CN101510145B - Storage system management method and apparatus - Google Patents
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Abstract
The invention discloses a management method and device of a storage system; the method comprises the steps of storing the property information of redundant array of inexpensive discs (RAID) of different types; selecting discs from the storage system to compose an array, and respectively creating logical storage resources for different application servers on the array; for each logical storage resource, allocating the logical storage resource to the corresponding application server and obtaining the read-write property of the corresponding application server to the logical storage resource; selecting one RAID type according to the obtained read-write property and the property information of the stored RAID of different types; and taking the selected RAID type as the RAID type of the logical storage resources. The technical proposal of the invention leads the RAID in the storage system to be capable of providing better performance service for the application servers.
Description
Technical field
The present invention relates to the memory system technologies field, refer to a kind of storage system management method and device especially.
Background technology
Redundant Array of Inexpensive Disc (RAID, Redundant Array of Inexpensive Disks) technology is the technology that the hard disk the most widely of employing at present promotes memory property and data security.Say that simply the RAID technology is exactly to utilize the combination of a plurality of hard disks to be linked to be an array, realize reading and writing data in magnetic disk, improve data write speed and security thereby reach in quick, accurate and safe mode.The major function of RAID is to improve the availability and the memory capacity of network data, and data are distributed on a plurality of disks selectively, thereby improves the data throughout of total system.
What the data organization mode of RAID adopted is subregion, piecemeal and band.Wherein, subregion is a storage block that the address on the disk is continuous, and a disk can be divided into a plurality of subregions, and the size of each subregion can not wait, and is also referred to as logic magnetic disc sometimes; A branch is distinguished into a plurality of equal and opposite in directions, the adjacent piece in address, and these pieces are called piecemeal, and piecemeal is the element of band, and logic magnetic disc is the address that unit arrives the map addresses of logic magnetic disc member's disk with the piecemeal; Band is the set of the relevant piecemeal in the position on the different subregions, is the unit that organizes the piecemeal on the different subregions.
The redundancy of RAID is divided into the redundant and verification redundancy of mirror image.Wherein, the mirror image redundancy is a simple device virtualization technology, each read-write operation all can be carried out on two disks, and it is the same that two disks look like a disk, makees a copy (being mirror image) in addition and is stored on another disk writing on the data on the disk.When mirror image data is carried out read operation, can from two disks, read simultaneously, read performance, but when carrying out write operation, write simultaneously in two disks, so write performance descend thereby improved.The verification redundancy is to use checking algorithm that the data on the same band are carried out verification, proof test value is write disk, when certain data block in the band is damaged, by other data blocks and the proof test value of same band, again calculate impaired data, thereby reach redundant effect.
At present, the array type of main RAID has JBOD, RAID0, RAID1, RAID5, RAID10 etc.Redundancy difference between the various RAID types, performance also there are differences, and operating factor of memory space is also different, therefore for the business of different read write attributes, needs to use the RAID of different types to reach optimization in Properties.Table 1 is the comparison of various types of RAID:
| Type | RAID0 | RAID1 | RAID10 | RAID5 |
| Disk is counted requirement | Greater than 2 | 2 | Even number greater than 4 | Greater than 3 |
| Data protection | Do not have | Allow a disk failures in each RAID1 array | Allow a disk failures in each RAID10 subarray | Allow 1 disk failures |
| Read performance | Very high | Very high | High | High |
| Type | RAID0 | RAID1 | RAID10 | RAID5 |
| Write performance | Very high | Medium | Medium | Medium |
| Degradation is read performance | Do not have | Medium | High | Low |
| The degradation write performance | Do not have | Medium | High | Low |
| Space availability ratio | 100％ | 50％ | 50％ | 67％-94％ |
| Remarks | RAID0 does not provide redundancy feature, but it but provides remarkable throughput performance | Performance does not improve, and descends to some extent | Do mirror image earlier and do striping then, both improved the readwrite performance of system, the data redundancy protection is provided again | Raid10 and raid5 are suitable in the read operation, but on write performance, especially small letter (block size is less as 1KB) performance is poorer than raid10 |
Table 1
At present, the step of the storage resources of application server access storage system is as follows in the existing scheme:
Step 1 is selected disk, selected RAID type, and according to selected RAID type establishment array;
Step 2 is created logical storage resources on array, and the logical storage resources of being created is distributed to different application servers;
Here, logical storage resources is made up of band, and as LUN of the prior art etc., the logical storage resources that it is assigned to for application server is exactly its hard disk, and also having only its logical storage resources that is assigned to is as seen exercisable to this application server.
