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Critical Resource Management

  • US 20090193121A1
  • Filed: 10/24/2008
  • Published: 07/30/2009
  • Est. Priority Date: 01/29/2008
  • Status: Abandoned Application
First Claim
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1. A method of managing critical resource usage in a storage network comprising:

  • 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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