SQL Server Performance Forum – Threads Archive

% Disk Time

Hello! 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?

% 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

Thank you

Do you have any performance issues lately? Satya SKJ
Microsoft SQL Server MVP
Writer, Contributing Editor & Moderator
http://www.SQL-Server-Performance.Com
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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