You can change the DBID as mentioned in other messages.
(see metalink doc id 174625.1)

If you don't want to change the DBID, you can still backup the database
using RMAN; you just can't use the same schema in the same rman catalog
database as the original.

You can:
1. Use a different catalog database.
2. Use a different schema in the same catalog database (for example
rman_prod and rman_test schemas).
3. Don't use a catalog, and rely entirely on the control files as your
catalog.



> -----Original Message-----
> 
> Someone has just told me you can't do an RMAN backup of a 
> clone because it has
> the same database id as the original.   Is this true or not?  
> If so, how to get
> around it?
> 
-----------------------
-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Stephen Lee
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