HP Integrity NonStop J-Series User Manual
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backup processor
A processor running the HP NonStop™ operating system that communicates with the
, allowing the processors to remain independent. A component failure in one processor
has no effect on any other processor.
Baseboard
Management
Controller (BMC)
firmware
The firmware for the baseboard management controller (BMC) that monitors environmental sense
and control data.
Blade Element
A portion of one or more logical processors and one part of a Blade Complex. A Blade Element
consists of a chassis, processor board containing one or more processor elements and memory,
I/O interface board, midplane, optics adapters, fans, and power supplies.
When a logical processor has multiple Blade Elements, the Blade Elements are identified as Blade
Element A, Blade Element B, and Blade Element C.
Blade Element
reintegration
board
The part of a Blade Element that contains the hardware used in memory copy operations.
blower
A variable speed airflow device that pulls air into an enclosure or element. It usually pulls air in
from the front and exhausts the heated air out the rear.
board
A frame on which computer circuitry is mounted. Same as
boot
A synonym for
bus
A system or subsystem data path that provides serial or parallel interconnection for multiple
modules or components. Examples of buses are the serial maintenance buses (SMBs) and the
small computer system interface (SCSI) buses.
C
cabinet
The rack, front and back doors, side panels (if any), and PDUs. Cabinets contain enclosures and
other system components. A cabinet that can contain multiple enclosures is also called a
client
A software process, hardware device, or combination of the two that requests services from a
server. Often, the client is a process that resides on a programmable
and is the
part of an application that provides the user interface. The system console client might also perform
other portions of the application logic.
cluster
A collection of servers or nodes that can function either independently or collectively as a
processing unit.
See also
.
cluster number
A number that uniquely identifies a
. For example, this number can range from 1 through
14 for nodes in a Fiber Optic Extension (FOX) ring.
cluster switch
See
HP NonStop Cluster Switch (model 6770)
and
HP NonStop ServerNet Switch (model 6780)
.
cluster switch
enclosure
An enclosure provided by HP for housing the subcomponents of an HP NonStop™ Cluster Switch.
The subcomponents include the ServerNet II Switch, the AC transfer switch, and the uninterruptible
power supply (UPS). A cluster switch enclosure resembles, but is half the height of, a standard
HP NonStop S-series system enclosure.
cluster switch
group
Within an external ServerNet fabric, all the cluster switches that belong to the same
. A cluster switch group can consist of up to four 6780 switches, each representing one
. All of the cluster switches that form a cluster switch group typically are installed
in the same cluster switch rack.
cluster switch layer
The topological cluster switch position within a
. Each cluster switch group
can contain up to four layers, numbered 1 to 4 from bottom to top. A cluster switch layer consists
of a pair of cluster switches (X and Y) and provides connections for up to eight ServerNet nodes.
Layers within a group are interconnected by intragroup cables. When all four layers are present,
the intragroup cables are configured as a
.
See also
cluster switch layer
number
A number in the range 1 through 4 that identifies the position of a cluster switch within a cluster
switch group.
304 Glossary