Step 3, the logical storage resources that application server access distributed is read and write it.
As seen in the existing scheme, before creating logical storage resources, must create RAID, on RAID, create then corresponding to different application server logical storage resources.Yet different application servers is to the requirement difference of storage, as performance requirement very big difference is just arranged to reliability, in addition, because the difference of the read write attribute of miscellaneous service, also there is very big difference in the performance performance of running different business on the Different Logic storage resources of the RAID of same type.
Therefore, the RAID in the existing storage system can not provide the preferable performance service for application server.
Summary of the invention
The invention provides a kind of storage system management method, this method makes the RAID in the storage system to provide the preferable performance service for application server.
The present invention also provides a kind of system management memory device, and this device makes the RAID in the storage system to provide the preferable performance service for application server.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
The invention discloses a kind of storage system management method, this method comprises:
Preserve the characteristic information of dissimilar Redundant Array of Inexpensive Disc RAID;
In storage system, select disk to form array, and on array, create logical storage resources respectively for different application servers;
For each logical storage resources, this logical storage resources is distributed to corresponding application server, obtain the read write attribute of corresponding application server to this logical storage resources, characteristic information according to the dissimilar RAID of read write attribute that is obtained and described preservation is selected a RAID type, and with the RAID type of selected RAID type as this logical storage resources.
The invention also discloses a kind of system management memory device, this device comprises: memory module, administration module and specificity analysis module, wherein,
Memory module is used to preserve the characteristic information of dissimilar Redundant Array of Inexpensive Disc RAID;
Administration module is used for selecting disk to form array in storage system, and creates logical storage resources respectively for different application servers on array; For each logical storage resources, this logical storage resources is distributed to corresponding application server, the RAID type that the receiving feature analysis module sends corresponding to this logical storage resources, and with the RAID type of this RAID type that receives as this logical storage resources;
The specificity analysis module, be used for each logical storage resources, obtain the read write attribute of corresponding application server, and select a RAID type for this logical storage resources according to the characteristic information of the dissimilar RAID in read write attribute that is obtained and the memory module to this logical storage resources; And be used for and send to administration module for the selected RAID type of each logical storage resources.
As seen from the above technical solution, the characteristic information of the dissimilar Redundant Array of Inexpensive Disc RAID of this preservation of the present invention, in storage system, select disk to form array, and on array, create logical storage resources respectively for different application servers, for each logical storage resources, this logical storage resources is distributed to corresponding application server, obtain the read write attribute of corresponding application server to this logical storage resources, characteristic information according to the dissimilar RAID of read write attribute that is obtained and described preservation is selected a RAID type, and makes the RAID in the storage system to provide the preferable performance service for application server as the technical scheme of the RAID type of this logical storage resources selected RAID type.
Description of drawings
Fig. 1 is the process flow diagram of a kind of storage system management method of the embodiment of the invention;
Fig. 2 is the synoptic diagram of an initialized disk array in the embodiment of the invention;
Fig. 3 is a kind of schematic layout pattern of the logical storage resources in the embodiment of the invention;
Fig. 4 is the process flow diagram of having specified the logical storage resources change RAID type of RAID type in the embodiment of the invention;
Fig. 5 is the synoptic diagram before the logical storage resources A conversion RAID type in the embodiment of the invention;
Fig. 6 is the synoptic diagram after the logical storage resources A conversion RAID type in the embodiment of the invention;
Fig. 7 is second process flow diagram of having specified the logical storage resources change RAID type of RAID type in the embodiment of the invention;
Fig. 8 is the composition structured flowchart of a kind of system management memory device of the embodiment of the invention.
Embodiment
Fig. 1 is the process flow diagram of a kind of storage system management method of the embodiment of the invention.As shown in Figure 1, this method may further comprise the steps:
In this step, the characteristic information of RAID can comprise: the disk number that the read write attribute of RAID, the space loss of RAID, RAID are included and the relation of array performance etc.For example aforesaid table 1 promptly can be as the characteristic information table of dissimilar RAID in the embodiment of the invention.
The characteristic information of dissimilar RAID in this step can be imported storage system by administrator hand, also can be collected automatically by storage system.
In this step, select disk to form an array from storage system, this array is not also specified the RAID type.What can decide according to actual conditions as for selecting a disk to form an array, for example, according to the RAID characteristic information shown in the table 1, because the disk request number of RAID 10 is an even number and can not odd number, therefore select the even number disk to form array in order to take into account RAID 10, if actual conditions are not consider RAID 10 certainly, also can select the odd number disk to form array; Perhaps other conditions that need consider can be as the foundation of the number of disks of determining the composition array in addition.
