The SPARCcluster-1 is the same except that it has only a single system-board; whilst the SPARCcluster-2 has a pair. If you have a spare SS10 motherboard, you could even turn a SPARCcluster-2 into a "SPARCcluster-3"!
All models use the same chassis.
Each system-board runs a separate copy of the operating-system. In principle the system-boards can each run a different operating-system (eg: Solaris 2.x versus SunOS 4.x). The disks are shared over the internal LAN via NFS.
It really is just a bunch of SS10s networked together in a big box.
You can get some idea of the relative heat-dissipation of the various MBus modules from the SPARCstation-10 configuration table.
The location of the system boards in the chassis may substantially change the separation between modules, and alter the airflow, and thus change the overheating risks. Follow the hardware installation manual whenever possible.
|Mike Spooner, revised 9th June 1999|