Compaq GS80, GS160 Partition, PCI backplane, Manager PCI expansion box, PCI master box, PCI box

Local I/O riser module

Local primary CPU

Local testing

Memory directory module

The I/O riser module that is on the QBB backplane.

The CPU chosen to be the primary CPU in a QBB.

Testing confined to the QBB on which the CPU doing the testing resides.

See Directory module.

OCP	Operator control panel; used by the operator to control
	the system. It has a keyswitch, display screen,
	indicators, and buttons. The keyswitch is used to power
	the system up or down or to secure it from remote
	access. The screen displays messages during booting.
	Indicators show system state. The buttons reset or halt
	the system.
Partition	A subset of a system’s CPUs, memory, and I/O that
	runs its own copy (instance) of an operating system.
	See also Hard partition, Soft partition.
PBM	PCI backplane manager; monitors and manages the
	environment and components in the PCI box in which it
	resides.
PCI backplane	See PBM.
manager
PCI expansion box	A PCI box without a standard I/O module, console
	ports, and storage devices.
PCI master box	A PCI box containing a standard I/O module plus
	console ports and storage devices.
PCI box	An enclosure that provides 14 PCI slots (four PCI
	buses, two four-slot buses and two three-slot buses). A
	master PCI box contains a standard I/O module with
	the system control manager microprocessor, console
	ports, storage devices, and logic for the control panel.
	For redundancy, a secondary PCI master box also has
	these capabilities. PCI expansion boxes do not have the
	standard I/O module, console ports, storage devices,
	and control panel logic.

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