CN101808123B - 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
The storage system user adopts single agreement to carry out resource access in the prior art, such 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 is different, if adopting still, single-protocol carries out the access of storage resources, for example, storage system uses the FC agreement to conduct interviews, and when network environment uses the user of other protocol types to access described this storage system, wants to access the storage system of using the FC agreement such 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 user's accessing storage resources provides personal needs, certain customers can't access access way as the problem of 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:
Obtain employed all accord type when accessing described storage resources in the described storage system;
Configuration is used for resolving the parsing module of described all accord type;
When the user initiates to access 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 features:
Employed all accord type is determined in the following way when accessing described storage resources in the described storage system, 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 access 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 access 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, access 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 features:
If employed all accord type comprises in ISCSI agreement, FC card and the SRP agreement at least one when accessing described storage resources in the described storage system, the parsing module of configuration is the SCST module;
If employed protocol type is the ISER agreement when accessing described storage resources in the described storage system, the parsing module of configuration is the STGT module.
Further, described method also has following features: 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 features: describedly comprise for described user provides described storage resources:
Obtain access strategy corresponding to protocol type 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 access;
Configuration module is used for the parsing module that configuration is used for resolving described all accord type;
Access control module is used for when described storage system user initiates to access 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 features:
Employed all accord type when described acquisition module specifically is used for determining described storage system accessing storage resources in the following way, 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 access 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 access 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 access is SRP agreement and ISER agreement in the described storage system.
Further, described method also has following features:
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 features: 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 features: described access control module also comprises:
Acquiring unit is used for obtaining access strategy corresponding to protocol type 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 for adopting described access strategy to provide described storage resources for described user.
Technical scheme provided by the invention, obtain employed all accord type when accessing described storage resources in the described storage system, configuration is used for resolving the parsing module of described all accord type, when the user initiates to access the request of described storage resources in the described storage system, adopt described parsing module that the protocol type that described user accesses 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 user's accessing storage resources provides personal needs, solved that certain customers can't access 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 be among the present invention in storage system the embodiment of the method schematic flow sheet of accessing storage resources;
Fig. 3 is the schematic flow sheet of the embodiment of the method for middle step 203 embodiment illustrated in fig. 2;
Fig. 4 be 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.
The below is explained respectively the modules in the described system:
Interface management module 101 is used to the main frame of access storage system that human-computer interaction interface is provided, wherein this human-computer interaction interface provides the access mode of multi-protocols, comprise ISCSI (Internet Small Computer Systems Interface (Internet Small Computer System Interface,), FC (Fibre Channel, optical-fibre channel), SRP (Secure Remote Password safety long-distance password) and ISER (iSCSIExtensions for RDMA is for the ISCSI expansion of RDMA);
Protocol analysis module 102 is used for when receiving host access request, the communication protocol of selecting when resolving host access;
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 access storage system to host groups;
SRM module 104 is used to storage resources corresponding to each host groups configuration.
Before the access of introducing described system management storage resources, at first the foundation of storage resources in the described storage system described:
Create Raid by the volume management instrument, and create VG (Volume Group volume group) at Raid, then create a plurality of LV (Logical Volume, logical volume) at VG.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 LV to the mapping of LUN, is host groups corresponding to LUN configuration.Wherein different LV is mapped to LUN and adds in the different host groups, and be numbered for the LUN that adds, the All hosts in the host groups all can be accessed LUN all in this host groups, but can't access 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 in other situations.
Optionally, after VG creates 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 user to the operation of LV, comprises deletion, mapping etc.Log in the WEB administration interface from different controllers, all can see all LV that bottom creates.
The process of user's accessing 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 commonly use in the described storage system namely 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 then install and just can use.
Wherein step 203 specifically comprises the steps 301～306, as shown in Figure 3:
Concrete, employed protocol type was specifically in the following way when the user was known the local IP access storage resources: WEB administration interface in described storage system, pre-stored 4 kinds of access interface that protocol type is corresponding.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 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 user to the selection of access way, and wherein the access way of user selection can be for one or more.
Wherein the method for identification communication agreement all is applicable to the present invention in the prior art, repeats no more herein.
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.
Wherein this host groups can be divided according to agreement, is the main frame that adopts the ISCSI agreement to conduct interviews such as the main frame in the first host groups, and the main frame in the second host groups is the main frame that adopts the FC agreement to conduct interviews, 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 accessed the storage resources identical with this group protocol type, prevents that host groups from accessing the storage resources of other host groups and causing information leakage.
Further, can also set up a plurality of different main frame subgroups under the main frame of protocol type of the same race, LUN in these several main frame subgroups also is mutually isolation, namely with main frame subgroup 1 binding main frame can only access LUN in this main frame subgroup 1, and can not access LUN in the main frame subgroup 2, although 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 needing increases this main frame again for this main frame creates corresponding host groups in the new host groups that creates.When wherein in host groups, adding main frame, according to the purpose protocol type, the mode of following sign main frame is arranged, comprising:
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, such as the initiator node that records 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, such 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.
