CN110275669B - Data storage method and device and electronic equipment - Google Patents
Data storage method and device and electronic equipment Download PDFInfo
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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
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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
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0638—Organizing or formatting or addressing of data
- G06F3/0644—Management of space entities, e.g. partitions, extents, pools
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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
- G06F3/0628—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
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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
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0683—Plurality of storage devices
- G06F3/0689—Disk arrays, e.g. RAID, JBOD
Abstract
The application provides a data storage method and device and electronic equipment. In the application, the service performance of the storage area of the disk is subdivided, so that the services with different service performances or the services with different service performances required by the same service in different time periods are hierarchically stored in the disk with the same storage performance, and compared with the existing storage media with different storage performances, the data storage cost is greatly reduced.
Description
Technical Field
The present application relates to data storage technologies, and in particular, to a data storage method and apparatus, and an electronic device.
Background
In order to store service data with different service performances, a common method is to store the data in storage media with different storage performances, such as Solid State Drives (SSD) and Serial Attached SCSI (SAS), and perform operations such as automatic or manual data migration and copying between the storage media with different storage performances. This method of storing data on Storage media of different Storage capabilities is called Hierarchical Storage (replicated Storage) and also called Hierarchical Storage Management (Hierarchical Storage Management).
Here, the different storage performances of the storage media mean that the writing speeds of the storage media are different. For example, the SSD and SAS have different performances, the SSD has a write speed of 200M/S (200 Mms/S), and the SAS has a write speed of 170M/S (170 Mms/S).
The storage media with different storage performances have different costs, and in order to implement the above-mentioned storage of the service data with different service performances on the storage media with different storage performances, the data storage cost is increased.
Disclosure of Invention
The application provides a data storage method and device and electronic equipment, so that low-cost data storage is realized.
The technical scheme provided by the application comprises the following steps:
a data storage method is applied to a storage server and comprises the following steps:
dividing the storage space of each disk in M disks with the same storage performance into at least two storage areas, wherein different storage areas on the same disk correspond to different service performances; the M disks are disks in a disk system accessed by the storage server, and M is greater than 1 and less than or equal to the total number N of the disks in the disk system;
dividing storage regions corresponding to the same service performance on different disks into the same resource group;
and selecting a storage area for storing the service from each resource group based on service performance required by the service.
In one example, the dividing the storage space of each of the M disks with the same storage performance into at least two storage areas includes:
the method comprises the steps of dividing sectors on each disk in M disks with the same storage performance into at least two blocks, wherein the sectors on each disk are used as storage space of the disk and are composed of arc sections of divided magnetic tracks on the disk.
In one example, before the selecting a storage region for the service from the respective resource group for storing the service based on the service performance required by the service, the method further comprises: forming a resource pool by storage regions in each resource group, and dividing the resource pool into storage blocks with the same size; recording storage blocks of the same resource group to the same logic unit LUN, wherein the service performance corresponding to the LUN is the service performance corresponding to the storage block corresponding to the LUN;
the selecting a storage region for storing the service from each resource group for the service based on the service performance required by the service comprises:
determining a LUN corresponding to the service performance required by the service from each LUN;
and selecting a storage block for storing the service from the determined LUN.
In one example, before the selecting a storage region for storing the service from each resource group for the service based on the service performance required by the service, the method further comprises: forming a resource pool by the storage regions in each resource group, dividing the resource pool into storage blocks with the same size, and recording all the storage blocks to the same logic unit LUN;
the selecting a storage region for storing the service from each resource group for the service based on service performance required by the service comprises:
and selecting a storage block corresponding to the service performance from the LUN based on the service performance required by the service.
In one example, different storage areas on the same disk may be the same size or different sizes;
the disk models of the M disks are the same or different.
A data storage apparatus, applied to a storage server, comprising:
the device comprises a disk dividing unit, a storage unit and a service processing unit, wherein the disk dividing unit is used for dividing the storage space of each disk in M disks with the same storage performance into at least two storage areas, and different storage areas on the same disk correspond to different service performances; the M disks are disks in a disk system accessed by the storage server, and M is greater than 1 and less than or equal to the total number N of the disks in the disk system;
the resource group dividing unit is used for dividing storage regions corresponding to the same service performance on different disks into the same resource group;
and the storage control unit is used for selecting a storage area for storing the service from each resource group based on the service performance required by the service.
