CN107577431A - A kind of storage pool construction method and device - Google Patents
A kind of storage pool construction method and device Download PDFInfo
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- CN107577431A CN107577431A CN201710800686.6A CN201710800686A CN107577431A CN 107577431 A CN107577431 A CN 107577431A CN 201710800686 A CN201710800686 A CN 201710800686A CN 107577431 A CN107577431 A CN 107577431A
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Abstract
The invention discloses a kind of storage pool construction method, comprise the following steps：Memory space based on MDisk or RAID is divided into several growth data blocks by storage system, forms source pond；Growth data block of the storage system based on source pond forms the subpool that one or more capacity are not more than source tankage；Storage system is rejected the MDisk, storage system migrates residual capacity into subpool capacity when source pond residual capacity is more than some MDisk capacity of source pond.The effect of key is played in data protection during the present invention is protected and rolled up to system data, can protect the normal access of the data and volume in new storage pool；Operation implementation is simple and convenient, facilitates guest operation easy.
Description
Technical field
The present invention relates to technical field of memory, especially a kind of storage pool construction method and device.
Background technology
Existing storage system pond is mostly based on Mdisk or RAID to carry out pond, and MDisk is to come from storage inside
The array (RAID) of device, or the volume from external storage system.MDisk is invisible to host computer system.MDisk may be by multiple
Physical disk is formed, and these physical disks can be shown in the form of single logic magnetic disc in storage area network (SAN).
MDisk can provide available physical storage block to system all the time, even if it does not have man-to-man corresponding relation with physical disk.
Found among the test stored, some Mdisk in storage pool can not be rejected artificially, if forcing to pick
Remove, whole storage pool off line will be caused, and the volume created based on storage pool also will be unable to access and loss of data.Therefore it is unfavorable for depositing
The data protection of reservoir, especially for the storage pool of very important data creation, if because some Midsk in pond is present
Risk, whole pond will be caused can not to access corrupted data.So cause the LUN created based on pond, once it is any in pond
Mdisk or RAID off lines will cause the LUN based on this pond by off line, so to bring the drawbacks of very big to storage system.
The content of the invention
It is an object of the invention to provide a kind of storage pool construction method and device, and new storage is established based on existing storage pool
Pond, LUN off lines can not access storage system caused by avoiding MDisk or RAID off line.
To achieve the above object, the present invention uses following technical proposals：
A kind of storage pool construction method, comprises the following steps：
Memory space based on MDisk or RAID is divided into several growth data blocks by storage system, forms source pond；
Growth data block of the storage system based on source pond forms the subpool that one or more capacity are not more than source tankage；
Storage system is rejected the MDisk, storage system when source pond residual capacity is more than some MDisk capacity of source pond
Residual capacity is migrated into subpool capacity.
Further, the memory space based on MDisk or RAID is divided into several growth daties by the storage system
Block, source pond is formed, including：
Memory space based on MDisk or RAID is arrived ending order and is divided into several size phases by storage system from the outset
Same growth data block, and serial number is carried out successively.
Further, the amount of capacity of the growth data block depends on the attribute in the source pond that the MDisk or RAID is added
Set.
Further, growth data block of the storage system based on source pond forms one or more capacity and is not more than source pond
The subpool of capacity, including：
The existing physical capacity used by being fully allocated to source pond creates subpool, the partition capacity of the subpool of foundation
No longer it is reported as the active volume in source pond.
Further, storage system need to first delete the subpool created by source pond, will expand when carrying out deletion action to source pond
Exhibition data block is back to Yuan Chizhong, and the MDisk or RAID in source pond are then back to unmanaged mode.
Further, when storage system removes MDisk from the pond of source, volume that storage system creates subpool uses all
Growth data block is moved in other MDisk in source pond.
Further, when storage system adds MDisk into source pond, the expansion between the balanced multiple MDisk of storage system meeting
Open up data block.
A kind of storage pool construction device, including：Source pond creation module, the MDisk or RAID that form memory space are divided
For multiple growth data blocks, and growth data block is numbered；Reception newly increases MDisk capacity, realizes each growth data
Equilibrium between block；
Subpool creation module, the growth data block based on source pond create the subpool based on source pond；
Capacity transferring module, by source pond residual capacity spatial migration to subpool.
Further, in addition to subpool capacity alarm module, warning level can be reset when subpool capacity reduces, in subpool
Give a warning information during the warning threshold that capacity arrival is set.
The effect provided in the content of the invention is only the effect of embodiment, rather than whole effects that invention is all, above-mentioned
A technical scheme in technical scheme has the following advantages that or beneficial effect：
The effect of key is played in data protection during the present invention is protected and rolled up to system data, can be protected in new storage pool
Data and volume normal access；Operation implementation is simple and convenient, facilitates guest operation easy.
