NonStop S-Series Hardware Installation and FastPath Guide (G06.25+)

Glossary
HP NonStop S-Series Hardware Installation and FastPath Guide—529443-001
Glossary-40
fixed process configuration
fixed process configuration. Using Subsystem Control Facility (SCF) to configure a
generic process to always start in the first available processor (that is, to be fault
tolerant).
flag. In a UNIX or Open System Services (OSS) command, a character sequence that
begins with a hyphen and is processed as a unit.
flash memory. A type of memory that contains essential firmware and nonessential
firmware.
flash PROM. A type of programmable read-only memory (PROM) that is electrically
reprogrammable.
flat segment. A type of logical segment. Each flat segment has its own distinct address
range within the process address space that never overlaps the range of any other
allocated segments. Thus all allocated flat segments for a process are always available
for use concurrently. See also logical segment and selectable segment.
flexible disk configuration (FDC). For HP NonStop™ S-series servers, a configuration of
an internal mirrored disk volume such that no single processor enclosure or I/O
enclosure can result in loss of online access to the volume.
foreground process. An Open System Services (OSS) process that belongs to a
foreground process group.
foreground process group. In the Open System Services (OSS) environment, a process
group whose members have privileges for access to their controlling terminal that are
denied to processes in background process groups of that terminal. Each session with
a controlling terminal has only one foreground process group for that terminal. Contrast
with background process group.
foreground process group ID. In the Open System Services (OSS) environment, the
process group ID of a foreground process group.
four-lane link. The four single-mode fiber-optic (SMF) ServerNet cables that connect the
two HP NonStop™ Cluster Switches on the same external fabric (for example, X1 and
X2) in a split-star topology.
FOX. See Fiber Optic Extension (FOX).
FOXMON. See FOX monitor process.
FOX monitor process. The Fiber Optic Extension (FOX) monitor process for the
ServerNet/FX adapter subsystem. The process name is $ZZFOX.
FOX ring. The fiber-optic cabling that connects the nodes in a Fiber Optic Extension (FOX)
cluster. This term is also used to refer to the topology of a FOX network.
FPGA. See field-programmable gate array (FPGA).