NonStop System Glossary

SP
See service processor (SP) or see security policy (SP).
SP event message
See service processor (SP).
SP Tool Application
A PC-based software application that you can use to request information from the master service
processors (MSPs) in a NonStop S-series server. This application is intended for use only by trained
service providers.
SPD
See security policy database (SPD).
special character
A character entered from a terminal that has an effect other than being part of the input stream
from that terminal.
special file
A file in the Open System Services (OSS) file system that is not a regular file. Special files include
directories, FIFOs, and character special files such as terminal device files. Contrast with regular
file.
SPI
See Subsystem Programmatic Interface (SPI) or see security parameter index (SPI).
S-PIC
See SCSI plug-in card (S-PIC).
split-star topology
A network topology that uses up to two NonStop Cluster Switches for each external fabric. External
routing is implemented between the two starred halves of a ServerNet cluster. (A starred half
consists of up to eight nodes attached to one set of cluster switches.) The starred segments are
joined by four-lane links. Introduced with the G06.12 RVU, the split-star topology supports up to
16 nodes. See also star topology, tri-star topology, and layered topology.
spooler
The collection of files and processes that manages the printers and print jobs on the system.
SPR
See software product revision (SPR).
SRL
See shared run-time library (SRL).
SRM
See system resource model (SRM).
S 179