In one example, the dividing, by the disk dividing unit, a storage space of each of M disks with the same storage performance into at least two storage areas includes:
the method comprises the steps of dividing sectors on each disk in M disks with the same storage performance into at least two blocks of storage, wherein the sectors on each disk are used as storage space of the disk and are composed of arc sections divided by magnetic tracks on the disk.
In one example, the resource group dividing unit further forms storage regions in each resource group into a resource pool, and divides the resource pool into storage blocks with the same size; recording storage blocks of the same resource group to the same logic unit LUN, wherein the service performance corresponding to the LUN is the service performance corresponding to the storage block corresponding to the LUN;
the storage control unit selects a storage region for storing the service from each resource group for the service based on service performance required by the service, and the storage control unit comprises:
determining a LUN corresponding to the service performance required by the service from each LUN;
and selecting a storage block for storing the service from the determined LUN.
In an example, the resource group dividing unit further forms a resource pool with storage regions in each resource group, divides the resource pool into storage blocks with the same size, and records all the storage blocks to the same logical unit LUN;
the storage control unit selects a storage region for storing the service from each resource group for the service based on service performance required by the service, and the storage control unit comprises:
and selecting a storage block corresponding to the service performance from the LUN based on the service performance required by the service.
In one example, the size of different storage areas on the same disk is the same or different;
the disk models of the M disks are the same or different.
An electronic device, comprising: an internal bus, a memory, a processor, and a communication interface; the processor, the communication interface and the memory complete mutual communication through the internal bus; the memory is used for storing machine feasible instructions corresponding to the data storage method;
the processor is configured to read the machine-readable instructions on the memory and execute the instructions to implement the data storage method as described above.
According to the technical scheme, the service performance is subdivided in the storage area of the disk, so that the services with different service performances or different service performances required by the same service in different time periods are hierarchically stored in the disk with the same storage performance.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a flow chart of a method provided herein;
FIG. 2 is a schematic diagram of disk partitioning provided herein;
FIG. 3 is a schematic diagram of resource partitioning provided herein;
FIG. 4 is a schematic diagram of resource virtualization provided herein;
FIG. 5 is a schematic diagram of the structure of the device provided in the present application;
fig. 6 is a schematic structural diagram of an electronic device provided in the present application.
Detailed Description
The application provides a magnetic disk based on the same storage performance for storing service data with different service performances so as to give full play to the storage performance of the magnetic disk.
In order to make the objects, technical solutions and advantages of the present invention clearer, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments:
referring to fig. 1, fig. 1 is a flowchart of a method provided by the present application, where the method is applied to a Storage Server (Storage Server). The storage server is not a general ordinary server, is specially designed for facilitating data storage, and may have a little extra storage or a large storage space. It has local access to the disk system. In addition to local access to disk systems, storage servers may also carry a large heap of special services, including storage management software, additional hardware to ensure high flexibility, RAID configuration types, and additional network connections to ensure more desktop users are connected.
As shown in fig. 1, the process may include the following steps:
In one example, the storage performance herein refers to the writing speed, and the storage performance of the M disks is the same, which means that the writing speeds of the M disks are the same. As an example, memory performance herein refers broadly to: memory performance error is within a certain error.
In one example, the M disks are disks in a disk system accessed by the storage server. The disk system is a system constructed by N disks and used for providing a storage space. For one embodiment, M is greater than 1 and less than or equal to the total number of disks N in the disk system. The disk models of the N disks in the disk system are the same or different. In one example, the disks are of the same type, which means that the disks are from the same manufacturer, whereas the disks are of different types, which means that the disks are from different manufacturers.
In one example, the service performance refers to the read-write performance required by the service. For example, in the field of video storage, recording at an intersection with a large traffic flow requires 7 × 24 hours to ensure the read-write performance, which is referred to herein as high service performance; the intersection with little pedestrian volume has low video recording and low read-write performance, which is called as low service performance.
It should be noted that, in the present application, the disk models of the M disks are the same or different. And the sizes of different storage areas on the same disk are the same or different.
And 102, dividing storage regions corresponding to the same service performance on different disks into the same resource group.
The same service performance here refers broadly to: service performance with a service performance error within a certain error.
