Storage management for fine grained tiered storage with thin provisioning
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United States of America Patent
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May 24, 2011
Grant Date -
N/A
app pub date -
Jun 27, 2007
filing date -
Jun 27, 2007
priority date (Note) -
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Abstract
A system for managing data includes providing at least one logical device having a table of information that maps sections of the logical device to sections of at least two storage areas. Characteristics of data associated with a one section of the logical device may be evaluated. The section of the data may moved between the at least two storage areas from a first location to a second location according to a policy and based on the characteristics of the data. A copy of the data may be retained in the first location and a list maintained that indentifies the copy of the data in the first location. The system provides for garbage collection processing for memory management.
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