Critical resource management
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United States of America Patent
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Apr 26, 2011
Grant Date -
Jul 24, 2008
app pub date -
Jan 19, 2007
filing date -
Jan 19, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
In one embodiment, a method of managing critical resource usage in a storage network comprises receiving, in a storage controller, an input/output operation from a host, wherein the input/output operation identifies a storage unit, placing the input/output operation in a waiting queue, determining a maximum queue depth for at least one critical resource in the storage network required to execute the input/output command against the storage unit, and blocking one or more subsequent input/output commands from the host for the storage unit when the wait queue for the critical resource exceeds the maximum queue depth.
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