RE: Performance issues moving from AS400 model 53S V3R7 to S3...

[Neil Palmer <npalmer@xxxxxxxxxxx>]

You haven't provided enough information to answer this properly.

What processor did you have in the 53S (2154/2155/2156/2157) ?
What processor do you have in the S30 (2257/2258/2259/2260) ?
How many disk arms, and what type, on the 53S ?
How many disk arms, and what type, on the S30 ?

Presumably it was a straight hardware upgrade/swap (ie. no new
applications added at the same time) ?
The processor could be 5,000 times faster, and it wouldn't help if your
applications were I/O bound (DASD utilization).

Something to check anyway:
Is the S30 on the latest PTF cum level (C8195420) and did you verify it
installed correctly and you're IPL'd from the 'B' side ?




Neil Palmer                                AS/400~~~~~      
NxTrend Technology - Canada   ____________          ___  ~     
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> -----Original Message-----
> From: SROACH@manus.com [SMTP:SROACH@manus.com]
> Sent: Friday, August 07, 1998 4:05 PM
> To:   MIDRANGE-L@midrange.com
> Subject:      Performance issues moving from AS400 model 53S V3R7 to
> S3...
> 
> Subject: Performance issues moving from AS400 model 53S V3R7 to S30
> V4R2 
> Hello all:
> 
> Has anyone made this upgrade in the last year?  We did, and we can
> hardly see an
> improvement at all.  We were running V3R7 on a 53S and upgraded to
> V4R2 on an
> S30, adding 40 more gigs of disk and twice the ram as before.  We were
> told the
> new processor was to be about 240 times faster, but it hardly seems 10
> times
> faster and indeed, some processes run slower than before.  We have had
> IBM in
> for the last two weeks running tests and analyzing the results and
> they say
> nothing appears to be wrong.  I just thought there might be someone
> else out
> there who made a comparable upgrade and might be able to tell me how
> much of a
> performance increase they saw.
> 
> Any info would be greatly appreciated.
> 
> Thanks,
> 
> Steve Roach
> Manus Direct
> Seattle, WA
> 
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