发明授权
US07831764B2 Storage system having plural flash memory drives and method for controlling data storage
有权
具有多个闪存驱动器的存储系统和用于控制数据存储的方法
- 专利标题： Storage system having plural flash memory drives and method for controlling data storage
- 专利标题（中）： 具有多个闪存驱动器的存储系统和用于控制数据存储的方法
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申请号： US12007329申请日： 2008-01-09
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公开(公告)号： US07831764B2公开(公告)日： 2010-11-09
- 发明人: Akio Nakajima , Kentaro Shimada , Shuji Nakamura , Nagamasa Mizushima
- 申请人： Akio Nakajima , Kentaro Shimada , Shuji Nakamura , Nagamasa Mizushima
- 申请人地址： JP Tokyo
- 专利权人： Hitachi, Ltd
- 当前专利权人： Hitachi, Ltd
- 当前专利权人地址： JP Tokyo
- 代理机构： Foley & Lardner LLP
- 优先权： JP2007-037623 20070219
- 主分类号： G06F13/10
- IPC分类号： G06F13/10
摘要：
Provided is a storage system having a storage device including memory drives formed of the non-volatile memory, a group is constituted by the memory drives whose number is larger than the number of memory drives necessary to provide the memory capacity, the divided storage areas are managed in each of segments that includes at least one of the divided storage areas, the data storage area or the temporary storage area is allocated to the divided storage areas, upon receiving a data write request, the data storage area in which the write data is written and the segment are specified, the updated data is written in the temporary storage area included in the specified segment, the temporary storage area in which the data is written is set as a new data storage area, and data stored in the data storage area is erased and set as a new temporary storage area.