- 专利标题: File system reorganization in the presence of inline compression
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申请号: US15664245申请日: 2017-07-31
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公开(公告)号: US11526469B1公开(公告)日: 2022-12-13
- 发明人: Alexander Mathews , Marc De Souter , Yining Si , Philippe Armangau , Ahsan Rashid , Pranit Sethi
- 申请人: EMC IP Holding Company LLC
- 申请人地址: US MA Hopkinton
- 专利权人: EMC IP Holding Company LLC
- 当前专利权人: EMC IP Holding Company LLC
- 当前专利权人地址: US MA Hopkinton
- 代理机构: Ryan, Mason & Lewis, LLP
- 主分类号: G06F16/17
- IPC分类号: G06F16/17 ; G06F16/13 ; G06F16/18
摘要:
A method for file system reorganization in the presence of inline compression includes obtaining a virtual block pointer for an original compressed segment to be reorganized, the original compressed segment comprising compressed allocation units of data stored in a storage system, wherein the virtual block pointer comprises an extent list identifying the compressed allocation units in the original compressed segment and a pointer to where the original compressed segment is stored; copying only the referenced compressed allocation units in the original compressed segment to a new compressed segment in a substantially contiguous manner; updating the extent list to identify the referenced compressed allocation units in the new compressed segment, and the pointer to where the new compressed segment is stored; and freeing the original compressed segment.
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