipment, described primary virtual logical block comprises at least one secondary virtual logical block, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments, and configure the corresponding relation of the logical block of primary virtual logical block and secondary virtual logical block and user-accessible, when user needs the logical block of accessing its user-accessible only to need to carry the numbering of primary virtual logical block and secondary virtual logical block, the view that user gets simultaneously is the view of primary virtual logical block, compared to prior art, User is succinctly single, in addition, the embodiment of the present invention is also by interconnecting SAN equipment all in storage system between two, each user only needs and any one the SAN equipment connection in storage system, namely may have access to all SAN equipment in storage system, avoiding all users is connected on a SAN equipment, avoid when all users are connected on a SAN equipment, cause the resource of this SAN equipment occupied, affect the problem of the service behaviour of this SAN equipment.
Embodiment three
Embodiments provide a kind of storage system, see Fig. 3, this storage system 30 comprises 5 SAN equipment, and 5 SAN equipment interconnect between two, and each SAN equipment comprises multiple LUN, and 5 SAN equipment comprise a SAN equipment.Here just as an example, the application does not limit this quantity of SAN equipment.
In the present embodiment, the configuration mode of LUN can be identical with embodiment one or two, repeats no more here.
In the present embodiment, each SAN equipment preserves the facility information of all SAN equipment in described storage system, and described facility information comprises one of any or combination in any in storing IP address, authentication mode, username and password.
In the present embodiment, a SAN equipment is used for:
Receive the second scsi command, the second scsi command comprises at least one in the numbering of primary virtual LUN and the numbering of secondary virtual LUN, and described second scsi command also comprises query statement;
The numbering of primary virtual LUN of carrying according to described second scsi command and/or the numbering of secondary virtual LUN, search the corresponding relation being configured in a described SAN equipment, determines the facility information of the SAN equipment that described second scsi command is corresponding.
Wherein, the second scsi command is sent by the user be connected with a SAN equipment.
Further, the facility information found can also be returned to user by a SAN equipment.
Wherein, described query statement is used for asking the facility information of SAN equipment.
As shown in Figure 3, be a SAN equipment for user 1, SAN equipment 4, user 1 except with except a SAN equipment connection, also with other two SAN equipment connections.In the present embodiment, user 1 except being undertaken except transfer of data by a SAN equipment, can also directly and oneself direct-connected SAN equipment carry out transfer of data, before carrying out transfer of data, user 1 needs to be connected, comprising processes such as certification log in this SAN equipment.Before certification logs in, user 1 only need to second scsi command of a SAN equipment transmission with query statement, the facility information needing the SAN equipment connected can be obtained, facility information comprises certification logon information, thus complete from being dynamically connected, do not need artificial input, namely save artificial, facilitate the management of certification logon information.
The embodiment of the present invention by configuring primary virtual logical block on storage area system equipment, described primary virtual logical block comprises at least one secondary virtual logical block, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments, and configure the corresponding relation of the logical block of primary virtual logical block and secondary virtual logical block and user-accessible, when user needs the logical block of accessing its user-accessible only to need to carry the numbering of primary virtual logical block and secondary virtual logical block, the view that user gets simultaneously is the view of primary virtual logical block, compared to prior art, User is succinctly single, in addition, the embodiment of the present invention is also by interconnecting SAN equipment all in storage system between two, each user only needs and any one the SAN equipment connection in storage system, namely may have access to all SAN equipment in storage system, avoiding all users is connected on a SAN equipment, avoid when all users are connected on a SAN equipment, cause the resource of this SAN equipment occupied, affect the problem of the service behaviour of this SAN equipment, simultaneously, when user and a SAN equipment connection also with other SAN equipment connections, now user is except being undertaken except transfer of data by a SAN equipment, can also directly and oneself direct-connected SAN equipment carry out transfer of data, before carrying out transfer of data, user needs to be connected with this SAN equipment, comprising processes such as certification log in, in the process, user only need to second scsi command of a SAN equipment transmission with query statement, the facility information needing the SAN equipment connected can be obtained, facility information comprises certification logon information, thus complete from being dynamically connected, do not need artificial input, namely save artificial, facilitate the management of certification logon information.