In this step, can also carry out initialization to all disks of forming array, the sector that is about to form all disks of array all writes 0.
Fig. 2 is the synoptic diagram of an initialized disk array in the embodiment of the invention.In Fig. 2, selected 4 physical disks to form an array.
In this step, after selected disk is formed array, on array, create logical storage resources respectively for the different application server.Here logical storage resources is that logical storage resources is made up of band with the result of the storage space on the array after vertically dividing, as LUN of the prior art etc.At this moment, also logical storage resources is not really distributed to corresponding application server, just carrying out logic planning.
In this step, when creating logical storage resources, can also specify the basic demand of logical storage resources,, behind the array degradation, whether allow to convert to nonredundancy array etc. as whether needing redundancy to storage.
Fig. 3 is a kind of schematic layout pattern of the logical storage resources in the embodiment of the invention.As shown in Figure 3, in this synoptic diagram, be respectively three application server A, B and C and created logical storage resources A, logical storage resources B and logical storage resources C.This is in inventive embodiments, can on array, create the logical storage resources of corresponding size according to the size of the required storage space of application service for it, for example, when the size of a band is 1G, if application server A needs the storage space of 4G, then can create the logical storage resources A that forms by 4 bands for application server A.
In this step, can obtain the read write attribute information of application server to logical storage resources in several ways, import by hand as the keeper, application server initiatively reports etc.Can also obtain the read write attribute of application server by the mode of allocation buffer in one embodiment of the invention to logical storage resources, specific as follows:
In step 102 for after the different application server creates different logical storage resources, in storage system, distribute a buffer zone for each logical storage resources, make each application server carry out reading and writing data to the buffer zone of each self-corresponding logical storage resources, like this, just can be by adding up each application server to corresponding buffer zone carried out separately reading and writing data, obtain the read write attribute to logical storage resources of each application server, as the information such as block size of read-write ratio, read-write.
In this step, the characteristic information to the dissimilar RAID of the read write attribute of logical storage resources and described preservation according to application server is that each logical storage resources is selected a RAID type, for example, if application server to the read write attribute of a logical storage resources is: the read-write ratio is 5: 1, the read-write block size is 64KB (bulk), therefore according to table 1, RAID 10 and RAID 5 can both provide preferable performance, but the space availability ratio of RAID5 is than RAID 10 height, so take all factors into consideration the RAID array type of the final RAID 5 of selection in back as this logical storage resources.
For example, in the described logical storage resources schematic layout pattern of Fig. 3, logical storage resources A is designated as that RAID 5, logical storage resources B are designated as RAID 0 and logical storage resources C is designated as RAID 10.
In this step, after the RAID type of appointment logical storage resources, corresponding application server just can write data in this logical storage resources in the past.If the front is to obtain application server to the read write attribute of logical storage resources in the mode of allocation buffer, then after the RAID type of specifying logical storage resources, also further the data in each buffer zone are transferred in the corresponding logical storage resources.
As the above-mentioned disk array of setting up earlier shown in Figure 1, on disk array, create logical storage resources then, according to application server the read write attribute of logical storage resources is selected corresponding RAID type, with the logical storage resources is the technical scheme that unit specifies the RAID type, makes the application server of different business can both obtain readwrite performance preferably.
In embodiments of the present invention, be different application server assignment logic storage resources according to scheme shown in Figure 1, and after specifying the RAID type, can also change the RAID type of counterlogic storage resources according to the change of the read write attribute of application server.
Fig. 4 is the process flow diagram of having specified the logical storage resources change RAID type of RAID type in the embodiment of the invention.As shown in Figure 4, may further comprise the steps:
In this step, described trigger condition is: the RAID degradation in this appointment logical storage resources, perhaps specified the read write attribute on this logical storage resources of timing analysis when creating this appointment logical storage resources, and timing arrives.More than one of two kinds of conditions satisfy, then the read write attribute on this logical storage resources is analyzed.
In this step, because various dissimilar RAID are to the utilization factor difference of disk, therefore when changing the RAID type, the RAID that utilization factor is high needs extra application storage space when being converted to the low RAID of utilization factor, if application is less than extra storage space then can not change.
Step 404 is selected new RAID type with the RAID type conversion of this appointment logical storage resources.
