What command to check system hardware

What command can I run on a Solaris 8 server to check the hardware (ie number of processors, speed of processors, installed memory etc).

/usr/platform/`uname -m`/sbin/prtdiag -v

(uname -m should be correct - you are looking for the 'family' of sun - sun4u, sun4m,... you can check with uname -a)

Thank you RTM.

/usr/platform/`uname -i`/sbin/prtdiag -v

98_1LE, yea, that's what I thought it was but since I hardly ever use it I had to actually do the command - Typed uname -i and my 2.6 box came back with SUNW,Ultra-2 instead of sun4u. So I figured I remembered it wrong. I see it does work though (links to sun4u).