Embodiment four
Embodiments provide a kind of data transmission method, be applicable to the SAN equipment in storage system, storage system comprises at least two SAN equipment, at least two SAN equipment interconnect between two, and wherein, the configuration mode of LUN can be identical with embodiment one or two, see Fig. 4, the method comprises:
Step 401: receive the first scsi command, described first scsi command comprises at least one in the numbering of primary virtual LUN and the numbering of secondary virtual LUN.
Step 402: the numbering of primary virtual LUN of carrying according to described first scsi command and/or the numbering of secondary virtual LUN, search the corresponding relation of the LUN of described primary virtual LUN and user-accessible, or the corresponding relation of the described secondary virtual LUN in described primary virtual LUN and the LUN of described user-accessible, or described primary virtual LUN, corresponding relation between described secondary LUN and the LUN three of described user-accessible, determine the LUN of the described user-accessible that described first scsi command will be accessed.
The embodiment of the present invention by configuring primary virtual logical block on storage area system equipment, described primary virtual logical block comprises at least one secondary virtual logical block, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments, and configure the corresponding relation of the logical block of primary virtual logical block and secondary virtual logical block and user-accessible, when user needs the logical block of accessing its user-accessible only to need to carry the numbering of primary virtual logical block and secondary virtual logical block, the view that user gets simultaneously is the view of primary virtual logical block, compared to prior art, User is succinctly single, in addition, the embodiment of the present invention is also by interconnecting SAN equipment all in storage system between two, each user only needs and any one the SAN equipment connection in storage system, namely may have access to all SAN equipment in storage system, avoiding all users is connected on a SAN equipment, avoid when all users are connected on a SAN equipment, cause the resource of this SAN equipment occupied, affect the problem of the service behaviour of this SAN equipment.
Embodiment five
Embodiments provide a kind of data transmission method, be applicable to the SAN equipment in storage system, storage system comprises at least two SAN equipment, at least two SAN equipment interconnect between two, and wherein, the configuration mode of LUN can be identical with embodiment one or two, see Fig. 5, the method comprises:
Step 501: configure described primary virtual LUN, described primary virtual LUN comprises secondary virtual LUN described at least one, each described secondary virtual LUN is corresponding with the LUN of user-accessible respectively, and the LUN of described user-accessible is made up of the logical block on described at least two storage area system equipments.
Wherein, a described SAN equipment connection in user and described storage system.
Step 502: receive the first scsi command, described first scsi command comprises at least one in the numbering of primary virtual LUN and the numbering of secondary virtual LUN, and described first scsi command also comprises read write command.
Step 503: the numbering of primary virtual LUN of carrying according to described first scsi command and/or the numbering of secondary virtual LUN, search the corresponding relation of the LUN of described primary virtual LUN and user-accessible, or the corresponding relation of the described secondary virtual LUN in described primary virtual LUN and the LUN of described user-accessible, or described primary virtual LUN, corresponding relation between described secondary LUN and the LUN three of described user-accessible, determine the LUN of the described user-accessible that described first scsi command will be accessed.
Particularly, when searching, first according to the numbering of the primary virtual LUN in scsi command and/or the numbering of secondary virtual LUN, determine corresponding primary virtual LUN and secondary virtual LUN, then search the LUN of user-accessible corresponding to primary virtual LUN and secondary virtual LUN according to corresponding relation, finally determine the LUN place SAN equipment of this user-accessible.
Step 504: when the SAN equipment at the LUN place found is a described SAN equipment, described read write command is performed to the described LUN found, and return data block; When the SAN equipment at the LUN place found is other SAN equipment in described storage system, read write command is transmitted to the SAN equipment at the LUN place found, and the data block that the SAN equipment receiving the LUN place found returns, the data block returned is sent to user.
The embodiment of the present invention by configuring primary virtual logical block on storage area system equipment, described primary virtual logical block comprises at least one secondary virtual logical block, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments, and configure the corresponding relation of the logical block of primary virtual logical block and secondary virtual logical block and user-accessible, when user needs the logical block of accessing its user-accessible only to need to carry the numbering of primary virtual logical block and secondary virtual logical block, the view that user gets simultaneously is the view of primary virtual logical block, compared to prior art, User is succinctly single, in addition, the embodiment of the present invention is also by interconnecting SAN equipment all in storage system between two, each user only needs and any one the SAN equipment connection in storage system, namely may have access to all SAN equipment in storage system, avoiding all users is connected on a SAN equipment, avoid when all users are connected on a SAN equipment, cause the resource of this SAN equipment occupied, affect the problem of the service behaviour of this SAN equipment.
