32 and /or 64 bit kernel :How to find system supports ?

From the command-line
=====================
$ getconf HW_CPU_SUPP_BITS
32 ---> system supports only 32-bit
32/64 ---> system supports both 32 and 64-bit
64 ---> system supports only 64-bit

From SAM
========
1) goto Performance Monitors -> System Properties -> Processor
2) check Kernel Width Support: value

The following summarizes the 11.00 implementations supported on HP9000
Servers: