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Re: 10g to RAC - what to do to avoid data duplication ?

From: DA Morgan <>
Date: Sun, 29 Apr 2007 10:19:44 -0700
Message-ID: <>

Golan wrote:
>> Sybrand's advice is still good. If you are planning to go RAC then it
>> makes sense to choose a storage medium that is compatible with RAC from
>> the outset. There are a number of these now - RAW and ASM have both
>> already been mentioned, in addition there are a number of NFS based
>> solutions that are compatible and most likely Oracle's own cluster file
>> system will be available to you as well.
>> I would, however, strongly query whether moving to RAC will actually
>> happen. It sounds to me like a possible plan for later, rather than a
>> firm intent - I maybe misreading you. Choosing more expensive, or more
>> complicated, storage because you may do something at a later date seems
>> a little foolish to me. Similarly if you are going to go RAC for sure it
>> would likely make sense to do it at the start of the project, when you
>> have the downtime and testing associated with an upgrade project anyway,
>> rather than later when you will likely have to repeat most of the work,
>> but on a now live system.
>> --
>> Niall Litchfield
>> Oracle DBA

> Nial thanx for the answer.
> We are not expert in linux/unix environment and file systems.
> We followed this article to build a RAC:
> and we were going to believe that we should use ocfs2 file system and then
> must format the new file system.
> Using RAW or ASM for the standalone will let us avoid (clustering) to create
> other file systems and copy original database.
> Bye
> Golan

Be careful using VMWare. It isn't fully supported by Oracle. If you have a problem don't be surprised if they ask you to duplicate it in a non-virtual environment before they offer any help.

Daniel A. Morgan
University of Washington
(replace x with u to respond)
Puget Sound Oracle Users Group
Received on Sun Apr 29 2007 - 12:19:44 CDT

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