CN101808123A - Method and device for accessing storage resources in storage system - Google Patents
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Abstract
The invention provides a method and a device for accessing storage resources in a storage system, which relate to the storage field and are invented to solve the problem of the prior art that some users cannot access the storage system in the access way of single protocol type. The method comprises the following steps that: all protocol types used when the storage resources are accessed in the storage system are obtained; an analysis module for analyzing all the protocol types is configured; and when a user initiates a request of accessing the storage resources in the storage system, the analysis module is used to analyze the protocol types used by the user, so as to provide the storage resources for the user. The technical scheme provided by the invention can be applied to the field of storage resource management.
Description
Technical field
The present invention relates to field of storage, relate in particular to a kind of in storage system the method and apparatus of accessing storage resources.
Background technology
Storage system uses the user to adopt single agreement to carry out resource access in the prior art, as ISCSI (Internet Small Computer Systems Interface (Internet Small Computer System Interface,) or FC (Fibre Channel, optical-fibre channel).But along with increasing of number of users, user's network environment difference, if adopting still, single-protocol carries out the visit of storage resources, for example, storage system uses the FC agreement to conduct interviews, and when network environment is used described this storage system of the user capture of other protocol types, wants to visit the storage system of using the FC agreement as the user who uses the ISCSI agreement, can cause the user can't carry out the problem of resource access, reduce the service quality of storage system.
Summary of the invention
The invention provides a kind of in storage system the method and apparatus of accessing storage resources, for the user capture storage resources provides personal needs, certain customers can't visit the problem that access way is the storage system of single-protocol type in the prior art to solve.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of in storage system the method for accessing storage resources, comprising:
Employed all accord type when obtaining in the described storage system the described storage resources of visit;
Configuration is used to resolve the parsing module of described all accord type;
When the user initiates to visit the request of described storage resources in the described storage system, adopt described parsing module to resolve the protocol type that described user uses, for described user provides described storage resources.
Further, described method also has following characteristics:
In the described storage system during the described storage resources of visit employed all accord type be to determine in the following way, comprising:
If have main frame that network interface card is installed in the described storage system, the employed protocol type of the described storage resources of visit is Internet Small Computer Systems Interface (ISCSI) agreement in the described storage system;
If there is main frame that optical-fibre channel (FC) card is installed in the described storage system, the employed protocol type of the described storage resources of visit is the FC agreement in the described storage system;
If there is main frame that the IB card is installed in the described storage system, visit described storage resources employed protocol type is safety long-distance password (SRP) agreement and to ISCSI expansion (ISER) agreement of RDMA in the described storage system.
Further, described method also has following characteristics:
If in the described storage system during the described storage resources of visit employed all accord type comprise in ISCSI agreement, FC card and the SRP agreement at least one, the parsing module of configuration is the SCST module;
If in the described storage system during the described storage resources of visit employed protocol type be the ISER agreement, the parsing module of configuration is the STGT module.
Further, described method also has following characteristics: described for described user provides before the described storage resources, also comprise:
Main frame to described user identifies, and specifically comprises: if the protocol type that described user uses is the FC agreement, with WWNP number of host bus on the described subscriber's main station adaptive (HBA) card as host name; If the protocol type that described user uses is SRP agreement and/or ISER agreement, with the IP address of IB card on the described subscriber's main station as host name; If the protocol type that described user uses is the ISCSI agreement, with the node name that shows on the local management software as host name.
Further, described method also has following characteristics: describedly comprise for described user provides described storage resources:
Obtain the access strategy of the protocol type correspondence that described user uses, wherein said access strategy comprises following at least a: the user is carried out authentication, adds to logical volume in the virtual disk and deletes default LUN;
Adopt described access strategy to provide described storage resources for described user.
A kind of in storage system the device of accessing storage resources, comprising:
Acquisition module, employed all accord type when being used for obtaining the described storage resources of described storage system visit;
Configuration module is used to dispose the parsing module that is used to resolve described all accord type;
Access control module is used for when described storage system user initiates to visit the request of described storage resources, adopts described parsing module to resolve the protocol type that described user uses, for described user provides described storage resources.
Further, described method also has following characteristics:
Employed all accord type when described acquisition module specifically is used in the following way determining described storage system accessing storage resources, comprise: if having main frame that network interface card is installed in the described storage system, the employed protocol type of the described storage resources of visit is the ISCSI agreement in the described storage system; If there is main frame that the FC card is installed in the described storage system, the employed protocol type of the described storage resources of visit is the FC agreement in the described storage system; If there is main frame that the IB card is installed in the described storage system, the employed protocol type of the described storage resources of visit is SRP agreement and ISER agreement in the described storage system.