Embodiment six
Embodiments provide a kind of data transmission method, be applicable to the SAN equipment in storage system, storage system comprises at least two SAN equipment, at least two SAN equipment interconnect between two, and wherein, the configuration mode of LUN can be identical with embodiment one or two, see Fig. 6, the method comprises:
Step 601: receive the second scsi command, second scsi command comprises at least one in the numbering of primary virtual LUN and the numbering of secondary virtual LUN, described second scsi command also comprises query statement, and described query statement is used for asking the facility information of SAN equipment.
In the present embodiment, user and at least two described SAN equipment connections.
In the present embodiment, each described SAN equipment preserves the facility information of all described SAN equipment in described storage system, and described facility information comprises storage Internet protocol IP address, authentication mode, username and password.
Step 602: the numbering of primary virtual LUN of carrying according to described second scsi command and/or the numbering of secondary virtual LUN, search the corresponding relation of the LUN of described primary virtual LUN and user-accessible, or the corresponding relation of the described secondary virtual LUN in described primary virtual LUN and the LUN of described user-accessible, or described primary virtual LUN, corresponding relation between described secondary LUN and the LUN three of described user-accessible, determine the facility information of the SAN equipment that described second scsi command is corresponding.
Further, the method can also comprise: the facility information found is returned to user.
In the present embodiment, user is except being undertaken except transfer of data by a SAN equipment, can also directly and oneself direct-connected SAN equipment carry out transfer of data, before carrying out transfer of data, user needs to be connected with this SAN equipment, comprising processes such as certification log in, in the process, user only need to second scsi command of a SAN equipment transmission with query statement, the facility information needing the SAN equipment connected can be obtained, facility information comprises certification logon information, thus complete from being dynamically connected, do not need artificial input, namely save artificial, facilitate the management of certification logon information.
The embodiment of the present invention by configuring primary virtual logical block on storage area system equipment, described primary virtual logical block comprises at least one secondary virtual logical block, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments, and configure the corresponding relation of the logical block of primary virtual logical block and secondary virtual logical block and user-accessible, when user needs the logical block of accessing its user-accessible only to need to carry the numbering of primary virtual logical block and secondary virtual logical block, the view that user gets simultaneously is the view of primary virtual logical block, compared to prior art, User is succinctly single, in addition, the embodiment of the present invention is also by interconnecting SAN equipment all in storage system between two, each user only needs and any one the SAN equipment connection in storage system, namely may have access to all SAN equipment in storage system, avoiding all users is connected on a SAN equipment, avoid when all users are connected on a SAN equipment, cause the resource of this SAN equipment occupied, affect the problem of the service behaviour of this SAN equipment, simultaneously, when user and a SAN equipment connection also with other SAN equipment connections, now user is except being undertaken except transfer of data by a SAN equipment, can also directly and oneself direct-connected SAN equipment carry out transfer of data, before carrying out transfer of data, user needs to be connected with this SAN equipment, comprising processes such as certification log in, in the process, user only need to second scsi command of a SAN equipment transmission with query statement, the facility information needing the SAN equipment connected can be obtained, facility information comprises certification logon information, thus complete from being dynamically connected, do not need artificial input, namely save artificial, facilitate the management of certification logon information.
Embodiment seven
Embodiments provide a kind of storage area system equipment, see Fig. 7, this SAN equipment is in storage system, storage system comprises at least two SAN equipment, and at least two SAN equipment interconnect between two, wherein, the configuration mode of LUN can be identical with embodiment one or two, and this SAN equipment comprises:
Receiver module 701, for receiving the first scsi command, described first scsi command comprises at least one in the numbering of primary virtual LUN and the numbering of secondary virtual LUN;
Search module 702, for the numbering of primary virtual LUN of carrying according to described first scsi command and/or the numbering of secondary virtual LUN, search the corresponding relation of the LUN of described primary virtual LUN and user-accessible, or the corresponding relation of the described secondary virtual LUN in described primary virtual LUN and the LUN of described user-accessible, or described primary virtual LUN, corresponding relation between described secondary LUN and the LUN three of described user-accessible, determine the LUN of the described user-accessible that described first scsi command will be accessed.
