Invention Grant
US07975115B2 Method and apparatus for separating snapshot preserved and write data
有权
用于分离快照保留和写入数据的方法和装置
- Patent Title: Method and apparatus for separating snapshot preserved and write data
- Patent Title (中): 用于分离快照保留和写入数据的方法和装置
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Application No.: US11779965Application Date: 2007-07-19
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Publication No.: US07975115B2Publication Date: 2011-07-05
- Inventor: James George Wayda , Kent Lee , Ngoclan Thi Vu , Elizabeth G. Rodriguez
- Applicant: James George Wayda , Kent Lee , Ngoclan Thi Vu , Elizabeth G. Rodriguez
- Applicant Address: US CO Longmont
- Assignee: Dot Hill Systems Corporation
- Current Assignee: Dot Hill Systems Corporation
- Current Assignee Address: US CO Longmont
- Agent Thomas J. Lavan; Matthew R. Ellsworth
- Main IPC: G06F12/16
- IPC: G06F12/16
Abstract:
A method and device for managing snapshot data is provided. Snapshots may be created having a preserved data area and a write data area. The preserved data area is used to maintain snapshot data corresponding to the point-in-time when the snapshot was created while the write data area is used to facilitate host read/write access to the snapshot. By maintaining two separate areas, the snapshot can be written to without altering the point-in-time representation of the snapshot.
Public/Granted literature
- US20080256141A1 METHOD AND APPARATUS FOR SEPARATING SNAPSHOT PRESERVED AND WRITE DATA Public/Granted day:2008-10-16
Information query
