SQL Server Performance

% Disk Time

Discussion in 'Performance Tuning for Hardware Configurations' started by brimba, Mar 1, 2007.

  1. brimba New Member


    I have an array in my SAN that have high % disk time (avg 70 or so), but booth the avg. disk read queue length and the avg. disk write queue length are well below 1.

    What does this mean?
  2. joechang New Member

    % disk time has no relevence in servers (with SCSI/SAS/FC drives)
    disregard it

    i know some people say it should below xx
    but they do not know what they are talking about
    their experience is based on IDE/SATA drives
  3. brimba New Member

    Thank you
  4. satya Moderator

    Do you have any performance issues lately?

    Satya SKJ
    Microsoft SQL Server MVP
    Writer, Contributing Editor & Moderator
    This posting is provided AS IS with no rights for the sake of knowledge sharing. The greatest discovery of my generation is that a human being can alter his life by altering his attitudes of mind.

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