The embodiment of the present invention by configuring primary virtual logical block on storage area system equipment, described primary virtual logical block comprises at least one secondary virtual logical block, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments, and configure the corresponding relation of the logical block of primary virtual logical block and secondary virtual logical block and user-accessible, when user needs the logical block of accessing its user-accessible only to need to carry the numbering of primary virtual logical block and secondary virtual logical block, the view that user gets simultaneously is the view of primary virtual logical block, compared to prior art, User is succinctly single, in addition, the embodiment of the present invention is also by interconnecting SAN equipment all in storage system between two, each user only needs and any one the SAN equipment connection in storage system, namely may have access to all SAN equipment in storage system, avoiding all users is connected on a SAN equipment, avoid when all users are connected on a SAN equipment, cause the resource of this SAN equipment occupied, affect the problem of the service behaviour of this SAN equipment.
Embodiment eight
Embodiments provide a kind of storage area system equipment, see Fig. 8, this SAN equipment is in storage system, storage system comprises at least two SAN equipment, and at least two SAN equipment interconnect between two, wherein, the configuration mode of LUN can be identical with embodiment one or two, and this SAN equipment comprises:
Receiver module 801, for receiving the first scsi command, described first scsi command comprises at least one in the numbering of primary virtual LUN and the numbering of secondary virtual LUN, and described first scsi command also comprises read write command;
Search module 802, for the numbering of primary virtual LUN of carrying according to described first scsi command and/or the numbering of secondary virtual LUN, search the corresponding relation of the LUN of described primary virtual LUN and user-accessible, or the corresponding relation of the described secondary virtual LUN in described primary virtual LUN and the LUN of described user-accessible, or described primary virtual LUN, corresponding relation between described secondary LUN and the LUN three of described user-accessible, determine the LUN of the described user-accessible that described first scsi command will be accessed;
Processing module 803, for when the SAN equipment at the LUN place found is a described SAN equipment, performs described read write command to the described LUN found, and return data block; When the SAN equipment at the LUN place found is other SAN equipment in described storage system, read write command is transmitted to the SAN equipment at the LUN place found, and the data block that the SAN equipment receiving the LUN place found returns, the data block returned is sent to user.
Particularly, when searching, first according to the numbering of the primary virtual LUN in scsi command and/or the numbering of secondary virtual LUN, determine corresponding primary virtual LUN and secondary virtual LUN, then search the LUN of user-accessible corresponding to primary virtual LUN and secondary virtual LUN according to corresponding relation, finally determine the LUN place SAN equipment of this user-accessible.
In embodiments of the present invention, user and described SAN equipment connection.
Further, SAN equipment also comprises::
Configuration module 804, for configuring described primary virtual LUN, described primary virtual LUN comprises secondary virtual LUN described at least one, each described secondary virtual LUN is corresponding with the LUN of user-accessible respectively, and the LUN of described user-accessible is made up of the logical block on described at least two storage area system equipments.
The embodiment of the present invention by configuring primary virtual logical block on storage area system equipment, described primary virtual logical block comprises at least one secondary virtual logical block, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments, and configure the corresponding relation of the logical block of primary virtual logical block and secondary virtual logical block and user-accessible, when user needs the logical block of accessing its user-accessible only to need to carry the numbering of primary virtual logical block and secondary virtual logical block, the view that user gets simultaneously is the view of primary virtual logical block, compared to prior art, User is succinctly single, in addition, the embodiment of the present invention is also by interconnecting SAN equipment all in storage system between two, each user only needs and any one the SAN equipment connection in storage system, namely may have access to all SAN equipment in storage system, avoiding all users is connected on a SAN equipment, avoid when all users are connected on a SAN equipment, cause the resource of this SAN equipment occupied, affect the problem of the service behaviour of this SAN equipment.
Embodiment nine
Embodiments provide a kind of storage area system equipment, see Fig. 9, this SAN equipment is in storage system, storage system comprises at least two SAN equipment, and at least two SAN equipment interconnect between two, wherein, the configuration mode of LUN can be identical with embodiment one or two, and this SAN equipment comprises:
Receiver module 901, for receiving the second scsi command, second scsi command comprises at least one in the numbering of primary virtual LUN and the numbering of secondary virtual LUN, and described second scsi command also comprises query statement, and described query statement is used for asking the facility information of SAN equipment.
