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For about 2hrs yesterday, a company I help out once and a while had
disk activity up around 90% busy...

Needless to say, this dragged down the entire system even though CPU
usage was only about 10%...

It seems as if the problem was from QZDASOINIT jobs servicing requests
from the Extranet web site...once all the active QZDASOINIT jobs
(about 13) were ended things went back to normal (ok they had to do 2
rounds of ending)

I don't see anything showing as taking longer then 45s in the SQL plan cache...

They had already ended the jobs before contacting me, so "last SQL
statement" was not an option.

PM/400 is running....and they have the performance tools licensed program...

Is there anything I can look at now to maybe figure out what happened?

Is there anything I can turn on and leave running in case it happens again?

Third party tools may be an option.

Thank you,
Charles

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