Re: lpar for p670

What version of AIX? If you are running 5.2 you need to check the small
real mode checkbox on the memory configuration screen. If not and you
have all 32gb of memory allocated, you have not taken into consideration
the overhead created by the service processor for LPAR operations such
as paging table. Drop both machine by 1gb or 2 and try again. Also, on
a P5 processor you can choose the boot mode from the HMC when you boot
forcing SMS.

Christopher Leven
Senior Programmer/Analyst
IBM Certified Specialist AIX Administration
IBM Certified Specialist AIX Support
IBM Certified Specialist PSSP

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Chris.leven@xxxxxxxxxxx

-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@xxxxxxxxxxxxx] On Behalf Of
N. Leenders
Sent: Wednesday, June 28, 2006 2:48 PM
To: aix-l@xxxxxxxxxxxxx
Subject: lpar for p670

Hi All,

I have a p670 attached to an HMC. We are running only one partition on
it, though I set up the machine with two almost identical partitions,
one
that goes into SMS and one that doesn't. I have noticed that the
partition
I created was only using 16GB of memory instead of the 32GB in the
machine, so from the HMC I tried up'ing the "desired" amount of memory.
As well, I tried to get it to boot from a partition that doesn't go
straight into SMS, but boots right into AIX. Then I started getting
this
error message: "No contiguous real mode memory (0x3) There was not
enough
real mode memory available to start one or more partitions. To correct
the problem " . . . and it goes on about how to bring up the partitions
in
a certain order.

I've since tried various variations, including what I thought were my
original settings, with no luck. Maybe I accidently changed something
else that is effecting the memory. Or could there be a problem with the

memory?

Do you have any ideas?
Thx, Nadine

Nadine Leenders
HPC System Administrator, Research Support
Academic Information and Communication Technologies
University of Alberta


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