RE: Multiple ASM instances on the same box
- From: "Bobak, Mark" <Mark.Bobak@xxxxxxxxxxxx>
- To: Martin Berger <martin.a.berger@xxxxxxxxx>
- Date: Fri, 20 Nov 2009 16:40:16 -0500
Hi Martin,
I stand corrected.
I think what I was (incorrectly) remembering, was actually the case where you
run two ASM instances on the same server, from the same ORACLE_HOME. In that
case, you need to set one ORACLE_SID to something other than '+ASM', and
there's an undocumented parameter that you set on the database looking for ASM
storage, that tells it, "don't use '+ASM' for the ASM instance name, use this
other name instead". I don't remember the name of the undocumented
parameter....but that's what I was thinking of.
But, bottom line, ASM and clusterware are both backward compatible, so, I stand
by my comment that I can't really think of any reason you'd want to run more
than one ASM (or more than one clusterware, if it's RAC) on the same server.
It all comes back to the KISS philosophy....(keep it simple....)
-Mark
-----Original Message-----
From: Martin Berger [mailto:martin.a.berger@xxxxxxxxx]
Sent: Friday, November 20, 2009 3:43 PM
To: Bobak, Mark
Cc: ksmadduri@xxxxxxxxx; oracle Freelists
Subject: Re: Multiple ASM instances on the same box
Mark,
I'm sure, it IS supported, as long as you do not run in a cluster.
and there are no undocummented parameters. just use unique
DB_UNIQUE_NAME to avoid ORA-15150.
(just to clarify)
but I'm with you, I will NOT recommend more than 1 ASM on a node.
br
Martin
Am 20.11.2009 um 17:43 schrieb Bobak, Mark:
> It is possible, but not supported. There are some undocumented
> parameters involved. But, you shouldn't have to. Both clusterware and
> ASM are backward compatible. Just run 11g clusterware and 11g ASM, and
> you should be fine running 10gR2 and 11g databases. And, it's fully
> supported.
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