发明名称 |
ACCESSING SNAPSHOTS OF A TIME BASED FILE SYSTEM |
摘要 |
A file system driver stored in a computational device receives a request to provide access to a snapshot of a rewritable file system at a selected point in time, wherein a plurality of tokens corresponding to a plurality of data units are stored in the rewritable file system, and wherein an ordering relationship is maintained among the plurality of tokens. The file system driver determines a token corresponding to the selected point in time based on the ordering relationship. A virtual subdirectory name is generated corresponding to the determined token. A virtual subdirectory is created with the generated virtual subdirectory name, wherein the virtual subdirectory is a subdirectory of a root directory. The snapshot is accessed via the subdirectory.
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申请公布号 |
US2013018931(A1) |
申请公布日期 |
2013.01.17 |
申请号 |
US201213617561 |
申请日期 |
2012.09.14 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION;BOYD KENNETH WAYNE;DAY, III KENNTH FAIRCLOUGH;DEWEY DOUGLAS WILLIAM;O'TOOLE CHRISTOPHER DIEBOLD |
发明人 |
BOYD KENNETH WAYNE;DAY, III KENNTH FAIRCLOUGH;DEWEY DOUGLAS WILLIAM;O'TOOLE CHRISTOPHER DIEBOLD |
分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
代理机构 |
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代理人 |
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地址 |
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