Glossary-2
Hard partition
A partition whose basic unit is a QBB and which shares
no resources with any other QBB; defined by using the
SCM command language. The smallest hard partition
is one QBB; the maximum number of hard partitions in
one system is eight.
Hierarchical
switch
See H-switch.
Hose The connection between a QBB and a PCI box; can be
logical or physical.
Hot-swap state
One of the power states of the system in which all
power is present in the system. In this state certain
components of the system can be replaced. See also
Cold-swap, Warm-swap, and AC off states.
HPM
H-switch power manager; controls power and monitors
the temperature inside the H-switch housing. The HPM
reports status to the system control manager.
H-switch
Hierarchical switch; a high-speed switch connection for
all QBBs. Each QBB connects to the hierarchical switch
through its global port.
H-switch power
manager
See HPM.
I/O port
Backplane logic that provides an interface to the I/O
riser module.
I/O riser module
See Local I/O riser module and Remote I/O riser
module.
Instance
In a partitioned system, a copy of an operating system.
LFU
Loadable Firmware Update Utility; firmware used to
update the SRM console firmware and I/O device
firmware.
Loadable Firmware
Update Utility
See LFU.
Local and remote
Terminology relating to testing, CPUs, and system
management.