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, be that the interior main frame of each host groups can only be accessed storage resources corresponding to this host groups, can not access the storage resources of other host groups, thereby guarantee the access security of storage resources.
Wherein, if the protocol type that access way adopts 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 to be added among the Vdisk (virtual disk); The ISER agreement does not then need.
Optionally, the user can also in the accessing storage resources process, according to the actual needs, delete one or more host groups that do not comprise main frame dynamically; 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 from 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 only having 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 accessed storage system simultaneously, configurable many controllers in the described system were used for multithreading and process simultaneously access request, wherein each controller disposes identical information, and wherein said information comprises host groups information and LUN information corresponding to host groups.
Controller configuration information is the file of an XML form, configuration file on each controller is the same, much information in the configuration information, comprise the information such as VG, RAID, when only relating to the associative operations such as relevant VG, RAID, profile information on all controllers all needs to become synchronously the same, 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 respectively 1～8, 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 by configuration file in addition the globalize of LV.
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 access;
Configuration module 402 is used for the parsing module that configuration is used for resolving described all accord type;
Employed all accord type when wherein said acquisition module 401 specifically is used for determining described storage system accessing storage resources in the following way, 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: be the FC agreement if described user accesses the protocol type of storage resources, 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 accesses 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 accesses 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 for obtaining access strategy corresponding to protocol type that described user accesses 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 above-described embodiment is to come the relevant hardware of instruction to finish by program, described program can be stored in a kind of computer-readable recording medium, this program comprises step of embodiment of the method one or a combination set of 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 read-only memory, disk or CD etc.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, 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 (8)
1. the method for an accessing storage resources in storage system is characterized in that, comprising:
Obtain employed all accord type when accessing described storage resources in the described storage system;
Configuration is used for resolving the parsing module of described all accord type, wherein:
If employed all accord type comprises in ISCSI agreement, FC card and the SRP agreement at least one when accessing described storage resources in the described storage system, the parsing module of configuration is Linux general small-size computer system interface scsi target device intermediate layer SCST module;
If employed protocol type is the ISER agreement when accessing described storage resources in the described storage system, the parsing module of configuration is Linux scsi target device framework STGT module;
When the user initiates to access 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,
Employed all accord type is determined in the following way when accessing described storage resources in the described storage system, 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 access is Internet Small Computer Systems Interface ISCSI agreement in the described storage system;
If there is main frame that the Fibre Channel card is installed in the described storage system, the employed protocol type of the described storage resources of access 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, access described storage resources employed protocol type is safety long-distance password SRP agreement and to the ISCSI expansion ISER agreement of RDMA in the described storage system.
3. method according to claim 1 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, claim WWNP number as host name with the worldwide port name of the adaptive HBA card of host bus on the described subscriber's main station; 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.
4. according to claim 1 to 3 arbitrary described methods, it is characterized in that, describedly comprise for described user provides described storage resources:
Obtain access strategy corresponding to protocol type 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.
5. 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 access;
Configuration module, be used for the parsing module that configuration is used for resolving described all accord type, comprise: 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, configuration SCST module; When employed protocol type is ISER during accessing storage resources in described storage system, configuration STGT module;
Access control module is used for when described storage system user initiates to access 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.
6. device according to claim 5 is characterized in that,
Employed all accord type when described acquisition module specifically is used for determining described storage system accessing storage resources in the following way, 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 access 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 access 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 access is SRP agreement and ISER agreement in the described storage system.
7. device according to claim 5 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.
8. according to claim 5 to 7 arbitrary described devices, it is characterized in that described access control module also comprises:
Acquiring unit is used for obtaining access strategy corresponding to protocol type 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 for adopting described access strategy to provide described storage resources for described user.
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| CN103617130A (en) * | 2013-11-15 | 2014-03-05 | 浪潮(北京)电子信息产业有限公司 | Multiple-protocol-supportive storage virtualization system |
| CN103942097B (en) * | 2014-04-10 | 2017-11-24 | 华为技术有限公司 | A kind of data processing method, device and the computer for possessing related device |
| CN106155948B (en) * | 2015-04-16 | 2019-07-05 | 伊姆西公司 | For the method for storage system, aggregation configuration engine, aggregation configuration tool and file system |
| 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 |
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| 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 |
| CN107315542B (en) * | 2017-06-29 | 2020-11-20 | 苏州浪潮智能科技有限公司 | JBOD cascade system |
| CN109672714B (en) * | 2017-10-17 | 2022-02-25 | 中移(苏州)软件技术有限公司 | Data processing method of distributed storage system and distributed storage system |
| CN111399771B (en) * | 2020-02-28 | 2023-01-10 | 苏州浪潮智能科技有限公司 | Protocol configuration method, device and equipment of MCS storage system |
| CN112540872B (en) * | 2020-11-26 | 2022-04-01 | 华云数据控股集团有限公司 | Universal continuous data protection method and device and electronic equipment |
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