And 103, selecting a storage area for storing the service from each resource group based on the service performance required by the service.
In the application, service performance subdivision is performed on the storage area of the disk, service performance required based on the service is selected from each resource group for the service, the storage area for storing the service is selected, finally, services with different service performances or different service performances required by the same service in different time periods are stored in the disk with the same storage performance in a layered mode, the performance of the disk (not limited to a mechanical disk) is fully exerted, and compared with the existing storage media with different storage performances, the data storage cost is greatly reduced.
Thus, the flow shown in fig. 1 is completed.
In one example, before performing step 103, the present application further includes: the storage area is virtualized.
As one embodiment, the storage area virtualization includes the following steps a1 to a2:
step a1, forming a resource pool by storage regions in each resource group, and dividing the resource pool into storage blocks with the same size, such as 128M.
And a2, recording the storage blocks of the same resource group to the same Logic Unit (LUN), wherein the service performance corresponding to the LUN is the service performance corresponding to the storage block corresponding to the LUN.
Through the steps a1 to a2, storage blocks with different service performances are in different LUNs. Based on this, the step 103 of selecting a storage region for storing the service from each resource group based on the service performance required by the service includes: determining LUNs corresponding to the service performance required by the service from the LUNs; and selecting a storage block for storing the service from the determined LUN.
As another embodiment, the storage area virtualization includes the following steps b1 to b2:
step b1, forming a resource pool by the storage areas in each resource group, and dividing the resource pool into storage blocks with the same size.
Step b2, recording all storage blocks to the same LUN;
through the steps b1 to b2, the storage blocks with different service performances are in the same LUN. Based on this, in step 103, selecting a storage region for storing the service from each resource group based on the service performance required by the service includes: and selecting a storage block corresponding to the service performance from the LUN based on the service performance required by the service.
In use, when the disk rotates, the heads are held in a position, and each head makes a circular Track on the disk surface, which is called a Track (Track). The disk is not continuously recording data, but is divided into arc segments. These arc segments may be associated with "Sector areas", called sectors, for storage space of the disk.
Based on this, as an embodiment in the present application, the dividing, in step 101, the storage space of each of the M disks with the same storage performance into at least two storage areas includes:
step c1, dividing the sectors on each disk in the M disks with the same storage performance into at least two storage areas.
Step c1 is described by way of example:
as an embodiment, in the present application, a sector of a magnetic disk may be divided into an outer ring, an inner ring and a middle ring, where the outer ring refers to at least one sector located at the outermost side of the magnetic disk, and the inner ring refers to at least one sector located at the innermost side of the magnetic disk; the middle ring is at least one sector between the outer ring and the inner ring. Under the same rotating speed, the linear speed of the outer ring is the maximum, the reading and writing speed is the highest, the middle ring is the next, and the inner ring is the lowest. Therefore, the sector on each disk in the M disks with the same storage performance is finally divided into at least two storage areas (such as an outer ring, an inner ring and a middle ring with different reading and writing speeds). Fig. 2 shows an example of a structure in which disks having the same storage performance are divided into at least two storage areas.
The present application is described below by way of example with reference to fig. 2:
as shown in fig. 2, each disk is divided into an outer ring, an inner ring, and a middle ring. Based on the above description of the steps a1 to a2 of virtualization (steps b1 to b2 are similar and are not described again), in this embodiment, the outer circle of each disk is divided into a resource group (denoted as resource group 1), the middle circle of each disk is divided into a resource group (denoted as resource group 2), and the inner circle of each disk is divided into a resource group (denoted as resource group 3). Resource group 1 to resource group 3 constitute a resource pool, as shown in fig. 3.
On the basis of the resource pool shown in fig. 3, in the present embodiment, the storage space of the resource pool is divided into storage blocks with the same size, for example, 128M. Examples are: if the storage spaces of resource group 1 to resource group 3 are equal to each other and are all 1G, the storage space of the resource pool shown in fig. 3 is 3G, and if the size of the storage block is 128M, the storage space 3G of the resource pool shown in fig. 3 can be divided into 3 × 1024/128=24 storage blocks of 128M.
