Actually, RMAN always writes to the control file before it updates the catalog. So even if you do an RMAN backup using a catalog, you can still recover the database using only the controlfile. Now, in Oracle8i I had problems recovering the control file from the RMAN backup, so I just cheated and backed up the control file separately after the RMAN backup completed, and made sure the control file backup was on the same tape as the RMAN backup. I have performed many recoveries using this method. Dennis Williams On 5/25/05, Ruth Gramolini <rgramolini@xxxxxxxxxxxxxxx> wrote: >=20 >=20 > One very easy way is to do an rman backup with the nocatalog option. Thi= s > will use controlfile info for restores and recoveries. You can use all t= he > options of rman, just no catalog. That is what we do. >=20 > Just my $0.02, > Ruth >=20 > -----Original Message----- > From: Paula_Stankus@xxxxxxxxxxxxxxx > [mailto:Paula_Stankus@xxxxxxxxxxxxxxx] > Sent: Wednesday, May 25, 2005 4:49 AM > To: Paula_Stankus@xxxxxxxxxxxxxxx; rgramolini@xxxxxxxxxxxxxxx; > all_about_oracle@xxxxxxxxxx; oracle-l@xxxxxxxxxxxxx > Subject: RE: backing up rman catalog for disaster recovery >=20 >=20 > I am setting up a disaster recovery site and I was thinking about the > best way to do this. >=20 > My theory is that I would like to not just use another recovery catalog > on the DR site to backup my primary catalog but to somehow keep these > catalogs constantly in-synch so when I do need to do complete recovery > and only have the secondary rman catalog available - I wouldn't have to > recover the catalog as all of the previous backups would be found there. >=20 > So....should I do this using Oracle Data Guard on my disaster recovery > site catalog or backup rman then restore as my first procedure? Any > advice? >=20 > -- > //www.freelists.org/webpage/oracle-l > -- //www.freelists.org/webpage/oracle-l