CN106325777A - Logical unit management method and system - Google Patents
Logical unit management method and system Download PDFInfo
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- CN106325777A CN106325777A CN201610721150.0A CN201610721150A CN106325777A CN 106325777 A CN106325777 A CN 106325777A CN 201610721150 A CN201610721150 A CN 201610721150A CN 106325777 A CN106325777 A CN 106325777A
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- 238000007726 management method Methods 0.000 title claims abstract description 131
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000013507 mapping Methods 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims description 5
- 238000012217 deletion Methods 0.000 description 6
- 230000037430 deletion Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0604—Improving or facilitating administration, e.g. storage management
- G06F3/0605—Improving or facilitating administration, e.g. storage management by facilitating the interaction with a user or administrator
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0662—Virtualisation aspects
- G06F3/0665—Virtualisation aspects at area level, e.g. provisioning of virtual or logical volumes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention discloses a logical unit management method. The method comprises the following steps: creating a host cluster comprising N hosts; creating storage systems corresponding to the hosts to obtain a corresponding storage system cluster; mapping all logical units in the storage systems into corresponding MDisk management disks respectively; acquiring a logical unit management instruction sent by a target host, and managing the logical units in the MDisk management disks corresponding to the target host according to the logical unit management instruction. In the method, corresponding logical units in the MDisk management disks corresponding to a certain host are managed when the certain host needs to manage the logical units in corresponding storage systems, so that effective management of the logical units can be realized. Moreover, the invention also correspondingly discloses a logical unit management system.
Description
Technical Field
The present invention relates to the field of storage technologies, and in particular, to a method and a system for managing a logical unit.
Background
Currently, with the rapid development of computer technology, great progress is made in storage technology, and especially for the successful use of back-end storage system partitions, the requirements of a server on the safety and rapidity of a disk are met.
When configuring a backend storage system, the configuration of an LU (Logical unit) is an important component thereof. In general, there are thousands of logical units in a back-end storage system, and how to effectively manage the logical units is a problem to be solved at present.
Disclosure of Invention
In view of this, the present invention provides a method and a system for managing a logical unit, so as to achieve effective management of the logical unit. The specific scheme is as follows:
a logical unit management method, comprising:
creating a host cluster comprising N hosts, wherein N is a positive integer;
creating a storage system corresponding to each host to obtain a corresponding storage system cluster;
respectively mapping all logic units in each storage system into corresponding MDisk management disks;
acquiring a logic unit management instruction sent by a target host, and managing a logic unit in an MDisk management disk corresponding to the target host according to the logic unit management instruction;
wherein the target host is any one of the N hosts.
Preferably, the N hosts include M sets of host pairs, where M is a positive integer; each group of host computer pairs comprises two host computers, and a corresponding communication link is arranged between the two host computers in each group of host computer pairs.
Preferably, the operating Mode of the MDisk management disk corresponding to each storage system is Image Mode.
Preferably, the operating Mode of the MDisk management disk corresponding to each storage system is Managed Space Mode.
Preferably, the method further comprises:
acquiring an arbitration disk setting instruction sent by the target host;
and setting the MDisk management disk corresponding to the target host as an arbitration disk according to the arbitration disk setting instruction.
Preferably, the process of acquiring a logical unit management instruction sent by a target host and managing a logical unit in an MDisk management disk corresponding to the target host according to the logical unit management instruction includes:
acquiring a logic unit extension instruction sent by the target host;
according to the logic unit expansion instruction, expanding the logic unit in the storage system corresponding to the target host to obtain a newly added logic unit after expansion;
and mapping the newly added logic unit after expansion to the MDisk management disk corresponding to the target host so as to update the MDisk management disk.
The invention also discloses a logic unit management system, which comprises:
the first cluster creating module is used for creating a host cluster comprising N hosts, wherein N is a positive integer;
the second cluster creating module is used for creating the storage system corresponding to each host to obtain a corresponding storage system cluster;
the mapping module is used for respectively mapping all the logic units in each storage system into corresponding MDisk management disks;
the logical unit management module is used for acquiring a logical unit management instruction sent by a target host and managing a logical unit in an MDisk management disk corresponding to the target host according to the logical unit management instruction;
wherein the target host is any one of the N hosts.
Preferably, the operating Mode of the MDisk management disk corresponding to each storage system is Image Mode or ManagedSpace Mode.
Preferably, the system further comprises:
and the arbitration disk setting module is used for acquiring an arbitration disk setting instruction sent by the target host and setting the MDisk management disk corresponding to the target host as an arbitration disk according to the arbitration disk setting instruction.
Preferably, the logical unit management module includes:
the logic unit expansion submodule is used for acquiring a logic unit expansion instruction sent by the target host, and expanding the logic unit in the storage system corresponding to the target host according to the logic unit expansion instruction to obtain a newly added logic unit after expansion;
and the disk updating submodule is used for mapping the expanded newly-added logic unit to the MDisk management disk corresponding to the target host so as to update the MDisk management disk.
