Thanks Jim,
I forget to let you know that I already use "uname -a", but that won't display the "physical" model name ?! I'm not sure what is that call! but I compare with another box, eg: the name is moulded on the cover of the box is 450E, and using "uname" will display only "SunOS wradin1 5.8 Generic_108528-11 sun4u sparc SUNW,Ultra-80", which is nothing to show such thing of "450E", and this is the name that I want to know, if you know.
Thanks any way.