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Construction method of vertical-type grouping parallel-distributed and checked disk array

A disk array and construction method technology, applied in the direction of input/output to record carrier, etc., can solve the problems of increasing disk invalid online time, wasting energy, shortening disk service life, etc.

Active Publication Date: 2011-10-26
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 (VTL), continuous data protection (CDP) and other applications, continuous data streams are sequentially written to the disk, and sequential storage is performed, that is, the address of the stored data It is continuous and satisfies the locality principle of storage 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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  • Construction method of vertical-type grouping parallel-distributed and checked disk array
  • Construction method of vertical-type grouping parallel-distributed and checked disk array
  • Construction method of vertical-type grouping parallel-distributed and checked disk array

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Embodiment Construction

[0079] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0080] In this embodiment, the disk array SVE-RAID 5 is composed of 5 Seagate Cheetah 10K disks, and the capacity of a single disk is 300GB, and its related parameters are shown in Table 2. Stripe the 5 disks, such as figure 1 As shown, it is divided into 5 strips, numbered 1-5. There are 5 storage blocks on each stripe, of which 1 storage block is a check block and the other 4 storage blocks are data blocks; the first data block of the fifth disk and the second data of the fourth disk block, the third data block of the third disk, the fourth data block of the second disk, and the fifth data block of the first disk are check blocks; other storage blocks are data blocks; check blocks are composed of The 4 data blocks in the stripe where the check block is located are obtained through XOR operation.

[0081] Table 2 Related parameters of Sea...

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Abstract

The invention relates to a construction method of a vertical-type grouping parallel-distributed and checked disk array, which is applicable to continuous data storage and belongs to the technical field of independent disk redundant arrays. Aiming at the characteristic of the continuous data storage, the invention designs and realizes a vertical-type grouping parallel-distributed and checked disk array SVE-RAID 5 which mainly comprises the layout of stored data on the SVE-RAID 5, the reading and writing of the stored data, the generation mode of checked data, data buffering and preread optimization during data reading, the converting and dispatching of the working condition of a disk, and the like. The disk array SVE-RAID 5 not only has good redundant-data protection mechanism, but also can markedly reduce the power consumption and prolong the service life.

Description

technical field [0001] The present invention relates to a construction method of redundant array of independent disks (Redundant Arrays of Independent Disks, RAID), in particular to a construction method of a vertical grouping parallel distributed verification disk array, which is suitable for continuous data storage and belongs to independent disks Redundant array technical field. 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 a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
Inventor 孙志卓周泽湘谭毓安王道邦何广韬沈晶耿成山李虓
Owner TOYOU FEIJI ELECTRONICS
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