Hi Lisa,
HOSTTYPE is a generic reference to the type of machine you are running on. So you could be logged on to one of many types (models) of SGI machines. HOSTTYPE=iris4d, thus is indicating you're on an SGI as apposed to a SUN or HP or..., but it does not tell you what model of SGI you're logged on to.
There is no single command that will directly reveal the system model number. However, you can use the hinv command to find out the system board type and from there we can figure out what the model number is...
Execute the hinv as follows:
hinv -c processor | grep MHZ
The output will look something like:
hinv -c processor | grep MHZ
1 300 MHZ IP30 Processor
From the processor type, we can determine what type (model) of SGI you have.
For instance:
IP30 = Octane
IP34 = Fuel
IP35 = Origin 3000 series...
IP27 = Origin 2000 series...
I don't have complete list, but if you tell me your processor type (the IPXX number) I can get the model number for you.
Frank