Platform Names and Groups
When you are  adding clients for a network installation, you must
know your system architecture (platform group). If you are writing a custom JumpStart installation
rules file, you need to know the platform name.
Some examples of platform names and groups follow. For a full list
of SPARC based systems, see Solaris Sun Hardware Platform Guide at http://docs.sun.com/.
Table 4-7 Example of Platform Names and Groups
| System | Platform Name | Platform Group | 
|---|
| Sun Fire | T2000 | sun4v | 
| Sun BladeTM | SUNW,Sun-Blade-100 | sun4u | 
| x86 based | i86pc | i86pc | 
Note - On a running system, you can also use the uname -i command to determine
a system's platform name or the uname -m command to determine a system's platform group.