And recording the storage blocks of the same resource group to the same LUN. If the storage spaces of the resource group 1 to the resource group 3 are equal to each other and are all 1G, and the size of the storage block is 128M, then 1024/128=8 128M storage blocks in the resource group 1 are recorded to the same LUN (denoted as LUN 1), 1024/128=8 128M storage blocks in the resource group 2 are recorded to the same LUN (denoted as LUN 2), and 1024/128=8 128M storage blocks in the resource group 3 are recorded to the same LUN (denoted as LUN 3), which is illustrated in fig. 4.
Here, because each storage block in the resource group 1 is divided by a storage space formed by outer circles on each disk, based on the characteristics of the outer circles, the LUN1 is used to store a service that has a higher requirement on read-write performance, for example, higher than a first set value; LUN2 is used to store services that have higher requirements for read/write performance, for example, lower than the first setting value but greater than the second setting value, and LUN2 is used to store services that have lower requirements for read/write performance, for example, lower than the second setting value. In this way, when a service is running, a storage block for storing the service is selected for the service from each LUN based on service performance required by the service. Finally, the services with different service performances or different service performances required by the same service in different time periods are hierarchically stored in the disks with the same storage performance, and compared with the existing storage media with different storage performances, the storage media hierarchically store the services with different service performances, the data storage cost is greatly reduced.
The method provided by the present application is described above, and the device provided by the present application is described below:
referring to fig. 5, fig. 5 is a diagram illustrating a structure of the apparatus according to the present invention. The device is applied to the storage server and comprises:
the device comprises a disk dividing unit, a storage unit and a service processing unit, wherein the disk dividing unit is used for dividing the storage space of each disk in M disks with the same storage performance into at least two storage areas, and different storage areas on the same disk correspond to different service performances; the M disks are disks in a disk system accessed by the storage server, and M is greater than 1 and less than or equal to the total number N of the disks in the disk system;
the resource group dividing unit is used for dividing storage regions corresponding to the same service performance on different disks into the same resource group;
and the storage control unit is used for selecting a storage area for storing the service from each resource group based on the service performance required by the service.
In one example, the dividing, by the disk dividing unit, a storage space of each of M disks with the same storage performance into at least two storage areas includes:
the method comprises the steps of dividing sectors on each disk in M disks with the same storage performance into at least two storage areas, wherein the sectors on each disk are used as storage space of the disk and are composed of arc sections of divided magnetic tracks on the disk.
In one example, the resource group dividing unit further forms storage regions in each resource group into a resource pool, and divides the resource pool into storage blocks with the same size; recording storage blocks of the same resource group to the same logic unit LUN, wherein the service performance corresponding to the LUN is the service performance corresponding to the storage block corresponding to the LUN; based on this, the storage control unit selecting a storage region for storing the service from each resource group for the service based on service performance required by the service includes:
determining a LUN corresponding to the service performance required by the service from each LUN;
and selecting a storage block for storing the service from the determined LUN.
In another example, the resource group dividing unit further forms a resource pool from storage regions in each resource group, divides the resource pool into storage blocks with the same size, and records all the storage blocks to the same logical unit LUN; based on this, the storage control unit selecting a storage region for storing the service from each resource group for the service based on service performance required by the service includes:
and selecting a storage block corresponding to the service performance from the LUN based on the service performance required by the service.
In one example, the size of different storage areas on the same disk is the same or different;
the disk models of the M disks are the same or different.
Thus, the description of the structure of the device shown in fig. 5 is completed.
Referring to fig. 6, fig. 6 is a structural diagram of an electronic device provided in the present application. As shown in fig. 6, the electronic apparatus includes: an internal bus, a memory, a processor, and a communication interface; the processor, the communication interface and the memory complete mutual communication through the internal bus; the memory is used for storing machine feasible instructions corresponding to the data storage method;
the processor is used for reading the machine readable instructions on the memory and executing the instructions to realize the data storage method provided by the application.
Thus, the description of the structure shown in fig. 6 is completed.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (11)
1. A data storage method is applied to a storage server and comprises the following steps:
dividing the storage space of each disk in M disks with the same storage performance into at least two storage areas, wherein different storage areas on the same disk correspond to different service performances; the M disks are disks in a disk system accessed by the storage server, and M is greater than 1 and less than or equal to the total number N of the disks in the disk system;
dividing storage regions corresponding to the same service performance on different disks into the same resource group; different resource groups correspond to different service capabilities; the service performance comprises read-write performance;
and selecting a storage area for storing the service from each resource group based on service performance required by the service.
