Apparatus for cooperative distributed task management in a storage subsystem with multiple controllers using cache locking
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United States of America Patent
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Apr 19, 2011
Grant Date -
May 7, 2009
app pub date -
Jan 5, 2009
filing date -
Feb 25, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides an apparatus for cooperative distributed task management in a storage subsystem with multiple controllers using cache locking. The present invention distributes a task across a set of controllers acting in a cooperative rather than a master/slave nature to perform discrete components of the subject task on an as-available basis. This minimizes the amount of time required to perform incidental data manipulation tasks, thus reducing the duration of instances of degraded system performance.
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