Confirmed divert bitmap to synchronize raid firmware operations with fast-path hardware I/O processing
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United States of America Patent
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Feb 2, 2016
Grant Date -
Dec 4, 2014
app pub date -
May 21, 2014
filing date -
Jun 3, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A storage controller system is provided for the monitoring of fast path processing of I/Os to a storage device where the storage controller system allows for processing of I/Os to be monitored through the use of counters in a storage controller based upon the type of I/O issued to the storage controller as well as the conditions associated with the I/O, while providing a bitmap and associated divert bits and counters to monitor the processing of the I/Os in the storage controller. Methods for monitoring the processing of I/Os issued to the storage controller are also provided where the processing of the I/Os is based upon the type fast path I/Os issued to the storage controller and the conditions associated with the issued I/Os while providing a bitmap and associated divert bits and counters to monitor the processing of the I/Os in the storage controller, are also disclosed.
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