Brief description of the drawings
Fig. 1 is storage pool construction method flow chart of the present invention；
Storage pool construction device schematic diagram of the present invention during Fig. 2.
Embodiment
For the technical characterstic for illustrating this programme can be understood, below by embodiment, and its accompanying drawing is combined, to this hair
It is bright to be described in detail.Following disclosure provides many different embodiments or example is used for realizing the different knots of the present invention
Structure.In order to simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relation between various embodiments are discussed and/or set.It should be noted that part illustrated in the accompanying drawings is not necessarily to scale
Draw.Present invention omits the description to known assemblies and treatment technology and process to avoid being unnecessarily limiting the present invention.
As shown in figure 1, a kind of storage pool construction method, comprises the following steps：
Memory space based on MDisk or RAID is divided into several growth data blocks by S1, storage system, forms source
Pond；
The growth data block of S2, storage system based on source pond forms the son that one or more capacity are not more than source tankage
Pond；
S3, storage system reject the MDisk when source pond residual capacity is more than some MDisk capacity of source pond, storage system
System migrates residual capacity into subpool capacity.
Memory space based on MDisk or RAID is divided into several growth data blocks by storage system, forms source pond, bag
Include：Memory space based on MDisk or RAID is arrived ending order and is divided into several size identicals by storage system from the outset
Growth data block, and serial number is carried out successively.The amount of capacity of growth data block depends on what the MDisk or RAID was added
The attribute in source pond is set.
Growth data block of the storage system based on source pond forms the subpool that one or more capacity are not more than source tankage, bag
Include：The existing physical capacity used by being fully allocated to source pond creates subpool, and the partition capacity of the subpool of foundation is no longer
It is reported as the active volume in source pond.Subpool is built by source pond, and subpool is not created directly by MDisk, but is passed through
Distributed to source pond show have capacity to create.As the pond of source, subpool can create exclusively with distributed to subpool hold
The volume of amount.Subpool is similar with the source pond with like attribute, available for rolling up copy function.Subpool is using the physics being fully allocated
Capacity creates.Subpool capacity is necessarily less than the active volume in source pond.The partition capacity of subpool is no longer reported as Qi Yuan ponds
Active volume.
If deleting source pond, it will be unable to recover existing between growth data block or the growth data block that uses of volume in pond and reflect
Penetrate.If source pond has the subpool of association created by source pond, then it must delete these subpools first, then by its growth data
Block is back to source pond.After deleting subpool, source pond can be deleted.MDisk in the pond of source can be back to unmanaged mode, and can be added to
In other source ponds.
Before MDisk is removed from the pond of source, it is ensured that any subpool associated with source pond all there is enough capacity to be used for
Volume in the subpool.All growth data blocks that volume uses can all be automatically migrated to other MDisk in the pond of source by storage system
In, so that it is guaranteed that data will not lose.MDisk is added in Xiang Yuanchi, to increase the growth data block number that can be used for new volume copy
Or the existing volume copy of extension.Volume growth data block between storage system meeting automatic equalization MDisk, it is optimal so as to be provided to volume
Performance.
As shown in Fig. 2 a kind of storage pool construction device, including：Source pond creation module 101, memory space will be formed
MDisk or RAID is divided into multiple growth data blocks, and growth data block is numbered；Reception newly increases MDisk capacity, real
Equilibrium between existing each growth data block；Subpool creation module 102, the growth data block based on source pond are created based on source pond
Subpool；Capacity transferring module 103, by source pond residual capacity spatial migration to subpool.Subpool capacity alarm module 104, in subpool
Capacity can reset warning level when reducing, and give a warning information when subpool capacity reaches the warning threshold set.Storage system
The reservation growth data block in the father pond of multiple growth data blocks is used.Storage system can also reset warning when subpool reduces
Rank, and given a warning when reaching the rank during capacity reduces.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.
Claims (9)
1. a kind of storage pool construction method, it is characterized in that, comprise the following steps：
Memory space based on MDisk or RAID is divided into several growth data blocks by storage system, forms source pond；
Growth data block of the storage system based on source pond forms the subpool that one or more capacity are not more than source tankage；
Storage system rejects the MDisk when source pond residual capacity is more than some MDisk capacity of source pond, and storage system will be surplus
Covolume amount is migrated into subpool capacity.
2. a kind of storage pool construction method as claimed in claim 1, it is characterized in that, the storage system will be based on MDisk or
RAID memory space is divided into several growth data blocks, forms source pond, including：
Memory space based on MDisk or RAID is arrived ending order and is divided into several size identicals by storage system from the outset
Growth data block, and serial number is carried out successively.
