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  2. MIDRANGE-L
  3. June 2005

Re: Strange Performance Problems

Once a long time ago I lost "cache" on the CPU and had a heck of a time finding the error message. In more recent times, I find performance problems after an IPL. This turns out to be the Raid5 Controller's Cache Battery finally went bad. If you haven't checked WRKPRB, try a WRKDSKSTS and then F11. If status is Active....nevermind, If it says Degraded... write caching has been disabled. get the $35 battery replaced. 



Mike Wills wrote:


I hope I can get you accurate information here.
We have an LPARed 810 (we have 66% of the CPU) and just recently started to notice some slow down. Last Thursday a job that normally takes 15 minutes, took 4 hours. Friday and Wednesday (without any changes in between) ran normally.Now this last weekend, we did a test upgrade of our ERP software and many of the jobs are now taking about twice the time. Here are some stats on this:

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