Invention Grant
US07992035B2 Disk selection method, raid control device, raid system, and its disk device
有权
磁盘选择方式，RAID控制装置，RAID系统及其磁盘设备
- Patent Title: Disk selection method, raid control device, raid system, and its disk device
- Patent Title (中): 磁盘选择方式，RAID控制装置，RAID系统及其磁盘设备
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Application No.: US11828643Application Date: 2007-07-26
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Publication No.: US07992035B2Publication Date: 2011-08-02
- Inventor: Hidejiro Daikokuya , Mikio Ito , Kazuhiko Ikeuchi
- Applicant: Hidejiro Daikokuya , Mikio Ito , Kazuhiko Ikeuchi
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Fujitsu Patent Center
- Main IPC: G06F11/00
- IPC: G06F11/00
Abstract:
A response of a disk device during rebuild can be sped up. A disk array control device determines whether or not there is a normal read request during rebuild. If there is a read request during rebuild, data is read by sequentially switching a plurality of disk devices in a certain block size unit lower than a block size in which each disk device reads data during normal read.
Public/Granted literature
- US20080010505A1 DISK SELECTION METHOD, RAID CONTROL DEVICE, RAID SYSTEM, AND ITS DISK DEVICE Public/Granted day:2008-01-10
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