Thanks for the quick responses! I guess it was just wishful thinking that if the databases were all on the same machine I could use just one port. I'm sure that was possible with Oracle 10.1, but now we're on 11g and things have changed a lot. ...adding Grid Control to my list of things to do.... - Maureen Radoulov, Dimitre wrote: > On 07/02/2012 22:24, Maureen English wrote: >> Isn't there a way to have just one instance of EM database control >> running on a >> machine, using port 1158, but then be able to monitor any database >> from that one >> instance? >> > > The official documentation states the following:: > > Oracle® Enterprise Manager Concepts > 11g Release 11.1.0.1 > > 6 Database Management > > Database Control Versus Grid Control > > > Enterprise Manager provides two separate consoles that you can use to > monitor your database: Database Control and Grid Control. > > Database Control is the Enterprise Manager Web-based application for > managing Oracle Database 11g Release 1 (11.1) and later. Database > Control is installed and available with every Oracle Database 11g > installation. From Database Control, you can monitor and administer a > single Oracle Database instance or a clustered database. > > Grid Control is the Enterprise Manager console you use to centrally > manage your entire Oracle environment. Within Grid Control, you access > the multiple database targets using the Targets tab, then Databases. > > > From: > docs.oracle.com/cd/E11857_01/em.111/e11982/database_management.htm#DAFJDAEG > > > Regards > Dimitre -- //www.freelists.org/webpage/oracle-l