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  3. April 2006

Re: Slow AS400 performance

When I had a similarly described problem, it turned out to be the disk cache battery. There should be a way to find out in System Service Tools, but I'm not sure where; it's been quite awhile. 


        * Jerry C. Adams
*IBM System i Programmer/Analyst
B&W Wholesale Distributors, Inc.* *
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Condon, Mike wrote:


I am getting vague complaints from our users/developers that one of our
AS400's (a 270, v5r3) is "running slow".
I don't think it's a CPU problem, more like IO is getting thrashed. One Developer suggested that it may be QYIVRIPS. I did notice the 
message "Attempt to download a current phone list was unsuccessful." in
it's job log, but I'm not too excited over that. 
What tools/methods are there for determining who/what is thrashing the
IO on the machine? I'd rather start this way rather than calling IBM, telling the vaguely 
"our machine is running slow", and then imagining the IBM Tech's eye's
rolling back in his head upon hearing the question.

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