I'm not a Legato expert but ...
I think a big part of the problem is that during backup, rman can shovel the
files into Networker in parallel, but when it is time to restore the files,
the parallelism (or most of it) goes away. We have started keeping a copy
of the backup on disk as well as on tape. We have just started this for the
same reason you have experienced, so we are still experimenting. Our
current strategy -- subject to change if somebody comes along with something
better -- is to backup to disk; then run a script that uses mminfo to see
what is on disk that isn't on tape; then use the save command to send the
new files to tape; then delete yesterday's backup from disk. In our case,
we have about 1.8 Tb allocated for this. So yeah, we're talking about a wee
bit of disk space here.
Please see the official ORACLE-L FAQ:
http://www.orafaq.com
To unsubscribe send email to: oracle-l-request_at_freelists.org
put 'unsubscribe' in the subject line.
--
Archives are at
http://www.freelists.org/archives/oracle-l/
FAQ is at
http://www.freelists.org/help/fom-serve/cache/1.html
Received on Thu Jun 10 2004 - 11:50:52 CDT
