You need to think about the reasons for running RAC. Is it to overcome downtime due to scheduled server outages? Or for high availability (ie 24x7 or as close as possible)? Are you trying for a...
Normally running Oracle on AIX 5.3, you need to do some memory tuning so that you don't "double up" in buffering files. General rule is to reduce AIX amount of mem used to buffer IO and put this...