ServerNet Cluster 6780 Operations Guide (G06.24+, H06.03+)

ServerNet Cluster 6780 Operations Guide—525606-002
Glossary-1
Glossary
6770 Switch. See HP NonStop Cluster Switch (model 6770).
6780 Switch. See HP NonStop ServerNet Switch (model 6780).
action. An operation that can be performed on a selected resource.
adapter. See ServerNet adapter.
alternate path. A path not enabled as the preferred path. An alternate path can become a
primary path when a primary path is disabled. Contrast with primary path.
appearance side. The side of a system enclosure that contains, behind a door, disk
customer-replaceable units (CRUs) and power monitor and control unit (PMCU) CRUs.
The appearance side is the side opposite the service side. System enclosures are
typically arranged so that the appearance side is the most visible side. See also
service side.
application program interface (API). A set of functions or procedures that are called by an
application program to communicate with other software components.
application-specific integrated circuit (ASIC). A custom-built integrated circuit (IC) used
to perform highly specialized functions.
ASIC. See application-specific integrated circuit (ASIC).
attachment. A file that contains information that augments the information in an incident
report.
attribute. (1) For the Subsystem Control Facility (SCF), a characteristic of an entity. For
example, two attributes of a process might be its program file and its user ID. An
attribute is sometimes called a modifier. (2) For the HP Open System Management
(OSM) Interface, a data item associated with a resource. All attributes can be viewed,
and some can be modified.
backplane. A board that has connectors, on one or both sides of the board, into which
circuit board assemblies plug. Backplanes are located behind card cages.
backup processor. A processor running the NonStop Kernel operating system that
communicates with the primary processor, allowing the processors to remain
independent. A component failure in one processor has no effect on any other
processor. Contrast with primary processor.
base enclosure. An enclosure that is placed on the floor and can have other enclosures
stacked on top of it. A base enclosure is installed on a frame base.
block. A grouping of one or more system enclosures that a NonStop S-series system
recognizes and supports as one unit. A block can consist of either one processor