RE: ASM - hardware mirroring vs. Oracle mirroring

In the spirit of "not because I should, but because I could", I suppose you could use a named pipe (unix) and dbms_file_transfer to move that from ASM to Tape and could, for good measure, to justify this cumbersome method, throw in compress/gzip in the pipeline.  

-Krish  

From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Finn Jorgensen
Sent: Tuesday, April 15, 2008 9:01 AM
To: paul.baumgartel_at_credit-suisse.com
Cc: Don Seiler; Jared Still; oracle-l_at_freelists.org Subject: Re: ASM - hardware mirroring vs. Oracle mirroring  

Here's a problem I ran into with ASM a while back.  

I was exporting large partitions as a means of backing them up for historical purposes and the intent was to put them on tape. Unfortunately my setup had almost all space allocated to ASM so very little filesystem space existed. expdp will still export to a ASM disk group so that part was covered, but now I had a export file in an ASM diskgroup and no way to use OS commands to back it up. RMAN doesn't allow for backing up export files, so I was left with no way to get the file straight from ASM onto a tape and no filesystem space to put the export file on. I was stuck.  

Finn  

On 4/14/08, Baumgartel, Paul <paul.baumgartel_at_credit-suisse.com> wrote:

That's OK, and as you saw I was wrong anyway!

Paul Baumgartel
CREDIT SUISSE
Information Technology
Prime Services Databases Americas
One Madison Avenue
New York, NY 10010
USA
Phone 212.538.1143
paul.baumgartel_at_credit-suisse.com
www.credit-suisse.com

-----Original Message-----
From: dtseiler_at_gmail.com [mailto:dtseiler_at_gmail.com] On Behalf Of Don Seiler
Sent: Monday, April 14, 2008 10:06 AM
To: Baumgartel, Paul
Cc: Jared Still; oracle-l_at_freelists.org
Subject: Re: ASM - hardware mirroring vs. Oracle mirroring

Ah I missed the "in" when I read it the first time. Pardon me.

Don.

On Mon, Apr 14, 2008 at 8:38 AM, Baumgartel, Paul <paul.baumgartel_at_credit-suisse.com> wrote:
>
>
> I didn't say that RMAN doesn't work with ASM. I said that "there are
> certain operations in, e.g., RMAN, that aren't supported with ASM".
This
> was based on co-workers' comments regarding a database migration to a
new
> server.

--
Don Seiler
http://seilerwerks.wordpress.com
ultimate: http://www.mufc.us


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