NonStop System Glossary

2. Within the ServerNet architecture, the nine or more bits that encode 8-bit data and protocol
commands.
symbolic link
In the Open System Services (OSS) file system and Network File System (NFS), a type of special
file that acts as a name pointer to another file. A symbolic link contains a pathname and can be
used to point to a file in another fileset. Symbolic links are not included in ISO/IEC IS 9945-1:1990.
Contrast with hard link.
symbolic reference
An occurrence in code or data of the value of a symbol. The symbolic reference is bound (resolved
and made usable) by assigning to it the value of a definition of that symbol. The symbol value is
normally the address of a function or variable named by the symbol. In position-independent code
(PIC) loadfiles, symbolic references occur only in data.
symbols region
See Inspect region.
SYSGENR
The system generation program that generates a customized version of the NonStop operating
system for G-series RVUs.
SYSnn subvolume
A subvolume on the $SYSTEM volume where the new version of the NonStop operating system
image is located. Also located on the SYSnn subvolume is system-dependent and RVU-dependent
software. nn is an octal number in the range %00 through %77.
SYSPOOL
The system data space that remains in memory after all system data structures are built by the
NonStop operating system at the time of a processor load.
system
All the processors, controllers, firmware, peripheral devices, software, and related components
that are directly connected together to form an entity that is managed by one NonStop operating
system image and operated as one computer. See also node.
system area network management process
See external system area network manager process (SANMAN).
system code
A logically distinct part of the NonStop operating system that consists of operating system procedures
shared by all processors.
System Code (SC)
See TNS code space.
system configuration database
The database file on the $SYSTEM.ZSYSCONF subvolume that contains configuration information
for all system objects that can be configured by the Subsystem Control Facility (SCF). Configuration
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