Hi Kevin,
What does your disk configuration look like? The "rule of thumb" for average disk queue lengths is no more than 2 disk queue lengths per spindle. So, for example, on a 4 drive RAID array, anything more than 8 (2x4) disk queue lengths may indicate a problem.

Mike

At 11:03 PM 6/3/2006, you wrote:
The Avg Disk Queue Length regularly goes above 1000, but the Avg Disk Read Queue Length stays close to 0, as do most other physical disk and processor performance attributes. Is this the hold up for my server?
What could be causing it?

Thanks.


Darin Cox wrote:
Performance Monitor

Darin.


----- Original Message ----- From: "Kevin Rogers" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Saturday, June 03, 2006 7:02 PM
Subject: Re: [IMail Forum] new server, much slower


It goes back to 0, then back to 100.  How do I check for the avg?



Darrell ([EMAIL PROTECTED]) wrote:

% Processor is almost always very low.
Avg. Disk Queue Length seems to spike to 100 (or more) every few seconds
% Disk Time also spikes to 100 all the time

Does the disk queue length clear out quickly? Or does it generally stay high until it spikes back to 100? What does it indicate is the average?

Darrell
------------------------------------------------------------------------
Check out http://www.invariantsystems.com for utilities for Declude And Imail. IMail/Declude Overflow Queue Monitoring, SURBL/URI integration, MRTG Integration, and Log Parsers.



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