Invention Grant
- Patent Title: Space recovery for thin-provisioned storage volumes
- Patent Title (中): 精简配置存储卷的空间恢复
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Application No.: US12426224Application Date: 2009-04-18
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Publication No.: US08694563B1Publication Date: 2014-04-08
- Inventor: Douglas J. Cameron , Hueichian Huang
- Applicant: Douglas J. Cameron , Hueichian Huang
- Applicant Address: US TX Houston
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Houston
- Main IPC: G06F7/00
- IPC: G06F7/00 ; G06F17/30
Abstract:
Methods are provided to write zeroes to logical blocks of a thin-provisioned volume mapped to a deleted file or a dummy file in the host file system. This causes the thin-provisioned volume to map these logical blocks to a common storage space that contains all zeroes so that storage space previously mapped to these logical blocks is free to be reused.
Information query