Search module 902, for the numbering of primary virtual LUN of carrying according to described second scsi command and/or the numbering of secondary virtual LUN, search the corresponding relation of the LUN of described primary virtual LUN and user-accessible, or the corresponding relation of the described secondary virtual LUN in described primary virtual LUN and the LUN of described user-accessible, or described primary virtual LUN, corresponding relation between described secondary LUN and the LUN three of described user-accessible, determine the facility information of the SAN equipment that described second scsi command is corresponding.
In the present embodiment, user and at least two described SAN equipment connections.
In the present embodiment, each described SAN equipment preserves the facility information of all described SAN equipment in described storage system, and described facility information comprises storage Internet protocol IP address, authentication mode, username and password.
Further, this SAN equipment can also comprise: processing module, for the facility information found is returned to user.
In the present embodiment, user is except being undertaken except transfer of data by a SAN equipment, can also directly and oneself direct-connected SAN equipment carry out transfer of data, before carrying out transfer of data, user needs to be connected with this SAN equipment, comprising processes such as certification log in, in the process, user only need to second scsi command of a SAN equipment transmission with query statement, the facility information needing the SAN equipment connected can be obtained, facility information comprises certification logon information, thus complete from being dynamically connected, do not need artificial input, namely save artificial, facilitate the management of certification logon information.
The embodiment of the present invention by configuring primary virtual logical block on storage area system equipment, described primary virtual logical block comprises at least one secondary virtual logical block, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments, and configure the corresponding relation of the logical block of primary virtual logical block and secondary virtual logical block and user-accessible, when user needs the logical block of accessing its user-accessible only to need to carry the numbering of primary virtual logical block and secondary virtual logical block, the view that user gets simultaneously is the view of primary virtual logical block, compared to prior art, User is succinctly single, in addition, the embodiment of the present invention is also by interconnecting SAN equipment all in storage system between two, each user only needs and any one the SAN equipment connection in storage system, namely may have access to all SAN equipment in storage system, avoiding all users is connected on a SAN equipment, avoid when all users are connected on a SAN equipment, cause the resource of this SAN equipment occupied, affect the problem of the service behaviour of this SAN equipment, simultaneously, when user and a SAN equipment connection also with other SAN equipment connections, now user is except being undertaken except transfer of data by a SAN equipment, can also directly and oneself direct-connected SAN equipment carry out transfer of data, before carrying out transfer of data, user needs to be connected with this SAN equipment, comprising processes such as certification log in, in the process, user only need to second scsi command of a SAN equipment transmission with query statement, the facility information needing the SAN equipment connected can be obtained, facility information comprises certification logon information, thus complete from being dynamically connected, do not need artificial input, namely save artificial, facilitate the management of certification logon information.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a storage system, is characterized in that, described storage system comprises at least two storage area system equipments, and described at least two storage area system equipments interconnect between two, and each described storage area system equipment comprises multiple logical block,
Described at least two storage area system equipments comprise the first storage area system equipment, described first storage area system equipment configures primary virtual logical block, described primary virtual logical block comprises at least one secondary virtual logical block, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, and the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments;
Described first storage area system equipment is configured with the corresponding relation of the logical block of described primary virtual logical block and described user-accessible, or the corresponding relation of the secondary virtual logical block described first storage area system equipment is configured with in described primary virtual logical block and the logical block of described user-accessible, or described first storage area system equipment is configured with described primary virtual logical block, corresponding relation between described secondary logic units and the logical block three of described user-accessible.
2. system according to claim 1, is characterized in that, described first storage area system equipment is used for:
Receive the first small computer system interface scsi command, described first scsi command comprises at least one in the numbering of primary virtual logical block and the numbering of secondary virtual logical block;
The numbering of primary virtual logical block of carrying according to described first scsi command and/or the numbering of secondary virtual logical block, search the corresponding relation being configured in described first storage area system equipment, determine the logical block of the described user-accessible that described first scsi command will be accessed.
3. system according to claim 1, it is characterized in that, each described storage area system equipment preserves the facility information of all storage area system equipments in described storage system, and described facility information comprises and stores Internet protocol IP address, authentication mode, one of any or combination in any in username and password.
