Method and apparatus for managing backup data
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United States of America Patent
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Mar 8, 2011
Grant Date -
Sep 1, 2005
app pub date -
Feb 4, 2005
filing date -
Feb 4, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and apparatus for managing backup data is disclosed. A data backup system defines a plurality of time windows for creating and maintaining backup data in accordance with a data backup policy. Each of the time windows is assigned a predetermined amount of storage space. When the data backup system creates backup data, the system determines whether a storage space assigned to a time window is large enough to accommodate new backup data. If the storage space is large enough, the new backup data is stored. However, if the storage space is not large enough, the system deletes the oldest backup data until enough storage space is obtained.
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