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Method for constructing vertically-arranged and centrally-inspected energy-saving disk arrays

A technology of disk array and construction method, applied in the direction of response error generation, redundant code error detection, input/output to record carrier, etc., can solve the problem of increasing disk invalid online time, no I/O concurrency, shortening Disk service life and other issues, to achieve the effect of reducing the frequent movement of the magnetic head, good redundant data protection mechanism, and significant energy saving effect

Active Publication Date: 2011-02-16
TOYOU FEIJI ELECTRONICS
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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

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  • Method for constructing vertically-arranged and centrally-inspected energy-saving disk arrays
  • Method for constructing vertically-arranged and centrally-inspected energy-saving disk arrays
  • Method for constructing vertically-arranged and centrally-inspected energy-saving disk arrays

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Embodiment Construction

[0068] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0069] In this embodiment, the disk array S-RAID 4 is composed of 4 Seagate Cheetah 10K disks, and the capacity of a single disk is 300GB, and its related parameters are shown in Table 2. Among them, 1 check disk and 3 data disks, such as figure 1 shown. Divide the four disks into stripes and divide them into four stripes, numbered 1 to 4. The blocks of each stripe on the data disk are called data blocks, and the blocks of each stripe on the check disk are called check blocks; the logical addresses of adjacent data blocks in the same data disk are adjacent and the logical addresses of adjacent data disks are also adjacent, that is, the logical address of the last data block of the previous data disk is adjacent to the logical address of the first data block of the next data disk, and the The numbers of the data blocks are 11, 21, 31; the n...

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Abstract

The invention relates to a method for constructing vertically-arranged and centrally-inspected energy-saving disk arrays, which is suitable for continuous data storage and belongs to the technical field of redundant arrays of independent disks (RAID). According to the characteristic of continuous data storage, a new S-RAID 4 is designed and implemented. The new RAID mainly comprises the layout of stored data on the S-RAID 4, the reading and writing of the stored data, the generating mode of inspection data, data buffering and pre-reading optimization during data writing, switching and scheduling of disk working state and the like. The disk array S-RAID 4 has a good redundant data protection mechanism and can remarkably lower power consumption and prolong service life.

Description

technical field [0001] The invention relates to a construction method of Redundant Arrays of Independent Disks (RAID), in particular to a construction method of an energy-saving disk array with vertical arrangement and centralized verification, which is suitable for continuous data storage and belongs to independent The technical field of redundant array of disks. Background technique [0002] In the field of modern storage, in order to improve the reliability of stored data and improve the input and output performance of storage systems, people have designed a variety of data storage solutions, which are usually various types of redundant arrays of independent disks (Redundant Arrays of 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 technical terms commonly used in RAID are explained below: [0004] Stripe: Also known as Stripe; it is a ...

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Application Information

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IPC IPC(8): G06F11/10G06F3/06
Inventor 谭毓安孙志卓周泽湘李虓王成武郭毅王道邦李艳国章珉
Owner TOYOU FEIJI ELECTRONICS
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