4. system according to claim 3, is characterized in that, described first storage area system equipment is used for:
Receive the second scsi command, described second scsi command comprises at least one in the numbering of primary virtual logical block and the numbering of secondary virtual logical block, described second scsi command also comprises query statement, and described query statement is used for asking the facility information of storage area system equipment;
The numbering of primary virtual logical block of carrying according to described second scsi command and/or the numbering of secondary virtual logical block, search the corresponding relation being configured in described first storage area system equipment, determine the facility information of the storage area system equipment that described second scsi command is corresponding.
5. a data transmission method, it is characterized in that, be applicable to the first storage area system equipment in storage system, described storage system comprises at least two storage area system equipments, described at least two storage area system equipments interconnect between two, and described method comprises:
Receive the first small computer system interface scsi command, described first scsi command comprises at least one in the numbering of primary virtual logical block and the numbering of secondary virtual logical block;
The numbering of primary virtual logical block of carrying according to described first scsi command and/or the numbering of secondary virtual logical block, search the corresponding relation of the logical block of described primary virtual logical block and user-accessible, or the corresponding relation of the described secondary virtual logical block in described primary virtual logical block and the logical block of described user-accessible, or described primary virtual logical block, corresponding relation between the logical block three of described secondary logic units and described user-accessible, determine the logical block of the described user-accessible that described first scsi command will be accessed.
6. method according to claim 5, is characterized in that, described method also comprises:
Configure described primary virtual logical block, described primary virtual logical block comprises secondary virtual logical block described at least one, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, and the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments.
7. a storage area system equipment, it is characterized in that, described storage area system equipment is in storage system, and described storage system comprises at least two storage area system equipments, described at least two storage area system equipments interconnect between two, and described storage area system equipment comprises:
Receiver module, for receiving the first small computer system interface scsi command, described first scsi command comprises at least one in the numbering of primary virtual logical block and the numbering of secondary virtual logical block;
Search module, for the numbering of primary virtual logical block of carrying according to described first scsi command and/or the numbering of secondary virtual logical block, search the corresponding relation of the logical block of described primary virtual logical block and user-accessible, or the corresponding relation of the described secondary virtual logical block in described primary virtual logical block and the logical block of described user-accessible, or described primary virtual logical block, corresponding relation between the logical block three of described secondary logic units and described user-accessible, determine the logical block of the described user-accessible that described first scsi command will be accessed.
8. storage area system equipment according to claim 7, is characterized in that, described storage area system equipment also comprises:
Configuration module, for configuring described primary virtual logical block, described primary virtual logical block comprises secondary virtual logical block described at least one, each described secondary virtual logical block is corresponding with the logical block of user-accessible respectively, and the logical block of described user-accessible is made up of the logical block on described at least two storage area system equipments.
9. a data transmission method, it is characterized in that, be applicable to the first storage area system equipment in storage system, described storage system comprises at least two storage area system equipments, described at least two storage area system equipments interconnect between two, and described method comprises:
Receive the second scsi command, described second scsi command comprises at least one in the numbering of primary virtual logical block and the numbering of secondary virtual logical block, described second scsi command also comprises query statement, and described query statement is used for asking the facility information of storage area system equipment;
The numbering of primary virtual logical block of carrying according to described second scsi command and/or the numbering of secondary virtual logical block, search the corresponding relation of the logical block of described primary virtual logical block and user-accessible, or the corresponding relation of the described secondary virtual logical block in described primary virtual logical block and the logical block of described user-accessible, or described primary virtual logical block, corresponding relation between the logical block three of described secondary logic units and described user-accessible, determine the facility information of the storage area system equipment that described second scsi command is corresponding.
10. a storage area system equipment, it is characterized in that, described storage area system equipment is in storage system, and described storage system comprises at least two storage area system equipments, described at least two storage area system equipments interconnect between two, and described storage area system equipment comprises:
Receiver module, for receiving the second scsi command, described second scsi command comprises at least one in the numbering of primary virtual logical block and the numbering of secondary virtual logical block, described second scsi command also comprises query statement, and described query statement is used for asking the facility information of storage area system equipment;
Search module, for the numbering of primary virtual logical block of carrying according to described second scsi command and/or the numbering of secondary virtual logical block, search the corresponding relation of the logical block of described primary virtual logical block and user-accessible, or the corresponding relation of the described secondary virtual logical block in described primary virtual logical block and the logical block of described user-accessible, or described primary virtual logical block, corresponding relation between the logical block three of described secondary logic units and described user-accessible, determine the facility information of the storage area system equipment that described second scsi command is corresponding.
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