Be that example describes the RAID type conversion with the logical storage resources A among Fig. 3 below:
Fig. 5 is the synoptic diagram before the logical storage resources A conversion RAID type in the embodiment of the invention.As shown in Figure 5, the RAID type before the logical storage resources A conversion is RAID 5, and D represents data in the data of its storage, and P represents proof test value, promptly improves safety of data with the verification redundant fashion.But in the read write attribute of the application server A on the current logical storage resources A a lot of small letters are arranged, performance is performed poor on RAID5, need be RAID 10 with the type conversion of logical storage resources A therefore.Because the space availability ratio of RAID 5, therefore needs extra application storage space than the space availability ratio height of RAID 10.Fig. 6 is the synoptic diagram after the logical storage resources A conversion RAID type in the embodiment of the invention.As can be seen from Figure 6, RAID 10 improves safety of data with the mirror image redundant fashion.
In the prior art, if application server changes to the visit read write attribute of logical storage resources, and the RAID at this logical storage resources place is to the read write attribute incompatibility after changing, the performance performance is bad, when needing to adjust, perhaps when the array degradation, there is not for the moment the disk that can change again, the influence of the readwrite performance of business when also very big, is needed to seek a RAID who satisfies current read write attribute, then by the keeper with this resource migration to new array.And according to scheme shown in Figure 4, read write attribute at application server changes, or array when degradation, do not need the RAID of resource migration to other, but directly be unit conversion RAID type with the logical storage resources, make the best performanceization of logical storage resources of storage system, and during the array type conversion, the space that only relates to the logical storage resources correspondence, thus switching time relatively be will significantly reduce the time that unit changes with the whole magnetic disk.
Because the array type conversion can influence performance, therefore the keeper can also specify this logical storage resources according to actual conditions whether needs carry out read write attribute analysis and RAID type conversion in the read-write process when creating logical storage resources, and can specify and when change.
In embodiments of the present invention, according to scheme shown in Figure 1 is different application server assignment logic storage resources, and after specifying the RAID type, can also be according to the actual requirements, the array type of conversion logic storage resources is to reach the purpose of dynamic release storage space.
Fig. 7 is second process flow diagram of having specified the logical storage resources change RAID type of RAID type in the embodiment of the invention.As shown in Figure 7, may further comprise the steps:
Step 701 when specifying the free memory deficiency in the logical storage resources, triggers the read write attribute analysis of the corresponding application server of this logical storage resources to this logical storage resources.
In this step, the free memory in specifying logical storage resources is during less than preset value, and for example free memory is specified 5% o'clock of logical storage resources less than this, analyzes the read write attribute on this appointment logical storage resources.
Step 702, according to this correspondence application server the characteristic information of the dissimilar RAID of the read write attribute of specifying logical storage resources and preservation is judged whether to exist the RAID type that can save storage space, be then, execution in step 703, otherwise, this appointment logical storage resources is not carried out the processing of RAID type conversion, and return execution in step 701.
In this step, when selecting to save the RAID type of storage space, with due regard to whether performance is suitable.
Step 703 is the described RAID type that can save storage space with specifying the RAID type conversion of logical storage resources, thereby reaches the purpose of Free up Memory.
For example: the current RAID type of logical storage resources C is RAID 10, and the read write attribute on it is the bulk read-write, therefore use RAID5 also can provide suitable performance, and the space availability ratio of RAID 5 is greater than RAID 10, if therefore this moment the storage system insufficient space, then can select logical storage resources C is converted to RAID 5.
Scheme shown in Figure 7 can be under the prerequisite that as far as possible reduces Effect on Performance, and the realization storage system is carried out the release of storage space automatically.
Fig. 8 is the composition structured flowchart of a kind of system management memory device of the embodiment of the invention.As shown in Figure 8, this device comprises: memory module 801, administration module 802 and specificity analysis module 803, wherein:
In Fig. 8, administration module 802 is further used for distributing a buffer zone for each logical storage resources in storage system, makes each application server carry out reading and writing data to the buffer zone of each self-corresponding logical storage resources; Specificity analysis module 803 is used for obtaining the read write attribute of corresponding application server to logical storage resources by adding up corresponding application server to the reading and writing data that buffer zone carried out; Administration module 802 is further used for the data in each buffer zone are transferred in the corresponding logical storage resources.
