We have a 3-node 11gR2 cluster supporting 30 databases. The biggest issue is with patching - it takes a while to bring down all resources for a given RDBMS $OH on any node in order to apply a PSU to that node. Best, Jeff On Thu, Oct 20, 2011 at 1:04 PM, LS Cheng <exriscer@xxxxxxxxx> wrote: > it is supported and it's normal > I have a customer who runs 16 database in a 4 nodes extended 10gR2 RAC, and > another 6 database in 11gR2, and so on > > Thanks > > -- > LSC > > > > -- //www.freelists.org/webpage/oracle-l