发明授权
US07979663B2 Storage apparatus having unused physical area autonomous management function
有权
具有未使用的物理区域自主管理功能的存储装置
- 专利标题： Storage apparatus having unused physical area autonomous management function
- 专利标题（中）： 具有未使用的物理区域自主管理功能的存储装置
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申请号： US12039777申请日： 2008-02-29
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公开(公告)号： US07979663B2公开(公告)日： 2011-07-12
- 发明人: Kazusa Tomonaga
- 申请人： Kazusa Tomonaga
- 申请人地址： JP Tokyo JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba,Toshiba Solutions Corporation
- 当前专利权人： Kabushiki Kaisha Toshiba,Toshiba Solutions Corporation
- 当前专利权人地址： JP Tokyo JP Tokyo
- 代理机构： Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- 优先权： JP2007-057531 20070307
- 主分类号： G06F12/06
- IPC分类号： G06F12/06 ; G06F12/02 ; G06F12/00
摘要：
A physical extent assurance unit manages correspondence of a logical disk accessed from a host computer with physical extents. A data pattern generation response unit generates a predetermined data pattern, and returns this data pattern in response to a data request from the host computer. A pattern matching unit checks the data pattern of a storage area every access to storage media or periodically. When the entire area of the assured physical extent defines the predetermined data pattern, the pattern matching unit deleted the logical disk allocation of the assured physical extent.
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