System and method for efficient cache management in a distributed file system
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United States of America Patent
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-
Sep 12, 2000
Grant Date -
N/A
app pub date -
Mar 7, 1994
filing date -
Mar 7, 1994
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A cache manager efficiently supporting both connected and disconnected client operation. A single integrated cache is maintained for file system data, status and pathname information. File system requests are satisfied by the cache if possible and passed to a remote file system for servicing if necessary. The cache manager is independent of operating system file syntax and distributed file system protocol. Disconnected operation is supported through an aggressive caching policy and by logging of file system modifications. Modification logs are created when the client is disconnected by logging objects that optimize the log as it is created. Cache file system objects can have multiple parents each with different naming syntax because the object name is not cached.
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