In Fig. 8, specificity analysis module 803, be further used for the pairing application server of appointment logical storage resources in the analyzing stored system to the read write attribute of this appointment logical storage resources, and judge that whether application server is complementary with the RAID type of described appointment logical storage resources to the read write attribute of this appointment logical storage resources, when not matching, specify the characteristic information of the dissimilar RAID of the read write attribute of logical storage resources and described preservation to specify new RAID type of logical storage resources selection according to application server to this, and described new RAID type is sent to administration module 802 for this; Administration module 802 is further used for the new RAID type of the appointment logical storage resources that receiving feature analysis module 803 sends, and is the new RAID type of described selection with the RAID type conversion of described appointment logical storage resources.
In Fig. 8, specificity analysis module 803 is used for analyzing application server to specifying the read write attribute of logical storage resources when the RAID of described appointment logical storage resources degradation; Perhaps, be used for the timing analysis application server to specifying the read write attribute of logical storage resources.
In Fig. 8, specificity analysis module 803, when being used for free memory in the appointment logical storage resources of described storage system less than preset value, analyze the pairing application server of this appointment logical storage resources to specifying the read write attribute of logical storage resources, and the characteristic information of the dissimilar RAID of the read write attribute of specifying logical storage resources and described memory module is judged whether to exist the RAID type that can save storage space according to this correspondence application server, be then, this RAID type that can save storage space is sent to administration module 802; Administration module 802, be further used for the RAID type that to save storage space of the appointment logical storage resources that receiving feature analysis module 803 sends, and will to specify the RAID type conversion of logical storage resources be the described RAID type that can save storage space.
In sum, the characteristic information of the dissimilar Redundant Array of Inexpensive Disc RAID of this preservation of the present invention, in storage system, select disk to form array, and on array, create logical storage resources respectively for different application servers, for each logical storage resources, this logical storage resources is distributed to corresponding application server, obtain the read write attribute of corresponding application server to this logical storage resources, characteristic information according to the dissimilar RAID of read write attribute that is obtained and described preservation is selected a RAID type, and makes the RAID in the storage system to provide the preferable performance service for application server as the technical scheme of the RAID type of this logical storage resources selected RAID type.And the scheme that subsequent dynamic Performance tuning and dynamic space discharge further makes the best performanceization of the application server on the logical storage resources in the storage system.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a storage system management method is characterized in that, this method comprises:
Preserve the characteristic information of dissimilar Redundant Array of Inexpensive Disc RAID;
In storage system, select disk to form array, and on array, create logical storage resources respectively for different application servers;
For each logical storage resources, this logical storage resources is distributed to corresponding application server, obtain the read write attribute of corresponding application server to this logical storage resources, characteristic information according to the dissimilar RAID of read write attribute that is obtained and described preservation is selected a RAID type, and with the RAID type of selected RAID type as this logical storage resources.
2. the method for claim 1 is characterized in that,
Before obtaining the read write attribute of corresponding application server, further comprise: in storage system, distribute a buffer zone, make each application server carry out reading and writing data the buffer zone of each self-corresponding logical storage resources for each logical storage resources to logical storage resources;
Describedly obtain corresponding application server the read write attribute of logical storage resources is comprised:, obtain the read write attribute of corresponding application server logical storage resources by adding up corresponding application server to the reading and writing data that buffer zone carried out;
For each logical storage resources, after with the RAID type of selected RAID type, further the data in the corresponding buffer zone are transferred in this logical storage resources as this logical storage resources.
3. the method for claim 1 is characterized in that, this method further comprises:
The pairing application server of appointment logical storage resources in the analyzing stored system is specified the read write attribute of logical storage resources to this, and judge that whether application server is complementary with the RAID type of described appointment logical storage resources to the read write attribute of specifying logical storage resources, when not matching, the characteristic information of the dissimilar RAID of the read write attribute of specifying logical storage resources and described preservation is specified new RAID type of logical storage resources selection for this according to application server;
With the RAID type conversion of this appointment logical storage resources is the new RAID type of described selection.
4. method as claimed in claim 3 is characterized in that,
When demoting, carries out the RAID in the described appointment logical storage resources step of described analytical applications server to the read write attribute of appointment logical storage resources; Perhaps
Regularly carry out the step of described analytical applications server to the read write attribute of appointment logical storage resources.
5. the method for claim 1 is characterized in that,
The characteristic information of the dissimilar RAID of described preservation is, by administrator hand input storage system, or collect automatically by storage system;
The characteristic information of described RAID comprises: the read write attribute of RAID, and/or the space loss of RAID, and/or the included disk number of RAID and the relation of array performance.
