Best Practices for Oracle CRS Setup for a BIG Transaction Volume Benchmark ?

Folks

For an upcoming BIG Transaction Volume 3 Node RAC Benchmark, what are the best practices for ORACLE CRS Setup ?

1. Can Multiple Private Interconnects be setup between each RAC Pair?
2. Can Multiple "Private Node Names" be defined for each "Public Node Name" during CRS installation?
3. Do Multiple Network Interfaces of Interface Type "Private" need to be defined during CRS installation?

Any Docs, Links will help.

NOTE - Am familiar with CRS installation of 2 Node RAC with Single Private Interconnect.

Cheers & Thanks

Vivek

SETUP:-
Oracle 10gR2
Solaris 10
Cluster filesystem - QFS
Each DB Server Node model = SF 25K
Num of CPUs in Each Node = 40
Storage - Sun Storagetek 9990 Base System storage box

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