On Mon, Dec 29, 2008 at 2:05 PM, dba1 mcc <mccdba1@xxxxxxxxx> wrote: > I tried to setup ORACLE 11G dataguard on two servers. I follow document > setup following: > > ... > After I startup both primary DB and Standby DB, I got ORA-16191 error. > Anyone know what wrong it is? > > > Here is a very useful search string to plug into google: my oracle problem site:freelists.org In your case it would be: ora-16191 site:freelists.org There are a number of hits, you may want to see if any apply. Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist