Virtualization
T1 is the first SPARC processor that supports the Hyper-Privileged execution mode. The SPARC Hypervisor runs in this mode, and it can partition a T1 system into 32 Logical Domains, each of which can run an operating system instance.
Currently, Solaris and Linux are supported, and FreeBSD support is under development.
Read more about this topic: Ultra SPARC T1