All:

If you see below I am using rman to connect to stdby db but rman thinks it is connected to primary db.


From tnsnames.ora

STDBY =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.0.3.7)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = stdby)
)
)


$ rman target sys/sys@stdby CATALOG rman/rman@CATalog
Recovery Manager: Release 10.2.0.1.0 - Production on Sat May 9 17:42:41 2009
Copyright (c) 1982, 2005, Oracle. All rights reserved.
connected to target database: PRI (DBID=615014014)
connected to recovery catalog database

As you can this connects me to my primary database. Is it possible to use
rman to backup a standby DB.