Further, described method also has following characteristics:
Described configuration module specifically is used for: when employed all accord type comprises in ISCSI agreement, FC card and the SRP agreement at least one when described storage system accessing storage resources, and configuration SCST module; When employed protocol type is ISER during accessing storage resources in described storage system, configuration STGT module.
Further, described method also has following characteristics: access control module comprises:
Identify unit was used for before providing described storage resources for described user, and described user's main frame is identified, and specifically comprised: if the protocol type that described user uses is the FC agreement, with WWNP number of HBA card on the described subscriber's main station as host name; If the protocol type that described user uses is SRP agreement and/or ISER agreement, with the IP address of IB card on the described subscriber's main station as host name; If the protocol type that described user uses is the ISCSI agreement, with the node name that shows on the local management software as host name.
Further, described method also has following characteristics: described access control module also comprises:
Acquiring unit is used to obtain the access strategy of the protocol type correspondence that described user uses, and wherein said access strategy comprises following at least a: the user is carried out authentication, adds to logical volume in the virtual disk and deletes default LUN;
Access control unit is used to adopt described access strategy to provide described storage resources for described user.
Technical scheme provided by the invention, employed all accord type when obtaining in the described storage system the described storage resources of visit, configuration is used to resolve the parsing module of described all accord type, when the user initiates to visit the request of described storage resources in the described storage system, adopt described parsing module that the protocol type that described user inserts storage resources is resolved, for described user provides storage resources, guarantee to allow in the storage system access of a plurality of protocol types, for the user capture storage resources provides personal needs, solved that certain customers can't visit the problem that access way is the storage system of single-protocol type in the prior art.
Description of drawings
Fig. 1 is the structural representation that the invention provides a kind of storage system embodiment;
Fig. 2 among the present invention in storage system the method embodiment schematic flow sheet of accessing storage resources;
Fig. 3 is the schematic flow sheet of the method embodiment of middle step 203 embodiment illustrated in fig. 2;
Fig. 4 among the present invention in storage system the device example structure schematic diagram of accessing storage resources;
Fig. 5 is the structural representation of middle access control module 403 embodiment illustrated in fig. 4.
Embodiment
Below in conjunction with accompanying drawing technical scheme provided by the invention is described further.
As shown in Figure 1, the invention provides a kind of storage system, comprise interface management module 101, host groups administration module 102, protocol analysis module 103 and SRM module 104.
Below each module in the described system is explained respectively:
Host Administration pack module 103 is used for the access request that obtains according to the protocol analysis module parses, adds the main frame of this visit storage system to host groups;
Before the visit of introducing described system management storage resources, at first the foundation to storage resources in the described storage system describes:
Create Raid by the volume management instrument, and on Raid, create VG (Volume Group volume group), on VG, create a plurality of LV (Logical Volume, logical volume) then.By SCST (GenericSCSI target mid-level for Linux, the general scsi target device of linux intermediate layer) management tool or STGT (Linux SCSI target framework, linux scsi target device framework) management tool is realized the mapping of LV to LUN, is the corresponding host groups of LUN configuration.Wherein different LV is mapped to LUN and adds in the different host groups, and be numbered for the LUN that is added, the All hosts in the host groups all can be visited LUN all in this host groups, but can't visit the LUN of other host groups.When wherein when main frame adopts ISCSI, FC or SRP agreement to conduct interviews, conducting interviews, when in the host groups a plurality of LUN being arranged, comprise a default LUN (as being 1 LUN for LUN number) among these a plurality of LUN, when only remaining a default LUN in this default LUN and if only if host groups, just allow deleted, all can not be deleted under other situations.
Optionally, on VG, create after the LV, realize the globalize of LV by the SRM module, globalize is to allow all can see all LV on all controllers, and the LV on the controller under being not only, globalize is convenient to the operation of user to LV, comprises deletion, mapping etc.Land the WEB administration interface from different controllers, all can see all LV that bottom is created.
The process of user capture storage resources is as follows in as above storage system, as shown in Figure 2:
Concrete, if there is main frame that HBA (host bus is adaptive) card is installed in the described storage system, then employed protocol type is the FC agreement during accessing storage resources;
If the tcp/ip communication that has main frame to use always in the described storage system promptly only is equipped with common network interface card on the main frame, employed protocol type is the ISCSI agreement during accessing storage resources so;
If there is main frame that the FC card has been installed in the described storage system, then employed protocol type is the FC agreement during accessing storage resources;
If IB (InfiniBand, a kind of high bandwidth of open standard, express network interconnection technique) has been installed in the described storage system, then employed protocol type is SRP agreement and SER agreement during accessing storage resources.
