发明授权
US09563633B1 Trimming unused blocks from a versioned image backup of a source storage that is stored in a sparse storage
有权
从存储在稀疏存储中的源存储的版本化映像备份中修剪未使用的块
- 专利标题： Trimming unused blocks from a versioned image backup of a source storage that is stored in a sparse storage
- 专利标题（中）： 从存储在稀疏存储中的源存储的版本化映像备份中修剪未使用的块
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申请号： US15085743申请日： 2016-03-30
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公开(公告)号： US09563633B1公开(公告)日： 2017-02-07
- 发明人: Nathan S. Bushman , Thomas Frank Christensen , David Merrill McConkie, Jr.
- 申请人： STORAGECRAFT TECHNOLOGY CORPORATION
- 申请人地址： US UT Draper
- 专利权人： STORAGECRAFT TECHNOLOGY CORPORATION
- 当前专利权人： STORAGECRAFT TECHNOLOGY CORPORATION
- 当前专利权人地址： US UT Draper
- 代理机构： Maschoff Brennan
- 主分类号： G06F3/06
- IPC分类号： G06F3/06 ; G06F17/30
摘要：
Trimming unused blocks from a versioned image backup of a source storage that is stored in a sparse storage. In one example embodiment, a method may include identifying a versioned image backup of a source storage that is stored in a sparse storage. The method may further include deleting the first version of the versioned image backup from the sparse storage during a retention process, identifying a first set of blocks, identifying a second set of blocks, determining a third set of blocks that are included in the second set of blocks but are not included in the first set of blocks, and, after the retention process, trimming the third set of blocks from the second version of the versioned image backup that is stored in the sparse storage.
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