RE: RMAN backup to disk and then later copy to tape
- From: "Sweetser, Joe" <JSweetser@xxxxxxxx>
- To: <JBECKSTROM@xxxxxxxxx>, "oracle-l-freelists" <oracle-l@xxxxxxxxxxxxx>, "oracle-db-l" <oracle-db-l@xxxxxxxxxxxxxxxxxxxx>
- Date: Mon, 13 Apr 2009 11:34:51 -0600
One issue I've encountered with this is that RMAN will not know ANYTHING
about the backups on tape. So say, for example, you keep 7 days of
backups on disk and then they are deleted since they have been copied to
tape. If you run a crosscheck command, RMAN will mark the files that it
can't find ON DISK as expired. So be careful with that. For restore,
it adds an extra step in that you have to restore the files from tape to
the directory they were in before attempting anything with RMAN.
In short, there really isn't a problem, per se, with this scenario as
long as you understand the implications. Oh - also pay careful
attention to timing. If your tape backup comes along while the RMAN
backup is still running, it's possible you would end up with an
incomplete backup set on a single tape.
hth,
-joe
________________________________
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Jeffrey Beckstrom
Sent: Monday, April 13, 2009 11:22 AM
To: oracle-l-freelists; oracle-db-l
Subject: RMAN backup to disk and then later copy to tape
We are looking into switching from hot backups on Windows servers to
RMAN backups.
Our intent is to use RMAN to backup to disk. At a later time, we will
use Symantec Backupexec to copy the backup sets to tape.
Anybody see a problem with doing this?
Jeffrey Beckstrom
Database Administrator
Greater Cleveland Regional Transit Authority
1240 W. 6th Street
Cleveland, Ohio 44113
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