RE: Re: Is anyone using Cluster file system using OCFS for Linux for Oracle Cluster Registry and CRS voting disk?

From: Rognes, Sten <Sten.Rognes_at_schwab.com>
Date: Fri, 27 Aug 2004 12:14:55 -0700
Message-ID: <4BD75994A2DEC542AD401194FE45E62E027D73FA@n1021smx.nt.schwab.com>

>> 1) The prohibition of using OCFS for the oracle binary tree as of the
>> apparently latest installation documentation causes me to be skeptical of
>> OCFS in general.

I believe that the reason for not locating "regular files" such as you $ORACLE_BASE and $ORACLE_HOME trees on OCFS stems from the fact that when the database opens a file on OCFS it uses the o_direct flag. When a file is opened with o_direct regular file access is not permitted. You might want to take a look at patches 2883583 and 2913284. These contain o_direct enabled file utilities like dd, cp, tar etc.

If you're not doing a production implementation, you might want to take a look at the OCFS2 Beta4, it's available from http://oss.oracle.com/projects/ocfs2/
The new version offers a lot more flexibility management wise than the previous version.

You might also want to take a look at Polyserve as an alternative to OCFS. I've been quite impressed with their CFS.

Sten

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Received on Fri Aug 27 2004 - 15:34:08 CDT