What error do you get when trying to connect? Have you checked archive space? Guillermo Alan Bort DBA / DBA Main Team EDS, an HP company ITO Arias 1851 Ciudad Autonoma de Buenos Aires (C1429DXC) Argentina Tel: +54 11 4704-3132 E-mail: guillermo.bort@xxxxxxx <mailto:name.name@xxxxxxx> We deliver on our commitments so you can deliver on yours. From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of drumil narayan Sent: Wednesday, November 26, 2008 10:13 AM To: oracle-l@xxxxxxxxxxxxx Subject: not able to connect to the database am not able to connect to our production server, two nod rac. in oem it is showing metric collection error. in alert logs there are no errors. dumps or core have no been generated at other dump destinations. other sys none of the user is getting connected what could be the issue...this is critical production system thanks ________________________________ Be the first one to try the new Messenger 9 Beta! Click here. <http://in.rd.yahoo.com/tagline_messenger_7/*http:/in.messenger.yahoo.com/win/>