Method and apparatus for creating redundancy array in disc RAID

A technology of redundant array of disks and disks, applied in the creation field of redundant arrays of disks RAID
CN101620518BActive Publication Date: 2011-06-29NEW H3C TECH CO LTD
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
NEW H3C TECH CO LTD
Publication Date
2011-06-29

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a method for creating redundancy array of disc RAID, comprising the following steps: a disc storage controller combines at least two small-volume discs into a virtual disc, creates RAID according to the virtual disc and a large-volume disc, strips the RAID and reads and writes data with the striped RAID. In the invention, when discs of different volumes are available, the small-volume discs are combined together to form the virtual disc for creating the RAID with the virtual disc and the large-volume disc, thereby increasing the use ratio of useful space of discs; besides, the usability of the whole RAID is not affected when two discs in different positions of the virtual disc are damaged.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of storage technology, in particular to a method and device for creating a redundant array of disks RAID. Background technique

[0002] RAID (Redundant Array of Inexpensive Disks, Redundant Array of Disks) is a high-performance, high-reliability storage technology that provides logical storage for application terminals or terminal clusters by combining a series of individual disks in different ways disk. Among them, the advantages of using RAID include: expanding disk capacity, improving disk read and write performance and data security.

[0003] Specifically, RAID technology has been widely used in various occasions of data storage, long-used RAID technology includes RAID0, RAID1, RAID5, RAID6, RAID10, etc.; wherein, RAID0 does not have redundancy capability, and RAID1 is not a complete disk array; However, RAID5, RAID6, and RAID10 are composed of multiple disks (for example, no less than 3 disks for RAID5 and RAID...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More