In the invention, the logic unit management method comprises the following steps: creating a host cluster comprising N hosts, wherein N is a positive integer; creating a storage system corresponding to each host to obtain a corresponding storage system cluster; respectively mapping all logic units in each storage system into corresponding MDisk management disks; acquiring a logic unit management instruction sent by a target host, and managing a logic unit in an MDisk management disk corresponding to the target host according to the logic unit management instruction; wherein the target host is any one of the N hosts. Therefore, after the host cluster and the corresponding storage system cluster are established, all the logic units in each storage system are mapped into the corresponding MDisk management disks, so that when a certain host needs to manage the logic units in the corresponding storage system, only the corresponding logic units in the MDisk management disks corresponding to the host need to be managed, and the effective management of the logic units is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flowchart of a method for managing logical units according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a logical unit management system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a logical unit management method, which comprises the following steps as shown in figure 1:
step S11: a host cluster is created that includes N hosts, where N is a positive integer.
Step S12: and establishing a storage system corresponding to each host to obtain a corresponding storage system cluster.
It will be appreciated that the storage system cluster described above includes one or more storage systems, each having a host corresponding thereto.
Step S13: and respectively mapping all the logic units in each storage system to corresponding MDisk management disks.
In this embodiment, the hosts, the storage systems, and the MDisk management disks form a corresponding relationship, that is, each host has a storage system corresponding thereto, and each storage system has a MDisk management disk corresponding thereto.
It can be understood that after all the logical units in a certain storage system are mapped to the MDisk management disk, all the mapped logical units are displayed in the obtained MDisk management disk.
Step S14: acquiring a logic unit management instruction sent by a target host, and managing a logic unit in an MDisk management disk corresponding to the target host according to the logic unit management instruction; wherein the target host is any one of the N hosts.
The logic unit management instruction includes various management instructions, such as a logic unit extension instruction or a logic unit deletion instruction.
In this embodiment, after mapping all the logic units in the storage system into the MDisk management disks, the host may manage the corresponding MDisk management disks by sending a logic unit management instruction, that is, manage the logic units in the MDisk management disks correspondingly.
It can be seen that, in the embodiments of the present invention, after the host cluster and the corresponding storage system cluster are created, all the logic units in each storage system are mapped into the corresponding MDisk management disks, so that when a host needs to manage the logic units in the corresponding storage system, only the corresponding logic units in the MDisk management disks corresponding to the host need to be managed, thereby implementing effective management of the logic units.
The embodiment of the invention discloses a specific logical unit management method, and compared with the previous embodiment, the embodiment further explains and optimizes the technical scheme. Specifically, the method comprises the following steps:
in the previous embodiment, in step S11, a host cluster including N hosts is created. In order to improve the stability, reliability and security of the whole storage system cluster, in this embodiment, some or all of the hosts may communicate with each other, specifically, the N hosts may include M groups of host pairs, where M is a positive integer; each group of host computer pairs comprises two host computers, and a corresponding communication link is arranged between the two host computers in each group of host computer pairs. It is understood that the total number of hosts included in the M sets of host pairs is not greater than the value N. And corresponding communication links are arranged between the two hosts in each group of host pairs, namely, the two hosts can communicate through the communication links between the two hosts.
In addition, it should be noted that the operating modes of the MDisk management disk generally include three types, which are unoconfigurable Mode, Image Mode, and Managed Space Mode. Since the MDisk management disk cannot be accessed by the host when operating in the unonfigured Mode, in this embodiment, the operating Mode of the MDisk management disk corresponding to each storage system is Image Mode or Managed Space Mode.
In order to ensure the security of the data in the storage system corresponding to the target host, the method in this embodiment may further include:
and acquiring an arbitration disk setting instruction sent by the target host, and setting the MDisk management disk corresponding to the target host as an arbitration disk according to the arbitration disk setting instruction.
When the logical unit management instruction sent by the target host is the logical unit expansion instruction, in step S14 in the previous embodiment, the process of obtaining the logical unit management instruction sent by the target host and managing the logical unit in the MDisk management disk corresponding to the target host according to the logical unit management instruction specifically includes:
the method comprises the steps of obtaining a logic unit expansion instruction sent by a target host, then expanding a logic unit in a storage system corresponding to the target host according to the logic unit expansion instruction to obtain a newly added logic unit after expansion, and then mapping the newly added logic unit after expansion to a MDisk management disk corresponding to the target host so as to update the MDisk management disk.
Similarly, when the logical unit management instruction sent by the target host is the logical unit deletion instruction, in step S14 in the previous embodiment, the process of obtaining the logical unit management instruction sent by the target host and managing the logical unit in the MDisk management disk corresponding to the target host according to the logical unit management instruction specifically includes:
and acquiring a logic unit deleting instruction sent by the target host, and then correspondingly deleting the logic unit in the MDisk management disk corresponding to the target host according to the logic unit deleting instruction.
Correspondingly, the embodiment of the present invention further discloses a logical unit management system, as shown in fig. 2, the logical unit management system includes:
a first cluster creating module 21, configured to create a host cluster including N hosts, where N is a positive integer;
a second cluster creating module 22, configured to create a storage system corresponding to each host, so as to obtain a corresponding storage system cluster;
a mapping module 23, configured to map all the logic units in each storage system to corresponding MDisk management disks;
the logical unit management module 24 is configured to acquire a logical unit management instruction sent by the target host, and manage a logical unit in the MDisk management disk corresponding to the target host according to the logical unit management instruction; wherein the target host is any one of the N hosts.
