I’m installing our first production RAC servers and am flummoxed by how long it’s taking to install the db instance using dbca. It takes more than 3 hours to install from the Custom setup in dbca on a 64gb machine using 2gb FCA’s to 800gb of ASM storage on an HP EVA SAN array.
I have seen dbca taking time when all options like JVM,XML , OLAP are chosen. By default all these are checked in and you have to uncheck them if you do not want it. Did you see the place where DBCA was taking more time? was it during data dictionary creation phase?