We have today 4 nodes cluster running AIX, HACMP 5.2 and Oracle 9RAC. Now we
have about 30 instances on each of the servers (total of 30 databases).
I am thinking abot taking one of the databases out and move it into a 5.
server outside the cluster - as a standalone machine. Because of lots of
admin work in extending tablespaces, I would like to run the new server with
Oracle10G and GPFS. But I have no clue of how much capasity we need in the
future for this database, so my idea is to start with GPFS at once on one
node (supported by IBM.), and then in the future, just buy one more node and
then extend the cluster via Oracle. (In Oracle10 we don't need HACMP
anymore, this is built inside Oracle sw.)

So to my question: Is there anybody done something like this? Or is my idea
kind of stupid? Let me hear!

TIA!

Arne S

ArneS wrote:
> We have today 4 nodes cluster running AIX, HACMP 5.2 and Oracle 9RAC. Now we
> have about 30 instances on each of the servers (total of 30 databases).
> I am thinking abot taking one of the databases out and move it into a 5.
> server outside the cluster - as a standalone machine. Because of lots of
> admin work in extending tablespaces, I would like to run the new server with
> Oracle10G and GPFS. But I have no clue of how much capasity we need in the
> future for this database, so my idea is to start with GPFS at once on one
> node (supported by IBM.), and then in the future, just buy one more node and
> then extend the cluster via Oracle. (In Oracle10 we don't need HACMP
> anymore, this is built inside Oracle sw.)
>
> So to my question: Is there anybody done something like this? Or is my idea
> kind of stupid? Let me hear!
>
> TIA!
>
> Arne S

What you have written strikes me as a frightening nightmare. Who
doesn't like you? ;-)

I'd suggest taking a couple of machines out of the cluster. Dumping
HACMP and using Oracle 10gR2 RAC for clustering. Consolidate the
entire thing down to a single database (or perhaps 2 or 3). It works
very well.
--
Daniel A. Morgan
http://www.psoug.org
damorgan@x.washington.edu
(replace x with u to respond)