3. a kind of storage pool construction method as claimed in claim 2, it is characterized in that, the amount of capacity of the growth data block takes
Certainly the attribute in the source pond that the MDisk or RAID is added is set.
4. a kind of storage pool construction method as claimed in claim 1, it is characterized in that, extension of the storage system based on source pond
Data block forms the subpool that one or more capacity are not more than source tankage, including：
The existing physical capacity used by being fully allocated to source pond creates subpool, and the partition capacity of the subpool of foundation is no longer
It is reported as the active volume in source pond.
5. a kind of storage pool construction method as claimed in claim 1, it is characterized in that, storage system is carrying out deletion behaviour to source pond
When making, the subpool created by source pond need to be first deleted, growth data block is back to Yuan Chizhong, the MDisk or RAID in source pond are then returned
It is back to unmanaged mode.
6. a kind of storage pool construction method as claimed in claim 1, it is characterized in that, storage system removes MDisk from the pond of source
When, all growth data blocks that volume that storage system creates subpool uses are moved in other MDisk in source pond.
7. a kind of storage pool construction method as claimed in claim 1, it is characterized in that, storage system adds MDisk into source pond
When, storage system understands the growth data block between balanced multiple MDisk.
8. a kind of storage pool construction device, using a kind of storage pool construction method described in claim 1 to 7, it is characterized in that, bag
Include：Source pond creation module, the MDisk or RAID that form memory space are divided into multiple growth data blocks, and to growth data
Block is numbered；Reception newly increases MDisk capacity, realizes the equilibrium between each growth data block；
Subpool creation module, the growth data block based on source pond create the subpool based on source pond；
Capacity transferring module, by source pond residual capacity spatial migration to subpool.
9. a kind of storage pool construction device as claimed in claim 8, it is characterized in that, in addition to subpool capacity alarm module,
Subpool capacity can reset warning level when reducing, and give a warning information when subpool capacity reaches the warning threshold set.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109062748A (en) * | 2018-08-10 | 2018-12-21 | 郑州云海信息技术有限公司 | A kind of automatic test approach and device of mirror image volume specification function |
| CN109189583A (en) * | 2018-09-20 | 2019-01-11 | 郑州云海信息技术有限公司 | A kind of distributed lock implementation method and device |
| WO2021044250A1 (en) * | 2019-09-06 | 2021-03-11 | International Business Machines Corporation | Converting large extent storage pools into small extent storage pools in place |
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| CN103365781A (en) * | 2012-03-29 | 2013-10-23 | 国际商业机器公司 | Method and device for dynamically reconfiguring storage system |
| CN106020715A (en) * | 2015-03-31 | 2016-10-12 | 国际商业机器公司 | Storage pool capacity management |
| US20170242610A1 (en) * | 2016-02-23 | 2017-08-24 | International Business Machines Corporation | Determining maximum volume size |
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| CN1955912A (en) * | 2006-10-13 | 2007-05-02 | 清华大学 | Method for distributing resource in large scale storage system |
| CN103365781A (en) * | 2012-03-29 | 2013-10-23 | 国际商业机器公司 | Method and device for dynamically reconfiguring storage system |
| CN106020715A (en) * | 2015-03-31 | 2016-10-12 | 国际商业机器公司 | Storage pool capacity management |
| US20170242610A1 (en) * | 2016-02-23 | 2017-08-24 | International Business Machines Corporation | Determining maximum volume size |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109062748A (en) * | 2018-08-10 | 2018-12-21 | 郑州云海信息技术有限公司 | A kind of automatic test approach and device of mirror image volume specification function |
| CN109189583A (en) * | 2018-09-20 | 2019-01-11 | 郑州云海信息技术有限公司 | A kind of distributed lock implementation method and device |
| CN109189583B (en) * | 2018-09-20 | 2021-10-01 | 郑州云海信息技术有限公司 | Distributed lock implementation method and device |
| WO2021044250A1 (en) * | 2019-09-06 | 2021-03-11 | International Business Machines Corporation | Converting large extent storage pools into small extent storage pools in place |
| CN114341794A (en) * | 2019-09-06 | 2022-04-12 | 国际商业机器公司 | Converting large extent storage pools to small extent storage pools as appropriate |
| GB2603326A (en) * | 2019-09-06 | 2022-08-03 | Ibm | Converting large extent storage pools into small extent storage pools in place |
| GB2603326B (en) * | 2019-09-06 | 2023-02-08 | Ibm | Converting large extent storage pools into small extent storage pools in place |
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Application publication date: 20180112 |