HP NonStop G-Series User Manual
Page 252
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
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
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. See also
cluster switch logic board
A circuit board that provides switching logic for
. The logic board (LB) has a front panel for operator and maintenance
functions.
cluster switch zone
A pair of X-fabric and Y-fabric
and the ServerNet nodes connected
to them. Up to three zones are possible. The zones, if more than one, are interconnected
by interzone cables, with each
cabled separately from the other layers
cold load
A synonym for
or load (in the case of a single processor load).
Common Communication ServerNet adapter (CCSA)
A ServerNet adapter that provides a NonStop S-series integration platform for Signaling
System Number 7 (SS7) protocol communications.
communications line interface processor (CLIP)
The major programmable device within the ServerNet wide area network (SWAN)
concentrator, providing link-level protocol and a software interface to the host. The CLIP
stores and implements specific communications protocols.
connection