Disk storage system and method for controlling disk storage and device thereof

A technology of disk storage and control device, applied in the direction of input/output to record carrier, etc., can solve the problems of small disk capacity, high cost, consumption, etc., and achieve the effect of improving read and write performance and saving cost

Inactive Publication Date: 2009-09-16
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, SSD disks with high I / O rate also have the defects of high cost and small disk capacity, so choosing SSD disks as physical disks in the disk storage system will consume extremely high costs

Method used

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  • Disk storage system and method for controlling disk storage and device thereof
  • Disk storage system and method for controlling disk storage and device thereof
  • Disk storage system and method for controlling disk storage and device thereof

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Embodiment Construction

[0059] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0060] In the embodiment of the present invention, the SSD disk and the disk-type disk are selected as the physical disk of the disk storage system at the same time, and layered storage is realized in the following manner based on the SSD disk and the disk-type disk:

[0061] When the frequency of the processor receiving write commands is high, the write data in the write command is written to the SSD disk with a higher I / O rate to ensure that the read and write performance of the disk storage system at this time will not be affected by the physical disk I / O The effect of O rate is reduced;

[0062] When the frequency of the processor receiving write commands is low, the I / O rate of the disk-type disk can meet the normal read and write, and there is no ...

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PUM

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Abstract

The invention discloses a disk storage system and a method for controlling disk storage and a device thereof. In the invention, both a first disk with relatively high I/O rate and a second disk with relatively low I/O rate are taken as physical disks of the disk storage system; when a processor receives relatively high frequency of write command, write data in the write command are written into the first disk with higher I/O rate to ensure that read-write performance of the disk storage system is not reduced due to the influence of the I/O rate of the physical disks; when the processor receives relatively low frequency of the write command, the I/O rate of the second disk can meet the need for normal read-write; at the moment, write data in the write command are written into the second disk with relatively low I/O rate, thereby not only improving read-write performance of the disk storage system but also saving cost of the disk storage system.

Description

technical field [0001] The invention relates to disk storage technology, in particular to a disk storage system capable of realizing layered storage, and a disk storage control method and device. Background technique [0002] The existing disk storage system usually includes a processor installed in the storage controller and a physical disk installed in the disk cabinet, and the processor writes the write command according to the block address in the write command received from the network host. The write data in the physical disk is written to the corresponding logical block in the physical disk; and the processor reads data from the corresponding logical block in the physical disk according to the block address in the read command it receives. Wherein, the physical disk usually adopts any disk type disk such as Serial ATA (Serial Advanced Technology Attachment, SATA) disk, serial SCSI (SAS) disk, or solid state disk (Solid State Disks, SSD). [0003] Compared with disk-t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
Inventor 朱辉胡荣国
Owner NEW H3C TECH CO LTD
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