Invention Grant
- Patent Title: Method for cleaning a delta storage system
- Patent Title (中): 清洁增量存储系统的方法
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Application No.: US13495893Application Date: 2012-06-13
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Publication No.: US08972672B1Publication Date: 2015-03-03
- Inventor: Grant R. Wallace , Philip N. Shilane
- Applicant: Grant R. Wallace , Philip N. Shilane
- Applicant Address: US MA Hopkinton
- Assignee: EMC Corporation
- Current Assignee: EMC Corporation
- Current Assignee Address: US MA Hopkinton
- Agency: Blakely, Sokoloff, Taylor & Zafman, LLP
- Main IPC: G06F12/00
- IPC: G06F12/00
Abstract:
A computer-implemented method and system for performing garbage collection in a delta compressed data storage system selects a file recipe to traverse to identify live data chunks and selects a chunk identifier from the file recipe. The chunk identifier is added to a set of live data chunks. Delta references in the file metadata corresponding to the chunk identifier are added to the set of live data chunks. Data chunks in a data storage system not identified by the set of live data chunks are then discarded.
Information query
