Method for constructing energy-saving disk array of vertical configuration distribution check

A disk array and construction method technology, applied in energy-saving computing, energy-saving ICT, sustainable buildings, etc., can solve the problems of non-existent I/O concurrency, increasing disk invalid online time, shortening disk service life, etc.

Active Publication Date: 2012-01-25
TOYOU FEIJI ELECTRONICS
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  • Abstract
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  • Claims
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Problems solved by technology

[0011] However, in the field of continuous data storage, such as video surveillance, virtual tape library, continuous data protection and other applications, the continuous data stream is written to the disk sequentially, and the sequential storage is performed, that is, the addresses of the stored data are continuous, satisfying the storage requirements. The principle of locality of space access, so there is no I / O concurrency
Commonly used disk arrays, in order to improve data access speed and ensure I / O concurrency, disperse and store continuous data on different disks. Although only one or a few logically adjacent disks are accessed each time, most disks in the array If there is no task, it must be idling, which not only wastes a lot of energy, but also greatly increases the invalid online time of the disk, seriously shortening the service life of the disk

Method used

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  • Method for constructing energy-saving disk array of vertical configuration distribution check
  • Method for constructing energy-saving disk array of vertical configuration distribution check
  • Method for constructing energy-saving disk array of vertical configuration distribution check

Examples

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Embodiment 1

[0077] Write operation embodiment 1: When the continuous data read and write operation is performed on the disk array S-RAID 5, the state of the disk changes as image 3 Shown: Initially, the logical address of the data is accessed, and the data block 12 is calculated. The data block 12 is on the disk 1, and the parity block of the same stripe as the data block 12 is on the disk 3. If disk 1 and Disk 3 is in the stopped state, then it goes to the ready state, see image 3 Medium①; when starting to read and write data on Disk 1 and Disk 3, Disk 1 and Disk 3 will turn from the ready state to the running state, see image 3 Medium ②; Since this access ends in data block 12, after the end of this access, Disk 1 and Disk 3 will turn from the running state to the ready state, see image 3 Middle ③, and then exit this schedule.

[0078] Write operation embodiment 2: Initially, access the logical address of the data, calculate that it is on the data block 12, the data block 12 is on the di...

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Abstract

The invention relates to a method for constructing an energy-saving disk array of vertical configuration distribution check, which is suitable for continuous data storage and belongs to the technical field of redundant arrays of independent disks. Aiming at the characteristics of continuous data storage, an energy-saving disk array S-RAID 5 of the vertical configuration distribution check is designed. The method mainly comprises the steps of: distributing storage data in the S-RAID 5, reading and writing the storage data, checking a generation mode of the data, buffering, and prereading and optimizing the data when the data is written, switching and scheduling work states of a disk, and the like. The disk array S-RAID 5 has a better redundant data protecting mechanism, and can remarkably reduce the power consumption and prolong the service life.

Description

Technical field [0001] The invention relates to a method for constructing a redundant array of independent disks (Redundant Arrays of Independent Disks, RAID), in particular to a method for constructing an energy-saving disk array with vertical arrangement and distributed check, which is suitable for continuous data storage and belongs to independent disks Redundant array technology field. Background technique [0002] In the modern storage field, in order to improve the reliability of stored data and the input and output performance of the storage system, people have designed a variety of data storage schemes. These data storage schemes are usually various types of redundant arrays of independent disks (Redundant Arrays of Independent Disks). Independent Disks, RAID). By using specific hardware or software, RAID combines multiple physical storage devices such as disks to form a unified logical storage device. [0003] The following explains the technical terms commonly used in R...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/06G06F3/06
CPCY02B60/1225Y02D10/00
Inventor 谭毓安孙志卓周泽湘李虓谢红军王成武郭毅李艳国
Owner TOYOU FEIJI ELECTRONICS
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