It can be seen that, in the embodiments of the present invention, after the host cluster and the corresponding storage system cluster are created, all the logic units in each storage system are mapped into the corresponding MDisk management disks, so that when a host needs to manage the logic units in the corresponding storage system, only the corresponding logic units in the MDisk management disks corresponding to the host need to be managed, thereby implementing effective management of the logic units.
Specifically, in this embodiment, the working Mode of the MDisk management disk corresponding to each storage system is ImageMode or Managed Space Mode.
Further, in order to improve the security of data in the storage system corresponding to the target host, the logical unit management system in this embodiment may further include:
and the arbitration disk setting module is used for acquiring an arbitration disk setting instruction sent by the target host and setting the MDisk management disk corresponding to the target host as the arbitration disk according to the arbitration disk setting instruction.
In addition, when the logical unit management instruction sent by the target host is a logical unit expansion instruction, the logical unit management module may specifically include a logical unit expansion submodule and a disk update submodule; wherein,
the logic unit expansion submodule is used for acquiring a logic unit expansion instruction sent by the target host, and expanding the logic unit in the storage system corresponding to the target host according to the logic unit expansion instruction to obtain a newly added logic unit after expansion;
and the disk updating submodule is used for mapping the newly added logic unit after expansion to the MDisk management disk corresponding to the target host so as to update the MDisk management disk.
In this embodiment, when the logical unit management instruction sent by the target host is a logical unit deletion instruction, the logical unit management module is specifically configured to obtain the logical unit deletion instruction sent by the target host, and then perform corresponding deletion processing on the logical unit in the MDisk management disk corresponding to the target host according to the logical unit deletion instruction.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The logic unit management method and system provided by the present invention are introduced in detail, and a specific example is applied in the text to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A logical unit management method, comprising:
creating a host cluster comprising N hosts, wherein N is a positive integer;
creating a storage system corresponding to each host to obtain a corresponding storage system cluster;
respectively mapping all logic units in each storage system into corresponding MDisk management disks;
acquiring a logic unit management instruction sent by a target host, and managing a logic unit in an MDisk management disk corresponding to the target host according to the logic unit management instruction;
wherein the target host is any one of the N hosts.
2. The logical unit management method according to claim 1, wherein the N hosts include M groups of host pairs, M being a positive integer; each group of host computer pairs comprises two host computers, and a corresponding communication link is arranged between the two host computers in each group of host computer pairs.
3. The logical unit management method according to claim 1, wherein an operating Mode of the MDisk management disk corresponding to each storage system is Image Mode.
4. The logical unit management method according to claim 1, wherein an operating Mode of the MDisk management disk corresponding to each storage system is Managed Space Mode.
5. The logical unit management method according to any one of claims 1 to 4, further comprising:
acquiring an arbitration disk setting instruction sent by the target host;
and setting the MDisk management disk corresponding to the target host as an arbitration disk according to the arbitration disk setting instruction.
6. The logical unit management method according to any one of claims 1 to 4, wherein the process of acquiring the logical unit management instruction sent by the target host and managing the logical unit in the MDisk management disk corresponding to the target host according to the logical unit management instruction includes:
acquiring a logic unit extension instruction sent by the target host;
according to the logic unit expansion instruction, expanding the logic unit in the storage system corresponding to the target host to obtain a newly added logic unit after expansion;
and mapping the newly added logic unit after expansion to the MDisk management disk corresponding to the target host so as to update the MDisk management disk.
7. A logical unit management system, comprising:
the first cluster creating module is used for creating a host cluster comprising N hosts, wherein N is a positive integer;
the second cluster creating module is used for creating the storage system corresponding to each host to obtain a corresponding storage system cluster;
the mapping module is used for respectively mapping all the logic units in each storage system into corresponding MDisk management disks;
the logical unit management module is used for acquiring a logical unit management instruction sent by a target host and managing a logical unit in an MDisk management disk corresponding to the target host according to the logical unit management instruction;
wherein the target host is any one of the N hosts.
8. The LUM management system of claim 7, wherein the operating Mode of the MDisk management disk corresponding to each storage system is Image Mode or Managed Space Mode.
9. The logical unit management system according to claim 7 or 8, further comprising:
and the arbitration disk setting module is used for acquiring an arbitration disk setting instruction sent by the target host and setting the MDisk management disk corresponding to the target host as an arbitration disk according to the arbitration disk setting instruction.
10. The logical unit management system according to claim 7 or 8, wherein the logical unit management module comprises:
the logic unit expansion submodule is used for acquiring a logic unit expansion instruction sent by the target host, and expanding the logic unit in the storage system corresponding to the target host according to the logic unit expansion instruction to obtain a newly added logic unit after expansion;
and the disk updating submodule is used for mapping the expanded newly-added logic unit to the MDisk management disk corresponding to the target host so as to update the MDisk management disk.
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