Debbie, In a message dated 10/27/99 12:51:20 PM Eastern Daylight Time, DHelms@Lance.com writes: > Tell me are there any real expert system tuners out there? Can a system be > tuned in a day at the very most a week? I need some system tuning > information where is the best place? Ooooooh, you're probably starting a religious discussion here, so let me start with _my_ doctrine <G>! They're out there but, apparently, none of them work for IBM anymore. Unless the IBM representative was John Sears or Frank Soltis himself walking through my door to tune the system, I'd be hard pressed not to toss them out on their ear then and there -- especially if they have no gray hairs. One of my current clients is running a _HUGE_ 640 that was tuned by IBM -- it runs like molasses flowing uphill. In January. In Alaska. In Point Bering, Alaska. Like molasses running uphill in Point Bering, Alaska in January on a particularly cold day. Like...well, you get the picture and it's not a pretty one. There is _ABSOLUTELY NO REASON_ that QPFRADJ should be set on for this machine, but it is at the insistence of the IBM "expert". Automatic performance adjustment practically shuts down the machine throughout the day to move memory into pools that only need it for about five minutes. A person that would be happy to wait for their job to finish causes all of those that aren't to call the help desk. The only reason that I haven't insisted on spending some time tuning the machine that it will soon be replaced. The only reason that I'm not insisting that they belay the replacement is that the new machine will run two locations that now have their own individual AS/400's and it's part of their IT strategy in order to consolidate production machines and hot sites. To answer your question, yes. A system can be tuned to be better in a day. A week would be more effective than a day (preferably during month end), but wouldn't require all day every day for a week if you have performance tools installed and a collection running frequently for that time (which in and of itself will degrade performance). Your best bet is to read _and understand_ the "Work Management Guide" if you want to do it yourself. Grasp how to gauge your workload, storage pools (both fixed and shared), DASD performance, and "whatever else ails you", and you might not need to pay some idiot high rates to tell you that your system is "performing to spec". Know your workload, know the "Work Management Guide", and _NO_ consulting dollars will be spent on performance tuning... Which raises a question for me personally that must have something to do with RISC processors but I've never encountered on another RISC. What would cause commands that work with jobs to perform _very_ slowly? WRKACTJOB isn't bad, nor is WRKUSRJOB, but WRKSBMJOB and WRKSBSJOB can take five minutes to come up. What's up with that? JMHO, Dean Asmussen Enterprise Systems Consulting, Inc. Fuquay-Varina, NC USA E-mail: DAsmussen@aol.com "The only stupid question is the one you were too proud to ask." -- Me +--- | This is the Midrange System Mailing List! | To submit a new message, send your mail to MIDRANGE-L@midrange.com. | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com. | To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com. | Questions should be directed to the list owner/operator: email@example.com +---
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