Owner manual

processors. In a NonStop S-series server, there is one group in a system enclosure, and
each group consists of a single module.
See also enclosure, module, customer-replaceable unit (CRU), and field-replaceable unit
(FRU).
guided procedure
A software tool that assists you in performing complex configuration or replacement
tasks on an NonStop S-series server. OSM guided procedures are launched through
actions in the OSM Service Connection. Guided procedures include Replace PMF,
IOMF, SNDA, SEB, or MSEB.
H
halt
To stop a processor, terminating all processes running in it. Halt is a processor action
available in both the OSM Low-Level Link and the OSM Service Connection. Halting a
processor does not affect any other processors in the system.
An error situation that stops a processor, terminating all processes running in it. If a
processor halts on its own, OSM issues an alarm such as Processor Software Halt.
hard reset
Use a hard reset to terminate all processes running on a processor, stop the processor,
clear the processor's memory, and reset the processors internal mapping tables. Hard reset
is a processor action available in the OSM Low-Level Link.
Always try the Processor Reset action first. Use the Hard Reset action only if the
fails.
Performing a memory dump after a hard reset does not produce any useful
information.
hardware error freeze (HEF)
A lock-step error that has caused a processor to freeze.
HP NonStop Cluster Switch (model 6770)
An assembly that routes ServerNet messages across an external fabric of a ServerNet
cluster. The cluster switch consists of a ServerNet II Switch, an uninterruptible power
supply (UPS), and AC transfer switch, and it can be packaged in a switch enclosure or in
a 19-inch rack. The cluster switch is used with star, split-star, and tri-star topologies. See
also HP NonStop Cluster Switch (model 6780).
HP NonStop ServerNet Switch (model 6780)
The cluster switch used in the layered topology. The 6780 switch consists of a switch