Exchange 2007 Average Disk Queue Length

dross333 used Ask the Experts™

Starting earlier today, we noticed a slow down in our Exchange server.  The slow down was both was mail, and connecting to the server.  After pulling the performance monitors, we see Avg. Disk queue length and page/sec pegged at 100.  Any suggestions where I can begin to look?

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Start--> Run --> ExBPA --> Health Check
You might also want to perform some hard disk and array checking on that server to see if one if the drives is faulty.

See if the server is doing excessive logging (normally caused by file level AV software scanning exchange database and log files)
Viral RathodConsultant

I agree with MegaNuk3, you need to run hardware diagnostic on storage environment and need to update the drivers and firmware of your storage environment ,also run chkdsk on Readonly mode on drive and make sure the drive is clean.

Also do the above steps suggested by MegaNuk3.


Thanks for the response

Thanks for the points, did you solve the problem?

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