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Storage system and method of executing commands by controller

  • US 8,694,741 B2
  • Filed: 08/02/2012
  • Issued: 04/08/2014
  • Est. Priority Date: 07/23/2008
  • Status: Active Grant
First Claim
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1. A storage system, comprising:

  • a plurality of storage devices; and

    a controller configured to add each non-priority command received for the storage devices to a non-priority command queue, execute each priority command received for the storage devices during a predetermined time period until a quantity of priority commands executed during the predetermined time period reaches a predetermined value, and, upon the quantity of priority commands executed during the predetermined time period reaching the predetermined value, adding each priority command received for the storage devices during the duration of the predetermined time period to the non-priority command queue and sequentially dequeueing and executing commands from the non-priority command queue for the duration of the predetermined time period.

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