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120 Sun Fire 6800/4810/4800/3800 System Controller Command Reference Manual • October 2001
system controller The system controller consists of the System Controller board and the system
controller software. The system controller software manages platform and
domain resources, monitors and controls the platform and domains, configures
domains and the platform, provides access to domain consoles, provides the
date and time to the Solaris operating environment, provides the reference
clock signal used throughout the system, provides console security, performs
domain initialization, provides a mechanism for updating the firmware on the
boards installed in the system, and provides an external management interface
using SNMP.
System Controller
board A board containing a CPU (central processing unit), which oversees operation
of the system and provides clocks and the console bus. These systems support
two System Controller boards.
TOD See virtual time of day (TOD).
virtual domain
keyswitch The system controller provides a virtual keyswitch for each domain. The
setkeyswitch command controls the position of the virtual keyswitch for
each domain.
virtual time of day
(TOD) The TOD/NVRAM chip is located on the System Controller board. The system
controller provides TOD services for each domain and for the system
controller.