RE: Filesystem for Archive logs in RAC

From: CRISLER, JON A <JC1706_at_att.com>
Date: Tue, 6 Sep 2011 16:02:02 +0000
Message-ID: <9F15274DDC89C24387BE933E68BE3FD30D24AA_at_MISOUT7MSGUSR9D.ITServices.sbc.com>

What you could do is use a Flash Recovery Area (FRA) in ASM, which will hold your archive logs, flash recovery logs etc. Also create a filesystem used for RMAN backup: this will only be mounted on one node at a time, but the disk will be defined so you can unmount it from node 1 and mount to node 2 and up as needed for recovery. This assumes you are using a non-cluster aware filesystem (not NFS, OCFS, Veritas Cluster File system etc.). If you are using a cluster-aware filesystem then go ahead and mount to all nodes if you want. Periodically you run a RMAN process to pick up new archive logs and write them to the filesystem, thus keeping your FRA cleaned up. If you are using tape backup directly to Oracle (like Netbackup with RMAN api) then this may not apply.

-----Original Message-----
From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Jared Still Sent: Sunday, September 04, 2011 12:31 PM To: robert.hanuschke_at_googlemail.com
Cc: oracle-l_at_freelists.org
Subject: Re: Filesystem for Archive logs in RAC

On Wed, Aug 31, 2011 at 11:48 PM, Robert Hanuschke < robert.hanuschke_at_googlemail.com> wrote:
> Hi,
>
> unfortunately, the bit about ACFS to store archive logs is not true.
> Oracle does not support that. No file that can directly be stored in
> ASM is supported on ACFS. That affects this list:
>
> http://download.oracle.com/docs/cd/E14072_01/server.112/e10500/asmfiles.htm#g1030822
> which also includes archive logs.
>
>

The bit you are referring to is found here:

http://download.oracle.com/docs/cd/E14072_01/server.112/e10500/asmfilesystem.htm#CACJFGCD

Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist Oracle Blog: http://jkstill.blogspot.com Home Page: http://jaredstill.com

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Received on Tue Sep 06 2011 - 11:02:02 CDT