Get the DBID of the non-existent database from the catalog. Log into the catalog instance as the rman user and 'select db_id from db where db_key in (select db_key from dbinc where db_name= '<SID>'); On any other database server start an RMAN session and connect to the catalog, NOT the target! RMAN>set dbid nnnnnnnnnnnnn; <-- dbid returned from query above RMAN>unregister database; On Wed, Jul 1, 2009 at 1:26 PM, Jeffrey Beckstrom <JBECKSTROM@xxxxxxxxx>wrote: > Assume database A is on server A and server A dies. How can I unregister > database A from the recovery catalog if the database no longer exists? > > > Jeffrey Beckstrom > Database Administrator > Greater Cleveland Regional Transit Authority > 1240 W. 6th Street > Cleveland, Ohio 44113 >