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02873 - 4.6C upgrade sizing
ABAP Short Reference PERFORM Short ReferenceThis documentation is copyright by SAP AG.
4.6C upgrade sizing
Ahem. Yes.The database leap was moderate: 11,8 % of 125 GByte.
Kind regards
Rudi
-----Ursprüngliche Nachricht-----
Von: Wiesmayr Rudolf
Gesendet: Dienstag, 7. August 2001 7:18
An: 'Squash'
Betreff: AW: 4.6C upgrade sizing
Hi Squash! Well again?
In preparation to going from 4.0b to 4.6c in our hospital
we made a HW upgrade from an S40 8-way with 8 GB main storage
to a 740 12-way with 12 GB main storage.
The SAP functional upgrade check session gave us a green light
for this configuration.
No IBMer made any objections about the new configuration.
"The day after" we saw a terrible increase in response times
and in DASD activity. Hard days for us!
Now we have 20 GB RAM and the system is running smoothly again.
I've talked to a person who works with a big business partner
in EMEA in spring and he told me that the CPU/RAM ratio of 1
is too low, it should be about 2 (i.e. 2 GB per processor).
Our case has proven his thumb rule.
Seems that there is more knowledge and experience about sizing
SAP iSeries servers outside IBM and SAP than inside.
HTH
Rudi
-----Ursprüngliche Nachricht-----
Von: Squash [mailto:realsquashZy...]
Gesendet: Montag, 6. August 2001 23:31
An: SAP AS/400 List
Betreff: 4.6C upgrade sizing
Generally, would anyone here have any idea how much more disk/RAM/CPU an
upgraded 4.0B system (to
4.6C) would take? We are running basically all modules except HR.
Not looking for anything concrete, just some rough numbers.
Thanks!
Andy
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