Invention Grant
- Patent Title: Deduplication of volume regions
- Patent Title (中): 重复数据删除卷区域
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Application No.: US14046876Application Date: 2013-10-04
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Publication No.: US09589008B2Publication Date: 2017-03-07
- Inventor: John Colgrove , Ethan Miller , John Hayes , Cary Sandvig , Christopher Golden , Jianting Cao
- Applicant: PURE Storage, INC.
- Applicant Address: US CA Mountain View
- Assignee: Pure Storage, Inc.
- Current Assignee: Pure Storage, Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Kennedy Lenart Spraggins LLP
- Agent Edward J. Lenart
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G06F17/30 ; G06F3/06 ; G06F12/08 ; G06F12/12
Abstract:
A system and method for performing coarse-grained deduplication of volume regions. A storage controller detects that a first region of a first volume is identical to a second region of a second volume, wherein the first volume points to a first medium and the second volume points to a second medium. In response to detecting the identical regions, the storage controller stores an indication that the first range of the first medium underlies the second range of the second medium. Also in response to detecting the identical regions, the mappings associated with the second range of the second medium are invalidated.
Public/Granted literature
- US20140195749A1 Deduplication of Volume Regions Public/Granted day:2014-07-10
Information query
