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Exch 5.5 server Store.Exe using 100% CPU

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5 replies

by axl

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Our systems suffered a power failure and upon restart went to 100% CPU usage. This has now gone on for over a week. We are at SP4 for Exchange 5.5 which is supposed to fix the problem. It has not. This server is pretty much unusable due to extreme CPU usage by STORE.EXE.
Any clues much appreciated.

5 replies

by fausto_oliveira2000

I think you have a virus the kind of symptons you describe are likely to be somekind of DenialOfService / Exploit that alowed an malicious attacker or script to implement a virus inside your exchange probably you are now a menace to others, do a antivirus (viruswall or PC-cillin) check using some recent antivirus to ensure that you don't have virus them give me a mail to fausto_oliveira2000@yahoo.com

by axl

Thank You, we have no virus, we use Virus Buster II and we are firewalled. Should have mentioned that.

by carsten.holfelder

I had the same problem and it was that the exchange databases went corrupt. The exchange still worked but at 100%. I fixed by using the eseutil. I did a repair on the three databases and then a defragment.

by axl

Thank You Carsten. I have tried the eseutil also, it's got to be a skill level thing though, the handful of commandline switches I tried caused it to think for about 10 seconds, then exit. It did not seem to repair anything.
I am thinking an option might be to log in as each mailbox owner, create a PST file for each, drag the mail across, then stop services and blow away the data directories , restart services. Will try this today.
BTW, this site has never had a backup of their exchange databases. Amazing.

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