RE: stale ASM alert logs

From: Herring Dave - dherri <>
Date: Sun, 19 Aug 2012 19:19:20 +0000
Message-ID: <>

You could try performing an operation that writes a message to the alert log. Issue a rebalance operation on a diskgroup and if you don't want that to continue issue it again with "power 0", which will stop the operation. Both commands will get logged to ASM's alert log, along with other ARB status info.

I know there are other commands that may be "safer" to run against production but I can't think of any at the moment, at least for ASM. There are packages to write to the alert log but obviously they don't exist for ASM.

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From: [] On Behalf Of Walker, Jed S Sent: Wednesday, August 15, 2012 2:16 PM To: Guillermo Alan Bort; Subject: RE: stale ASM alert logs

Good thinking but that isn't it. I did "show parameter background" and it is the directory I'm checking in. It doesn't appear the instance itself thinks it is somewhere else. Anyone have other ideas?

SQL> show parameter background

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
background_core_dump                 string      partial
background_dump_dest                 string      /oracle/grid/diag/asm/+asm/+AS
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release - 64bit Production With the Real Application Clusters and Automatic Storage Management options
(oracle) node-01:+ASM1:/home/oracle

->cd /oracle/grid/diag/asm/+asm/+ASM1/trace
(oracle) node-01:+ASM1:/oracle/grid/diag/asm/+asm/+ASM1/trace
->ll -rt

total 512
-rw-r----- 1 oracle dba 479574 May 11 05:26 alert_+ASM1.log
-rw-r----- 1 oracle dba   1302 Jul 20 17:07 +ASM1_rbal_27847.trm
-rw-r----- 1 oracle dba  21185 Jul 20 17:07 +ASM1_rbal_27847.trc
-rw-r----- 1 oracle dba     71 Jul 25 16:10 +ASM1_lmon_27827.trm
-rw-r----- 1 oracle dba    934 Jul 25 16:10 +ASM1_lmon_27827.trc

From: [] On Behalf Of Guillermo Alan Bort Sent: Wednesday, August 15, 2012 12:38 PM To: Walker, Jed S
Subject: Re: stale ASM alert logs

have you checked the background_dump_dest parameter in the ASM instance? are you sure you are looking at the correct alert log? sometimes I've seen ASM loosing the pfile and going back to default configs, which include the alert log location.



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Received on Sun Aug 19 2012 - 14:19:20 CDT

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