发明名称 |
Archiving de-duplicated data on tape storage media using graph partitions |
摘要 |
Embodiments of the invention relate to data archiving on storage medium such as magnetic tapes based on graph partitioning. One aspect of the invention concerns a method that comprises representing a file system as a graph where each node of the graph represents a file and each edge represents file chunks common to the files corresponding to the nodes connected by the edge. The graph is repeatedly partitioned into disjoint sub-graphs. If the files and duplicate file chunks associated with a sub-graph fit into a data storage medium, then the files and duplicate file chunks are stored in the medium. Otherwise, the method may partition the sub-graph into smaller disjoint sub-graphs taking into consideration of degrees of connectivity of the nodes.
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申请公布号 |
US8538929(B2) |
申请公布日期 |
2013.09.17 |
申请号 |
US201113178487 |
申请日期 |
2011.07.07 |
申请人 |
CONSTANTINESCU CORNELIU MIHAIL;RICHMOND MICHAEL ANTHONY;INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CONSTANTINESCU CORNELIU MIHAIL;RICHMOND MICHAEL ANTHONY |
分类号 |
G06F7/00;G06F17/30 |
主分类号 |
G06F7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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