发明名称 |
System and method for handling files in a distributed data storage environment |
摘要 |
<p>A system and method for relating files in a distributed data storage environment is described that allows for positive identification of membership of a file within a group, even in a loosely coupled environment where files are not available for comparison in real time. In disclosed embodiments, base files of a client are stored on a server and are accompanied by tokens uniquely identifying the base files. The tokens are generated on the client and may be derived from the contents of the base file using a digital signature. Each file transmitted to the server is accompanied with a token. Incremental backups may be used, and may employ file differencing. Accordingly, sub-files related to the base files may be transmitted to the server for backup. The sub-files are related to their respective base files using the tokens and are cross-linked to the base files so that any sub-files can be retrieved together with the base file from which the sub-file was derived. <IMAGE></p> |
申请公布号 |
EP1152352(B1) |
申请公布日期 |
2009.11.11 |
申请号 |
EP20010000121 |
申请日期 |
2001.04.20 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CANNON, DAVID M.;DAWSON, COLIN S.;HAYE, MARK A.;SMITH, JAMES P. |
分类号 |
G06F17/30;G06F11/14 |
主分类号 |
G06F17/30 |
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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