System and method for maintaining consistent points in file systems using a prime dependency list
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United States of America Patent
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Jun 12, 2018
Issued Date -
Oct 4, 2012
app pub date -
Mar 31, 2011
filing date -
Mar 31, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
According to one embodiment, a request is received for obtaining a consistent point of data stored in a file system of a storage system having a plurality of storage units. In response to the request, retrieving a prime dependency list from a first prime segment stored in a first of the storage units, where the prime dependency list includes information identifying at least a second prime segment stored in a second of the storage units. The first and second prime segments collectively form a prime segment representing a consistent view of the file system. Each of the prime segments listed in the prime dependency list is ascertained in an attempt to generate the consistent point of data.
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