On 10/05/2013 12:45 PM, Norman Dunbar wrote: > Nope. All servers are on separate and non-matching listener ports. > > The problem was a trailing slash in the Oracle Home path in /etc/oratab. > Imagine how silly I feel? It's always the simple and seemingly-innocent stuff that gets us. It was indeed an ORACLE_HOME + ORACLE_SID mismatch, just not the way we expected. Just yesterday I was telling my students that the two strings are used to identify the SGA location, and here it is... -- //www.freelists.org/webpage/oracle-l