发明申请
- 专利标题： Controller, copy control method, and computer product
- 专利标题（中）： 控制器，复制控制方法和计算机产品
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申请号： US11394221申请日： 2006-03-31
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公开(公告)号： US20070143554A1公开(公告)日： 2007-06-21
- 发明人: Koji Uchida , Hideaki Omura , Tsutomu Akasaka
- 申请人： Koji Uchida , Hideaki Omura , Tsutomu Akasaka
- 申请人地址： JP Kawasaki
- 专利权人： FUJITSU LIMITED
- 当前专利权人： FUJITSU LIMITED
- 当前专利权人地址： JP Kawasaki
- 优先权： JP2005-365545 20051219
- 主分类号： G06F12/16
- IPC分类号： G06F12/16
摘要：
A disk array device includes a controller that sets a session pertaining to a copy source disk and a copy destination disk, and without copying the entire data that is recorded in the copy source disk to the copy destination disk, copies to the copy destination disk only the data that is recorded in a data space for writing. Further, if data for reading does not exist in the copy destination disk, the controller searches data from the copy source disk and transfers the searched data to a host computer.
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