发明申请
US20090216986A1 APPARATUS AND METHOD FOR MANAGING LOGICAL VOLUME IN DISTRIBUTED STORAGE SYSTEMS
有权
用于管理分布式存储系统中的逻辑卷的装置和方法
- 专利标题： APPARATUS AND METHOD FOR MANAGING LOGICAL VOLUME IN DISTRIBUTED STORAGE SYSTEMS
- 专利标题（中）： 用于管理分布式存储系统中的逻辑卷的装置和方法
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申请号： US12390135申请日： 2009-02-20
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公开(公告)号： US20090216986A1公开(公告)日： 2009-08-27
- 发明人: Hideki Sakurai , Yasuo Noguchi
- 申请人： Hideki Sakurai , Yasuo Noguchi
- 申请人地址： JP Kawasaki-shi
- 专利权人： FUJITSU LIMITED
- 当前专利权人： FUJITSU LIMITED
- 当前专利权人地址： JP Kawasaki-shi
- 优先权： JP2008-43134 20080225
- 主分类号： G06F12/02
- IPC分类号： G06F12/02 ; G06F12/00
摘要：
A logical volume management apparatus includes a first storage unit that stores configuration information on a first stage logical volume, and a second storage unit that stores configuration information on a second stage logical volume. An access unit finds a storage area in the second stage logical volume that corresponds to the first stage logical volume, and accesses a storage area in a storage device that corresponds to the determined storage area. A logical volume generation unit generates a new second stage logical volume, and a storage area extension unit extends a storage area of the first stage logical volume stored in the configuration information on the first stage logical volume to a desired storage capacity, and makes the new second stage logical volume generated by the logical volume generation unit correspond to the first stage logical volume.
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