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I tend not to use it. Typically ( not always ) the guested partition has a
dev/test use and we may not want it up all the time or competing for
resources during an IPL of the production partition(s).

I also don't set my Managed System to power off when the last partition
goes down. This saves me lots of time if I have all the other LPARs down and
am dealing with just one going up and down as it doesn't have to
re-initialize all the HW eetc.

On Wed, Mar 3, 2010 at 6:57 AM, <rob@xxxxxxxxx> wrote:

Does anyone follow the dedicated controlling lpar when using guested
partitions on 6.1 with power 6 hardware?
Back on power 4 best practices pushed this. And I think it was so that if
you had to IPL EastCoast and that was your controlling partition you'd end
up dropping WestCoast also. However if you had Control, EastCoast and
WestCoast you could IPL EastCoast to your hearts content with no adverse
effects on WestCoast.

We don't follow this. However on one box MAIL3 hosts GDI and GDWEB3. GDI
is a test lpar and I have permission to IPL that on a whim so losing GDI
when IPLing MAIL3 is no skin off of my teeth. GDWEB3 is one of three
Domino clustered servers in our DMZ so I can rely on the other two to pull
their weight if I have to power off GDWEB3 to IPL MAIL3.

The other lpar, on a different box, that is a host, hosts GDWEB2. Again,
one of three Domino clustered servers in our DMZ. As long as I don't
bring down two GDWEB* lpars at the same time, (thus leaving the remaining
one flying solo), then it's no biggie.


Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com

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