Multi-disk-cabin hard disk array system consisting of double-layer controller

A disk array and controller technology, applied in the direction of input/output to record carrier, etc., can solve problems such as low cost performance, high software and hardware costs, and affect system use, and achieve the effects of shortened time, convenient management, and cost reduction
CN102103468BActive Publication Date: 2013-03-20NO 15 INST OF CHINA ELECTRONICS TECH GRP
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
NO 15 INST OF CHINA ELECTRONICS TECH GRP
Publication Date
2013-03-20

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Abstract

The invention discloses a multi-disk-cabin hard disk array system consisting of a double-layer controller. The system comprises an RAID (Redundant Array of Independent Disk) main system and at least one RAID subsystem, wherein the RAID main system is connected with all RAID subsystems through hard disk interfaces; each RAID subsystem comprises at least one hard disk and a controller; the controller is used for managing the hard disk, protecting hard disk data and providing a virtual storage space for the RAID main system; the RAID main system comprises a controller for uniformly managing storage spaces, provided by all RAID subsystems, serving as independent hard disks; and different RAID levels are configured to provide storage spaces for a user. By adopting the multi-disk-cabin hard disk array system, the technical problems of long recovery time and influence on system usability, caused by the need of calculating relevant data of an entire hard disk array for data recovery when one hard disk or subsystem in the hard disk array system fails, in the prior art are solved, and the system is particularly suitable for storing mass data.
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Description

technical field

[0001] The invention relates to a disk array technology, in particular to a low-cost disk array technology with fast recovery, high availability and multiple disk warehouses. Background technique

[0002] With the rapid development of IT technology, storage technology has entered a stage of rapid development. The principle of Redundant Arrays of Inexpensive Disks (RAID) is to use the array method to make a disk group, and cooperate with the design of scattered data arrangement to improve data security. With the development of RAID, multiple levels such as RAID0, RAID1, RAID0+1, RAID1+0, RAID3, RAID5, RAID6, and RAID7 have appeared successively. Most of them use data redundancy mechanisms to protect data security and improve system performance.

[0003] At present, with the exponential growth of data, the disk array storage space has begun to develop to the PB level, and the massive data has brought many complicated problems. First, the recovery of massive d...

Claims

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