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Glossary-4
Power cabinet Cabinet in the GS160/320 systems that provides power
for the system cabinets and houses PCI boxes and stor-
age shelves.
Power system
manager
See PSM.
PSM Power system manager; a module in each QBB that
monitors CPUs, voltages, temperatures, and fan speeds
in the QBB and then reports this information to the sys-
tem control manager (SCM). The SCM can make
requests of the power system manager.
QBB Quad building block; the basic building block of the sys-
tem. The QBB backplane provides a crossbar switch and
connectors for one to four processor modules, one to four
memory modules, power converters, a power system
manager, a memory directory module, a clock splitter
module, a global port, and up to two local I/O risers.
QBB, hard Number that indicates the physical location of a QBB in
a system.
QBB, soft Number that indicates a QBB as reported by the firm-
ware.
Rack cabinet The GS80 cabinet configured as a complete system that
holds up to two system drawers, each of which has one
QBB.
Remote I/O riser
module
A module on the PCI that provides the interface between
the PCI and the QBB through the local I/O riser.
Remote testing Testing run by the system primary CPU on a QBB other
than the QBB in which it resides.
SCM System control manager; a microprocessor on a standard
I/O module that monitors and controls the system state
through the CSB. The SCM provides a command lan-
guage for an operator and allows for remote manage-
ment of the system. The SCM controls power-up, system
configuration, system monitoring, power-on and power-
off, and firmware updates. A second standard I/O mod-
ule with another SCM provides a backup control system.