Re: Auto Tuning

["Clare Holtham" <Clare.Holtham@xxxxxxxxxxxxxx>]

Ken,

I think it's just one of those things like having the QINTER timeslice set
to a value more appropriate for a B10, that IBM never gets round to fixing!
And it's why you should, in my opinion, turn off automatic tuning and tune
the system yourself. This is especially true if your applications use SQL!

cheers,

Clare

----- Original Message -----
From: "Graap, Ken" <keg@xxxxxxxxxxxxx>
To: "'Midrange'" <midrange-l@xxxxxxxxxxxx>
Sent: Monday, February 02, 2004 11:37 PM
Subject: Auto Tuning


> I've always noticed that the Auto Tuning function of OS/400...
>
> System value . . . . . :   QPFRADJ
>
> Description  . . . . . :   Performance adjustment
>
>
>
>
>
> Performance adjustment . . . :   3          0=No adjustment
>
>
> 1=Adjustment at IPL
>
> 2=Adjustment at IPL and automatic
>
> adjustment
>
3=Automatic
> adjustment
>
>
>
> .. never lowers the activity level (MAX Active from WRKSYSSTS) for a
storage
> pool, it just raises them slowly over time.
>
> Does anyone know why this is?
>
> Kenneth
>
> ****************************************
> Kenneth E. Graap
> IBM Certified Specialist
> AS/400e Professional System Administrator
> NW Natural (Gas Services)
> keg@xxxxxxxxxxxxx
> Phone: 503-226-4211 x5537
> FAX:    603-849-0591
> ****************************************
>
>
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