RE: Trying to understand an ASM discrepancy

From: William Wagman <>
Date: Thu, 3 Apr 2008 15:41:18 -0700
Message-ID: <>


I reinstalled the RPMs on the node in question and rebooted and now things are behaving as I expect. I have no idea what went wrong but all appears well now.


Bill Wagman
Univ. of California at Davis
IET Campus Data Center
(530) 754-6208

-----Original Message-----
From: Alex Gorbachev [] Sent: Wednesday, April 02, 2008 5:49 PM
To: William Wagman
Subject: Re: Trying to understand an ASM discrepancy

Did I understand you correctly - asm_diskgroup is empty on both nodes? If so, I think on node 1 you have some missing RPM's for ASMLib or something wrong with it so Oracle instance doesn't load ASMLib driver. Compare alert.log on both machines - it should mention loading ASMLib driver there if I recall correctly.

On a slightly different note - consider getting rid of ASMLib - is it worth the pain and adding another layer of complexity?

On 2-Apr-08, at 8:06 PM, William Wagman wrote:

> Greetings,
> I am looking at a two node rac cluster running on 32-bit RHEL4, oracle
> SE and am puzzled by a discrepancy in the description of
> the
> library and system as listed in the V$ASM_DISK view in the ASM
> instance.
> The ASM and RDBMS are installed in separate homes. On node 1 I see the
> following...
> .....
> As I understand it when the library is listed as system it means that
> the asm_diskstring parameter is not set correctly. The puzzling
> thing is
> that in the instance on each node it is set to null. The asm_diskgroup
> parameter is set the same on each node, 'ASMGRP1, ASMGRP2'. I don't
> understand what might have caused these to differ. If anyone can
> assist
> I would appreciate it.
> Thanks.
> Bill Wagman
> Univ. of California at Davis
> IET Campus Data Center
> (530) 754-6208
> --

Received on Thu Apr 03 2008 - 17:41:18 CDT

Original text of this message