Oracle Database Discussions

Hi,

I want to enable block tracking for RMAN.
Previously it was set at +data/dbs/db.pct
then i disabled block change tracking with below command.


alter database disable block change tracking;


I am trying with below statement.


alter database enable block change tracking using file '/dba/apps/db.bct';


But is it running from 2 hurs.
Normally it executed within a second.

How i can troubleshoot it?

Thanks,