Please read: 8.4.1 Adding a Datafile or Creating a Tablespace In the Oracle Data Guard Concepts and Administration manual. This is for a Physical standby, I don't know what you have but I'm guessing it's a physical not a logical. And this is the section number in 9.2, again I'm assuming you are on 9.2, might be slightly different in other database versions. Ric Van Dyke Hotsos Enterprises ----------------------- Hotsos Symposium March 4-8, 2007. Be there. -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Syed Jaffar Hussain Sent: Tuesday, August 08, 2006 9:52 AM To: _oracle_L_list Subject: missing datafile on STANDBY DATABASE. Hello list, We are maintaining the standby database to our one of important database. On 5th August, a datafile has been added to primary database, unfortunately, there was no sufficient space on standby server. MRP background process has died and no archive logs were applied until now. I try to rename the datafile, create datafile, but, couldn't succeeded. Opened a TAR with oracle and they said that rebuild standby. I couldn't find the 'UNNAMED00266' file at OS leve. But, the entry is there in v$datafile. I have even cheked all my backups from 5th August, finding a luck to have the file in backup, if someone deleted the file. But, not luck. Is there any way that we can resolve this issue? I have all the archived log since that point. Thanks, -- Best Regards, Syed Jaffar Hussain 8i,9i & 10g OCP DBA Banque Saudi Fransi, Saudi Arabia I blog at :http://jaffardba.blogspot.com/ http://www.oracle.com/technology/community/oracle_ace/ace1.html#hussain ------------------------------------------------------------------------ ---------- "Winners don't do different things. They do things differently." -- //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l