Concrete, if employed protocol type comprises and in ISCSI, FC and the SRP agreement at least one then disposes the SCST module during accessing storage resources; If employed protocol type is the ISER agreement during accessing storage resources, then dispose the STGT module.
Wherein SCST module and STGT module are linux kernel modules, increase income, and directly download this module from the website of increasing income, and install then and just can use.
Wherein step 203 specifically comprises the steps 301～306, as shown in Figure 3:
Step 301, user select the purpose protocol type during from local accessing storage resources the employed protocol type.
Concrete, employed protocol type was specifically in the following way when the user was known local accessing storage resources: WEB administration interface in described storage system, store the access interface of 4 kinds of protocol type correspondences in advance.If the user does corresponding the selection according to the hardware condition of main frame, if the user has operated the page of out of use agreement, after the user chooses partial information, because the protocol type and the employed protocol type of main frame of information are inconsistent in this page, cause described storage system and main frame to communicate, the page can notify the user to make mistakes; If the user has operated the page of the protocol type of local use, then notify the user to allow to adopt this protocol type to conduct interviews, be local the use thereby which protocol type the user can learn.
Wherein, if when employed protocol type is a plurality of during accessing storage resources, for example, adopt the ISCSI agreement, the user is the remote access storage resources very easily, makes things convenient for the selection of user to access way, and wherein the access way of user's selection can be for one or more.
Step 302, user adopt the purpose protocol type to be linked into described storage system.
Step 303, controller are determined described user's purpose protocol type.
Wherein the method for identification communication agreement all is applicable to the present invention in the prior art, repeats no more herein.
Step 304, controller are called the purpose protocol type that parsing module is resolved the user according to user's purpose protocol type.
Concrete, if user's access way is in ISCSI, FC and the SRP agreement at least one, then call the SCST module; If user's access way is the ISER agreement, then call the STGT module.
Step 305, controller are added main frame to host groups according to the access way of described selection.
Wherein this host groups can be divided according to agreement, is the main frame that adopts the ISCSI agreement to conduct interviews as the main frame in first host groups, and the main frame in second host groups is the main frame that adopts the FC agreement to conduct interviews, and the like.And the storage resources in the storage system also can be divided according to protocol type, thereby each host groups can only be visited the storage resources identical with this group protocol type, prevents that host groups from visiting the storage resources of other host groups and causing information leakage.
Further, the main frame of protocol type of the same race can also be set up a plurality of different main frames groups down, LUN in these several main frame groups isolates mutually, promptly with 1 binding of main frame group main frame can only visit LUN in this main frame group 1, and can not visit the sub LUN that organizes in 2 of main frame, though they adopt identical storage protocol.Just say that also not only dissimilar agreements can protected data, the agreement of same kind also can realize protected data.
Concrete, if this main frame does not have corresponding host groups, then also need to create corresponding host groups for this main frame, in the new host groups of creating, increase this main frame again.When wherein in host groups, adding main frame,, the mode of following sign main frame is arranged, comprising according to the purpose protocol type:
If the agreement that adopts is the FC agreement, with WWNP number of HBA card on the main frame as host name;
If the agreement that adopts is SRP agreement and ISER agreement, with the IP address of IB card on the main frame as host name,
If the agreement that adopts is the ISCSI agreement, with the node name that shows on the management software as host name, as the initiator node that writes down on initiator software host name by name.
Optionally, if the agreement that adopts is the ISCSI agreement, compare with other agreements, also comprise in the access strategy of ISCSI agreement: before main frame is joined host groups, also need the user on this main frame is carried out authentication, as input reference password etc., if authentication is passed through, in this host-to-host group, otherwise, refusal joins host groups with main frame, and flow process finishes.
Step 306, controller are distributed to this main frame with storage resources.
Wherein this storage resources is that form with LUN offers main frame, and this storage resources is corresponding with this main frame place host groups, it is the storage resources that the interior main frame of each host groups can only be visited this host groups correspondence, can not visit the storage resources of other host groups, thereby guarantee the access security of storage resources.
Wherein, if the protocol type that access way adopted is not the ISER agreement, compare with the access strategy of ISER agreement, also comprise in the access strategy of ISCSI, FC and SRP agreement: before adding LUN to this main frame, LV need be added among the Vdisk (virtual disk); The ISER agreement does not then need.
