SMON is going to need to do the work regardless of what you do. Use locally managed tablespaces. Josh C. _____ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Ahmed Ullah Sent: Thursday, April 27, 2006 3:36 PM To: oracle-l@xxxxxxxxxxxxx Subject: DATABASE HANGS WITH SHUTDOWN IMMEDIATE Hello all: We have Oracle 9.2.0.5 database ( single Note RAC ). There were some heavy batch jobs running which cuased the db hang ( only sys connection was working ). We tried to bring down the database after cleaning all sessions. It did not go down with SHUTDOWN IMMEDIATE. We had to abort it. I tried to bring down the DB three times with SHUTDOWN IMMEDIATE it never went down. SMON was trying to cleanup the used extents ( Metalink Note - 1076161.6 ) as we could see in the alert log file - Waiting for smon to disable tx recovery. SQL> select count(block#) from fet$; COUNT(BLOCK#) ------------- 38 fet$ - free extents SQL> select count(block#) from uet$; COUNT(BLOCK#) ------------- 52905 uet$ - used extents We can share the alert log and system level 10 trace files if anyone wants. These traces were generated when db hung. Appreciate your help. Thanks, -ahmed _____________________________________________ "If we knew what it was we were doing, it wouldn't be called research, would it?" --Albert Einstein _____ New Yahoo! Messenger with Voice. Call <http://us.rd.yahoo.com/mail_us/taglines/postman5/*http://us.rd.yahoo.com/evt=39 666/*http://messenger.yahoo.com> regular phones from your PC and save big.