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10g to RAC - what to do to avoid data duplication ?
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DA Morgan  
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 More options May 2 2007, 11:35 am
Newsgroups: comp.databases.oracle.server
From: DA Morgan <damor...@psoug.org>
Date: Wed, 02 May 2007 08:35:39 -0700
Local: Wed, May 2 2007 11:35 am
Subject: Re: 10g to RAC - what to do to avoid data duplication ?
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pdxkev...@gmail.com wrote:
>> My question was do you have a link showing this in the Oracle docs
>> and showing that it is supported?

> A link to show ASM on NFS is supported?

A link showing that Oracle will support ASM installed on an NFS
mounted CFS rather than on RAW.
--
Daniel A. Morgan
University of Washington
damor...@x.washington.edu
(replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org

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Steve Howard  
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 More options May 2 2007, 11:37 am
Newsgroups: comp.databases.oracle.server
From: Steve Howard <stevedhow...@gmail.com>
Date: 2 May 2007 08:37:19 -0700
Local: Wed, May 2 2007 11:37 am
Subject: Re: 10g to RAC - what to do to avoid data duplication ?
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On May 2, 11:18 am, pdxkev...@gmail.com wrote:

> > My question was do you have a link showing this in the Oracle docs
> > and showing that it is supported?

> A link to show ASM on NFS is supported?

> > --
> > Daniel A. Morgan
> > University of Washington
> > damor...@x.washington.edu
> > (replace x with u to respond)
> > Puget Sound Oracle Users Groupwww.psoug.org

Whether it is supported or not, my question would be why would I want
to do this?  I assume you use losetup to create loopback devices on
NFS, for which you then create raw device mappings and pass to ASM?
What am I buying by doing this?  I know the benefits of ASM in regards
to failure groups, balancing, etc., as we use it pretty heavily, but
it is on EMC storage.

What am I getting by creating one layer of abstraction (NFS), another
layer with losetup for the loop devices, and then ASM on top of that?
That seems like a lot of things to break, or am I missing something??

Thanks,

Steve


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Cristian Cudizio  
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 More options May 2 2007, 11:55 am
Newsgroups: comp.databases.oracle.server
From: Cristian Cudizio <cristian.cudi...@yahoo.it>
Date: 2 May 2007 08:55:09 -0700
Local: Wed, May 2 2007 11:55 am
Subject: Re: 10g to RAC - what to do to avoid data duplication ?
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On May 2, 5:18 pm, pdxkev...@gmail.com wrote:

> > My question was do you have a link showing this in the Oracle docs
> > and showing that it is supported?

> A link to show ASM on NFS is supported?

> > --
> > Daniel A. Morgan
> > University of Washington
> > damor...@x.washington.edu
> > (replace x with u to respond)
> > Puget Sound Oracle Users Groupwww.psoug.org

i've not tested ASM on NFS but to me it seems a thing with not a lot
of sense.
I believe Daniel when says that performance will be glacial. i'm
curious to see where Oracle says that
such operation is supported and i'm waiting the link.

Bye
 Cristian Cudizio

http://oracledb.wordpress.com
http://cristiancudizio.wordpress.com


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DA Morgan  
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 More options May 2 2007, 3:26 pm
Newsgroups: comp.databases.oracle.server
From: DA Morgan <damor...@psoug.org>
Date: Wed, 02 May 2007 12:26:31 -0700
Local: Wed, May 2 2007 3:26 pm
Subject: Re: 10g to RAC - what to do to avoid data duplication ?
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I sure wouldn't. And having never tried it I'm not even sure it would
work. Nor have I found any evidence that it does. Thus my request for
the link.
--
Daniel A. Morgan
University of Washington
damor...@x.washington.edu
(replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org

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