Re: Catalog RMAN backups on Tape?

The key with dbms_backup_restore is that you need to know the piece names you are dealing with. I know there is a way with Netbackup to get these names (I've never done it but I've had an administrator do it for me). Here is an example of restoring a control file using Tivoli and dbms_backup_restore that I did in April of this year..... Other restores (ie backupsets) are similar.


-- PL/SQL to restore control file from Tivoli
-- Assumes:
-- 1. Tivoli setup properly on machine.
-- 2. You have the file name (Dan was able to extract file names for us).
-- 3. Instance must be started (not mounted or open).

DECLARE
devtype varchar2(256);
done boolean;
BEGIN
-- Makes the connection to the MML storage device. Note the TDPO file needs to be created.
devtype
:= dbms_backup_restore.DeviceAllocate (type =>'SBT_TAPE', params
=>'ENV=(TDPO_OPTFILE=/opt/oracle/backup/a004/rman/tdpo_a004.opt)',
ident =>'RESTORE_CFILE' );
dbms_backup_restore.RestoreSetDatafile;
-- This is where you set the restore location.
dbms_backup_restore.RestoreControlfileTo(cfname=>'/tmp/restore_control.ctl');
--
This is where you actually restore the file. Note in this case we are
restoring from a backup set piece that is a control file autobackup.
dbms_backup_restore.RestoreBackupPiece (done=>done, handle =>'c-2078049061-20090427-00');
dbms_backup_restore.DeviceDeallocate;
END;
/



RF



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________________________________
From: Thomas Roach <troach_at_gmail.com>
To: Brandon.Allen_at_oneneck.com
Cc: "sims_at_suu.edu" <sims_at_suu.edu>; "oracle-l_at_freelists.org" <oracle-l@freelists.org>
Sent: Tue, January 26, 2010 8:42:55 AM
Subject: Re: Catalog RMAN backups on Tape?

Thanks to Robert, I was able to get the old entries.

I restored an old copy of the control file and then that had entries for what I needed. On another server I am going to restore the system tablespace, spfile, and the tablespace of the table I need to export. I will then export it and blow away the restored DB.

Please continue on with this conversation. Maybe I can try something with dbms_backup_restore with device type sbt?


On Tue, Jan 26, 2010 at 10:36 AM, Allen, Brandon <Brandon.Allen_at_oneneck.com> wrote:

>
>
>
>
>
>Hi April,
>1)     
>Yes, you can with dbms_backup_restore – there have been a few mentions of that already on this thread
>2)     
>Yes, it’s the MML layer that reads & writes to the tape
>a.      
>Not sure about your second question if they are retrievable – maybe that was for the OP?
>3)     
>I don’t put KEEP on anything, we manage retentions centrally in Netbackup here and I run crosscheck and delete expired on a monthly basis to prevent
> overgrowth of the RMAN catalog, but I also regularly backup my controlfile (autobackup in 9i+) and my recovery catalog so I have something to fall back on in case I accidentally delete the wrong records somehow.
>Regards,
>Brandon
> 
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-- 
Thomas Roach
813-404-6066
troach_at_gmail.com

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