6. the method for claim 1 is characterized in that, this method further comprises:
When the free memory in the appointment logical storage resources in the described storage system during, analyze the pairing application server of this appointment logical storage resources to specifying the read write attribute of logical storage resources less than preset value;
According to this application server the characteristic information of the dissimilar RAID of the read write attribute of specifying logical storage resources and described preservation is judged whether to exist the RAID type that can save storage space, be then, with specifying the RAID type conversion of logical storage resources is the described RAID type that can save storage space, otherwise, not to specifying logical storage resources to carry out the processing of RAID type conversion.
7. a system management memory device is characterized in that, this device comprises: memory module, administration module and specificity analysis module, wherein,
Memory module is used to preserve the characteristic information of dissimilar Redundant Array of Inexpensive Disc RAID;
Administration module is used for selecting disk to form array in storage system, and creates logical storage resources respectively for different application servers on array; For each logical storage resources, this logical storage resources is distributed to corresponding application server, the RAID type that the receiving feature analysis module sends corresponding to this logical storage resources, and with the RAID type of this RAID type that receives as this logical storage resources;
The specificity analysis module, be used for each logical storage resources, obtain the read write attribute of corresponding application server, and select a RAID type for this logical storage resources according to the characteristic information of the dissimilar RAID in read write attribute that is obtained and the memory module to this logical storage resources; And be used for and send to administration module for the selected RAID type of each logical storage resources.
8. device as claimed in claim 7 is characterized in that,
Described administration module is further used for distributing a buffer zone for each logical storage resources in storage system, makes each application server carry out reading and writing data to the buffer zone of each self-corresponding logical storage resources;
Described specificity analysis module is used for obtaining the read write attribute of corresponding application server to logical storage resources by adding up corresponding application server to the reading and writing data that buffer zone carried out;
Described administration module is further used for the data in each buffer zone are transferred in the corresponding logical storage resources.
9. device as claimed in claim 7 is characterized in that,
Described specificity analysis module, be further used for the pairing application server of appointment logical storage resources in the analyzing stored system to the read write attribute of this appointment logical storage resources, and judge that whether application server is complementary with the RAID type of described appointment logical storage resources to the read write attribute of specifying logical storage resources, when not matching, according to this application server the characteristic information of the dissimilar RAID of the read write attribute of specifying logical storage resources and described preservation is specified new RAID type of logical storage resources selection for this, and described new RAID type is sent to administration module;
Described administration module is further used for the new RAID type of the appointment logical storage resources that the receiving feature analysis module sends, and is the new RAID type of described selection with the RAID type conversion of described appointment logical storage resources.
10. device as claimed in claim 9 is characterized in that,
Described specificity analysis module is used for analyzing application server to specifying the read write attribute of logical storage resources when the RAID of described appointment logical storage resources degradation; Perhaps, be used for the timing analysis application server to specifying the read write attribute of logical storage resources.
11. device as claimed in claim 7 is characterized in that,
Described specificity analysis module, when being used for free memory in the appointment logical storage resources of described storage system less than preset value, analyze the pairing application server of this appointment logical storage resources to specifying the read write attribute of logical storage resources, and the characteristic information of the dissimilar RAID of the read write attribute of specifying logical storage resources and described memory module is judged whether to exist the RAID type that can save storage space according to this correspondence application server, be then, this RAID type that can save storage space is sent to administration module;
Described administration module, be further used for the RAID type that to save storage space of the appointment logical storage resources that the receiving feature analysis module sends, and will to specify the RAID type conversion of logical storage resources be the described RAID type that can save storage space.
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| CN109189333B (en) * | 2018-08-15 | 2021-10-15 | 郑州云海信息技术有限公司 | Hard disk adaptation method, device and system |
| CN111090394A (en) * | 2019-12-05 | 2020-05-01 | 烽火通信科技股份有限公司 | Volume-level RAID-based magnetic array management method and device |
| CN114415968B (en) * | 2022-01-26 | 2023-04-07 | 南京晓庄学院 | Storage system and data writing method thereof |
| CN115639968B (en) * | 2022-11-16 | 2023-02-28 | 苏州浪潮智能科技有限公司 | Method, device, equipment and medium for allocating RAID (redundant array of independent disks) capacity space |
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| CN1506839A (en) * | 2002-12-06 | 2004-06-23 | 中国科学院计算技术研究所 | High-availability network memory system based on configureable virtual disc array |
| CN1645342A (en) * | 2005-01-21 | 2005-07-27 | 清华大学 | Large scale resource memory managing method based on network under SAN environment |
| CN101196797A (en) * | 2007-12-07 | 2008-06-11 | 华中科技大学 | Memory system data arrangement and commutation method |
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