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Method for detecting problematic disk drives and disk channels in a RAID memory system based on command processing latency

  • US 20090106602A1
  • Filed: 10/17/2007
  • Published: 04/23/2009
  • Est. Priority Date: 10/17/2007
  • Status: Active Grant
First Claim
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1. ) A method for detecting problematic disk storage devices in an array of independent disk storage devices, comprising the steps of:

  • broadcasting a command set substantially simultaneously to a plurality of independent disk storage devices under study in the array thereof, acquiring a latency count of executing said command set by each of said plurality of independent disk storage devices, and identifying a respective one of said plurality of independent disk storage devices as a problematic disk storage device if said latency count thereof exceeds a predetermined latency value.

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