0584804-A2 is referenced by 26 patents and cites 5 patents.

In a redundant array of disks, the disks are divided into areas of different sizes, so that small amounts of data can be stored in an area of an appropriate size on a single disk, instead of being spread over multiple disks. A usage status table indicates which areas are in use. Check information is generated and stored only for areas indicated to be in use. When new check information is generated, it is therefore possible to omit the reading of unnecessary old data and old check information. When a disk fails and is replaced with a standby disk, only the data in areas indicated to be in use are reconstructed. Check information can be stored on a solid-state disk.

Title
Redundant array of disks with improved storage and recovery speed.
Application Number
EP19930113563 19930825
Publication Number
0584804 (A2)
Application Date
August 25, 1993
Publication Date
March 2, 1994
Inventor
Ogura Shiro C O Mitsubishi Den
JP
Itoh Kazuhiko C O Mitsubishi D
JP
Baba Hiroshi C O Mitsubishi de
JP
Matsumoto Toshio C O Mitsubish
JP
Assignee
Mitsubishi Electric
JP
IPC
G11B 20/18
G06F 03/06
G11B 20/12
G11B 27/32
G11B 27/11
G11B 27/00
G11B 20/18
G11B 20/12
G11B 20/10
G06F 11/20
G06F 11/10
G06F 03/06
G11B 27/32
G11B 27/11
G11B 27/00
G11B 20/18
G11B 20/12
G11B 20/10
G06F 11/20
G06F 11/10
G06F 03/06
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