Invention Grant
- Patent Title: Storage system having RAID level changing function
- Patent Title (中): 存储系统具有RAID级别更改功能
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Application No.: US11971500Application Date: 2008-01-09
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Publication No.: US07827351B2Publication Date: 2010-11-02
- Inventor: Michio Suetsugu , Yoshinori Okami , Takao Sato
- Applicant: Michio Suetsugu , Yoshinori Okami , Takao Sato
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Brundidge & Stanger, P.C.
- Priority: JP2007-199087 20070731
- Main IPC: G06F12/16
- IPC: G06F12/16
Abstract:
A plurality of storage devices, provided in a storage system, comprise not less than two member storage devices, which are storage devices provided as members of a RAID group, and a spare storage device, which is not a member of the RAID group. A controller, provided in the storage system, uses the spare storage device to carry out the changing of the RAID level of the RAID group from a first RAID level to a second RAID level.
Public/Granted literature
- US20090037656A1 STORAGE SYSTEM HAVING RAID LEVEL CHANGING FUNCTION Public/Granted day:2009-02-05
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