Optimizing a storage system to support short data lifetimes
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United States of America Patent
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Jun 7, 2011
Grant Date -
Apr 6, 2006
app pub date -
Sep 17, 2004
filing date -
Sep 17, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system and method for optimizing a storage system to support short data object lifetimes and highly utilized storage space are provided. With the system and method, data objects are clustered based on when they are anticipated to be deleted. When an application stores data, the application provides an indicator of the expected lifetime of the data, which may be a retention value, a relative priority of the data object, or the like. Data objects having similar expected lifetimes are clustered together in common data structures so that clusters of objects may be deleted efficiently in a single operation. Expected lifetimes may be changed by applications automatically. The system automatically determines how to handle these changes in expected lifetime using one or more of copying the data object, reclassifying the container in which the data object is held, and ignoring the change in expected lifetime for a time to investigate further changes in expected lifetime of other data objects.
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