Invention Grant
US08386707B2 Virtual disk management program, storage device management program, multinode storage system, and virtual disk managing method
失效
虚拟磁盘管理程序，存储设备管理程序，多节点存储系统和虚拟磁盘管理方法
- Patent Title: Virtual disk management program, storage device management program, multinode storage system, and virtual disk managing method
- Patent Title (中): 虚拟磁盘管理程序，存储设备管理程序，多节点存储系统和虚拟磁盘管理方法
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Application No.: US12502752Application Date: 2009-07-14
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Publication No.: US08386707B2Publication Date: 2013-02-26
- Inventor: Yasuo Noguchi , Kazutaka Ogihara , Masahisa Tamura , Yoshihiro Tsuchiya , Tetsutaro Maruyama , Takashi Watanabe , Tatsuo Kumano , Kazuichi Oe
- Applicant: Yasuo Noguchi , Kazutaka Ogihara , Masahisa Tamura , Yoshihiro Tsuchiya , Tetsutaro Maruyama , Takashi Watanabe , Tatsuo Kumano , Kazuichi Oe
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Greer, Burns & Crain, Ltd.
- Priority: JP2008-211544 20080820; JP2009-132712 20090602
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F13/00
Abstract:
In a multinode storage system, a virtual disk associated with a storage device to be connected is created, and a slice of a connected storage device is allocated to one segment of the virtual disk. Next, one slice of data in the storage device to be connected is copied to the connected storage device. The rest of the data in the storage device to be connected is divided into slices, which are allocated to segments of the virtual disk. Then, metadata of the rest of the slices is written into a management information area in which copying of the data therefrom has been completed.
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