Others have addressed the performance issues.
What about the admin issues?
If consolidate to a single server, consider a separate
ORACLE_HOME for each database. You may need
to apply different patches to fix different problems in
various databases.
You have this ability now, but will lose it if you consolidate
without separate ORACLE_HOME's.
Something else you will lose is the ability to reboot the
server if needed for a single database.
Since you may be moving to a 15k, investigate server
partitioning to retain this functionality.
Jared
"Miller, Jay" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
10/09/2002 11:53 AM
Please respond to ORACLE-L
To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>
cc:
Subject: Advice needed on move to Sun 15K (losing spindles)
Our CIO has suggested that we get a Sun 15K to house all of our
databases. This has some advantages (communication between the various
boxes would be much faster) but I have some performance concerns.
Specifically, our main OLTP database would go down from 18 spindles to 8
spindles. Mirroring will take away 4 of those leaving 4 spindles. The
vendor (Sun) was recommending striping across all 4 spindles. He said we
don't need to worry about i/o issues because there will be a large cache.
I'm skeptical and argued for cutting them in half (striping 2 and 2). We
could then at least seperate the redo logs from the datafiles (probably
putting them with the oracle executables and some other files).
The Sun rep kept talking up how much more powerful the CPUs were and I
kept
saying, "but we're not CPU bound, we don't need any more CPU".
If anyone can either
a) tell me I'm worrying for nothing
b) recommend a better way to stripe/distribute my files
c) provide references or experience to show this is a bad idea
I'd really appreciate it.
Thanks,
Jay Miller
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