Around 4:00 pm last night, as close as I can tell, I received a few
scattered reports that one of my Exchange servers was responding
veeeeeeeery slowly. I took a look and didn't immediately see anything
wrong -- My Outlook was responding normally. This morining the Helpdesk
got flooded with calls about slow response time.
I dug much deeper and didscovered that the disk containing the Information
Store was pegged at 100% utilization. Every 25 minutes or so the
utilization drops to about 10-20% for 2-3 minutes and then pegs again. I
have run a manual virus scan which turned up nothing, Checked the event
logs for maintenance processes still running and found nothing, rebooted
the server and the utilization returned to 100%, Stopped the event
service with no luck, stopped OWA with no luck. This is the first time in
5 years of running Exchange I have had something like this.
Exchange 5.5 SP3
Win NT 4.0 SP5
Compaq 3000 Dual 600 MHz processors
512 Mb ram
IS disk is raid 5 27 GB 25 GB used
Log disk is raid 1 8GB
CPU utilization is 15% average during peak usage
IS has 493 MB free space after online Defrag.
Thanks in advance for your great support.
Steve Sauer
Senior Systems Engineer
NCI Information Systems, inc - Enterprise Technology Solutions Group
WIPP Site, Carlsbad, NM
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