发明授权
- 专利标题： Efficient garbage collection in a data storage device
- 专利标题（中）： 数据存储设备中高效的垃圾回收
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申请号： US13771913申请日： 2013-02-20
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公开(公告)号： US08898410B1公开(公告)日： 2014-11-25
- 发明人: Daniel Ari Ehrenberg
- 申请人： Daniel Ari Ehrenberg
- 申请人地址： US CA Mountain View
- 专利权人： Google Inc.
- 当前专利权人： Google Inc.
- 当前专利权人地址： US CA Mountain View
- 代理机构： Brake Hughes Bellermann LLP
- 主分类号： G06F12/00
- IPC分类号： G06F12/00 ; G06F12/02
摘要：
A method includes determining which of a plurality of blocks of data in a data storage device having a plurality of memory devices to copy during garbage collection using a cost function based on a number of free pages and a number of replicated pages in each of the blocks, where the replicated pages include replicated data that is a copy of data stored in another storage device and determining not to copy one or more of the blocks of data during garbage collection based on the cost function.
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