Optionally, the user can also according to the actual needs, delete one or more host groups that do not comprise main frame dynamically in the accessing storage resources process; Also can delete the one or more main frames that are in not-connected status in the host groups; Certainly, the user can also delete the LUN in the host groups.When wherein when main frame adopts ISCSI, FC or SRP agreement to conduct interviews, conducting interviews, different with the access strategy of ISER is, when in the host groups a plurality of LUN being arranged, do not allow to delete default LUN yet, as being 1 LUN for LUN number, but allow the LUN of deletion other LUN number, when having only a LUN (be LUN number be 1 LUN) in the host groups that and if only if, just allow to delete default LUN.
Need to prove, when a plurality of users visited storage system simultaneously, configurable many controllers in the described system were used for multithreading and handle access request simultaneously, wherein each controller disposes identical information, and wherein said information comprises the LUN information of host groups information and host groups correspondence.
Controller configuration information is the file of an XML form, configuration file on each controller is the same, multiple information in the configuration information, comprise information such as VG, RAID, when only relating to associative operations such as relevant VG, RAID, profile information on all controllers all needs to become the same synchronously, and the user just can see the same content by the WEB interface from any one controller login like this.For example, 8 controllers are arranged in the storage system, be numbered 1～8 respectively, after the user is being numbered the operation that 1 controller carried out deletion LV, and after operating successfully, being numbered 1 controller can in time be synchronized on other 7 controllers by the configuration file of profile module with this locality, to guarantee that the configuration information on every controller is consistent, no matter the user is from that controller login like this, and the information of seeing from the WEB administration interface just can be consistent.Can also realize the globalize of LV in addition by configuration file.
Corresponding, the invention provides a kind of as above device of way access storage resources that in storage system, adopts, as shown in Figure 4, comprising:
Acquisition module 401, employed all accord type when being used for obtaining the described storage resources of described storage system visit;
Configuration module 402 is used to dispose the parsing module that is used to resolve described all accord type;
Employed all accord type when wherein said acquisition module 401 specifically is used in the following way determining described storage system accessing storage resources, comprise: if having main frame that network interface card is installed in the described storage system, the employed protocol type of accessing storage resources is the ISCSI agreement in the described storage system; If there is main frame that the FC card is installed in the described storage system, the employed protocol type of accessing storage resources is the FC agreement in the described storage system; If there is main frame that the IB card is installed in the described storage system, the employed protocol type of accessing storage resources is SRP agreement and ISER agreement in the described storage system.
When employed all accord type comprises in ISCSI agreement, FC card and the SRP agreement at least one during accessing storage resources in described storage system, described configuration module 402 configuration SCST modules; When employed protocol type is ISER during accessing storage resources in described storage system, described configuration module 402 configuration STGT modules.
As shown in Figure 5, described access control module comprises identify unit 501, acquiring unit 502 and access control unit 503.
Wherein said identify unit 501, be used for before providing storage resources for the user, main frame to described user identifies, specifically comprise: if described user inserts the protocol type of storage resources is the FC agreement, with WWNP (world wide port name) number of HBA on the described subscriber's main station (host bus adaptor, Host Bus Adapter) card as host name; If described user inserts the protocol type of storage resources for adopting SRP agreement and/or ISER agreement, with the IP address of IB card on the described subscriber's main station as host name, if it is the ISCSI agreement that described user inserts the protocol type of storage resources, with the node name that shows on the local management software as host name.
After host identification is finished, described acquiring unit 502 is used to obtain the access strategy that described user inserts the protocol type correspondence of storage resources, and wherein said access strategy comprises the user is carried out authentication, adds to LV among the Handler and deletes following at least a of default LUN.
After described acquiring unit 502 obtained access strategy, described access control unit 503 adopted described access strategy to provide storage resources for described user.
In actual applications, this device can be integrated on the controller and move, also can be separately as an equipment operation.
One of ordinary skill in the art will appreciate that all or part of step that realizes the foregoing description is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, this program comprises one of step or its combination of method embodiment when carrying out.
In addition, each functional unit in each embodiment of the present invention can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If described integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.
The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, 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 method for an accessing storage resources in storage system is characterized in that, comprising:
Employed all accord type when obtaining in the described storage system the described storage resources of visit;
Configuration is used to resolve the parsing module of described all accord type;
When the user initiates to visit the request of described storage resources in the described storage system, adopt described parsing module to resolve the protocol type that described user uses, for described user provides described storage resources.
2. method according to claim 1 is characterized in that,
In the described storage system during the described storage resources of visit employed all accord type be to determine in the following way, comprising:
If have main frame that network interface card is installed in the described storage system, the employed protocol type of the described storage resources of visit is Internet Small Computer Systems Interface (ISCSI) agreement in the described storage system;
If there is main frame that optical-fibre channel (FC) card is installed in the described storage system, the employed protocol type of the described storage resources of visit is the FC agreement in the described storage system;
If there is main frame that the IB card is installed in the described storage system, visit described storage resources employed protocol type is safety long-distance password (SRP) agreement and to ISCSI expansion (ISER) agreement of RDMA in the described storage system.