2. The method of claim 1, wherein the dividing the storage space of each of the M disks with the same storage performance into at least two storage areas comprises:
the method comprises the steps of dividing sectors on each disk in M disks with the same storage performance into at least two blocks, wherein the sectors on each disk are used as storage space of the disk and are composed of arc sections of divided magnetic tracks on the disk.
3. The method of claim 1, wherein before the selecting a storage region for storing the service from each resource group for the service based on the service performance required by the service, the method further comprises: forming a resource pool by the storage regions in each resource group, and dividing the resource pool into storage blocks with the same size; recording storage blocks of the same resource group to the same logic unit LUN, wherein the service performance corresponding to the LUN is the service performance corresponding to the storage block corresponding to the LUN;
the selecting a storage region for storing the service from each resource group for the service based on service performance required by the service comprises:
determining a LUN corresponding to the service performance required by the service from each LUN;
and selecting a storage block for storing the service from the determined LUN.
4. The method of claim 1, wherein before the selecting a storage region for storing the service for the service from each resource group based on the service performance required by the service, the method further comprises: forming a resource pool by the storage regions in each resource group, dividing the resource pool into storage blocks with the same size, and recording all the storage blocks to the same logic unit LUN;
the selecting a storage region for storing the service from each resource group for the service based on the service performance required by the service comprises:
and selecting a storage block corresponding to the service performance from the LUN based on the service performance required by the service.
5. The method of claim 1, wherein the sizes of different storage areas on the same disk are the same or different;
the disk models of the M disks are the same or different.
6. A data storage device, applied to a storage server, comprising:
the device comprises a disk dividing unit, a storage unit and a service processing unit, wherein the disk dividing unit is used for dividing the storage space of each disk in M disks with the same storage performance into at least two storage areas, and different storage areas on the same disk correspond to different service performances; the M disks are disks in a disk system accessed by the storage server, and M is greater than 1 and less than or equal to the total number N of the disks in the disk system;
the resource group dividing unit is used for dividing storage regions corresponding to the same service performance on different disks into the same resource group; different resource groups correspond to different service capabilities; the service performance comprises read-write performance;
and the storage control unit is used for selecting a storage area for storing the service from each resource group based on the service performance required by the service.
7. The apparatus of claim 6, wherein the disk dividing unit divides the storage space of each of the M disks with the same storage performance into at least two storage areas, including:
the method comprises the steps of dividing sectors on each disk in M disks with the same storage performance into at least two pieces of storage, wherein the sectors on each disk are used as storage space of the disk and are composed of arc sections of divided magnetic tracks on the disk.
8. The apparatus according to claim 6, wherein the resource group partitioning unit further groups the storage areas in each resource group into a resource pool, and partitions the resource pool into storage blocks of the same size; recording storage blocks of the same resource group to the same logic unit LUN, wherein the service performance corresponding to the LUN is the service performance corresponding to the storage block corresponding to the LUN;
the storage control unit selects a storage region for storing the service from each resource group for the service based on service performance required by the service, and the storage control unit comprises:
determining a LUN corresponding to the service performance required by the service from each LUN;
and selecting a storage block for storing the service from the determined LUN.
9. The apparatus according to claim 6, wherein the resource group partitioning unit further groups the storage regions in each resource group into resource pools, divides the resource pools into storage blocks of the same size, and records all the storage blocks to the same logical unit LUN;
the storage control unit selects a storage region for storing the service from each resource group for the service based on service performance required by the service, and the storage control unit comprises:
and selecting a storage block corresponding to the service performance from the LUN based on the service performance required by the service.
10. The apparatus of claim 6, wherein the sizes of different storage areas on the same disk are the same or different;
the disk models of the M disks are the same or different.
11. An electronic device, comprising: an internal bus, a memory, a processor, and a communication interface; the processor, the communication interface and the memory complete mutual communication through the internal bus; the memory is used for storing machine readable instructions corresponding to the data storage method;
the processor, configured to read the machine-readable instructions on the memory and execute the instructions to implement the data storage method of any one of claims 1-5.
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| CN104391659A (en) * | 2014-12-03 | 2015-03-04 | 浪潮集团有限公司 | Disk-based technology for achieving automatic hierarchical storage of cold data and hot data |
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