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ESE event 507-509

Posted on 2009-05-11
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Last Modified: 2013-11-14
I've been getting these errors periodically for the past few months. I'm trying to determine if there actually is a hardware issue because I have the option to upgrade the firmware for my RAID controller and I would rather not do this unless it is certain that these errors and other performance issues that have been occurring are related to the controller. Is there a diagnostics test or stress test that I can use in Server 2003 or Exchange that would do this?
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Question by:numb3rs1x
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by:djxtreme
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Ok,

What version of Exchange?
What configuration are your disks that your storage group databases are sat on (RAID level, amount of disks, etc)?

Why do you think firmware upgrade will resolve this? The errors are usually performance related, and/or failing hardware....?
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by:numb3rs1x
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Exchange 2003 on a Windows Server 2003

I have a 3ware RAID controller with a RAID 5 array with three disks.

I don't know that a firmware upgrade will fix it, which is why I would like to run some more intensive tests if it's possible before I try it. The errors are infrequent and inconsistent with the intermittent performance problems on the server, but it's the only clue I have as to why the mailstore sometimes slows way down. The only events at all that would be related point to hardware performance. I guess I'm trying to eliminate variables at this point.
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djxtreme earned 500 total points
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How many users do you have? Are they in online / cached mode.

Have you ran (and watched) a Perfmon, how high are your disk queues, and RPC connections?

There are some MS "Stress Test" tools for Exchange;

http://technet.microsoft.com/en-us/library/aa996076(EXCHG.65).aspx

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by:numb3rs1x
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I've done a lot of stress testing since you posted that. I noticed the disk containing exchange has compression enabled. I have since disabled it. Since the errors or so infrequent I now have to wait to see if they come back.
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