3. method according to claim 2 is characterized in that,
If in the described storage system during the described storage resources of visit employed all accord type comprise in ISCSI agreement, FC card and the SRP agreement at least one, the parsing module of configuration is the SCST module;
If in the described storage system during the described storage resources of visit employed protocol type be the ISER agreement, the parsing module of configuration is the STGT module.
4. method according to claim 3 is characterized in that, and is described for described user provides before the described storage resources, also comprises:
Main frame to described user identifies, and specifically comprises: if the protocol type that described user uses is the FC agreement, with WWNP number of host bus on the described subscriber's main station adaptive (HBA) card as host name; If the protocol type that described user uses is SRP agreement and/or ISER agreement, with the IP address of IB card on the described subscriber's main station as host name; If the protocol type that described user uses is the ISCSI agreement, with the node name that shows on the local management software as host name.
5. according to the arbitrary described method of claim 1 to 4, it is characterized in that, describedly comprise for described user provides described storage resources:
Obtain the access strategy of the protocol type correspondence that described user uses, wherein said access strategy comprises following at least a: the user is carried out authentication, adds to logical volume in the virtual disk and deletes default LUN;
Adopt described access strategy to provide described storage resources for described user.
6. the device of an accessing storage resources in storage system is characterized in that, comprising:
Acquisition module, employed all accord type when being used for obtaining the described storage resources of described storage system visit;
Configuration module is used to dispose the parsing module that is used to resolve described all accord type;
Access control module is used for when described storage system user initiates to visit the request of described storage resources, adopts described parsing module to resolve the protocol type that described user uses, for described user provides described storage resources.
7. device according to claim 6 is characterized in that,
Employed all accord type when described acquisition module specifically is used in the following way determining described storage system accessing storage resources, comprise: if having main frame that network interface card is installed in the described storage system, the employed protocol type of the described storage resources of visit is the ISCSI agreement in the described storage system; If there is main frame that the FC card is installed in the described storage system, the employed protocol type of the described storage resources of visit is the FC agreement in the described storage system; If there is main frame that the IB card is installed in the described storage system, the employed protocol type of the described storage resources of visit is SRP agreement and ISER agreement in the described storage system.
8. device according to claim 7, it is characterized in that, described configuration module specifically is used for: when employed all accord type comprises in ISCSI agreement, FC card and the SRP agreement at least one when described storage system accessing storage resources, and configuration SCST module; When employed protocol type is ISER during accessing storage resources in described storage system, configuration STGT module.
9. device according to claim 8 is characterized in that access control module comprises:
Identify unit was used for before providing storage resources for described user, and described user's main frame is identified, and specifically comprised: if the protocol type that described user uses is the FC agreement, with WWNP number of HBA card on the described subscriber's main station as host name; If the protocol type that described user uses is SRP agreement and/or ISER agreement, with the IP address of IB card on the described subscriber's main station as host name; If the protocol type that described user uses is the ISCSI agreement, with the node name that shows on the local management software as host name.
10. according to the arbitrary described device of claim 6 to 9, it is characterized in that described access control module also comprises:
Acquiring unit is used to obtain the access strategy of the protocol type correspondence that described user uses, and wherein said access strategy comprises following at least a: the user is carried out authentication, adds to logical volume in the virtual disk and deletes default LUN;
Access control unit is used to adopt described access strategy to provide described storage resources for described user.
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| CN105812468A (en) * | 2016-03-15 | 2016-07-27 | 山东超越数控电子有限公司 | High-availability storage method based on SCST |
| CN106155948A (en) * | 2015-04-16 | 2016-11-23 | 伊姆西公司 | For storing the method for system, aggregation configuration engine, aggregation configuration instrument and file system |
| CN106227470A (en) * | 2016-08-05 | 2016-12-14 | 浪潮(北京)电子信息产业有限公司 | A kind of SRM method and device |
| CN107315542A (en) * | 2017-06-29 | 2017-11-03 | 郑州云海信息技术有限公司 | A kind of JBOD cascade systems |
| CN109085996A (en) * | 2017-06-14 | 2018-12-25 | 中国移动通信集团重庆有限公司 | Method, apparatus, system and the storage medium of elastomer block storing data |
| CN109672714A (en) * | 2017-10-17 | 2019-04-23 | 中移(苏州)软件技术有限公司 | A kind of data processing method and distributed memory system of distributed memory system |
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