NonStop S-Series System Expansion and Reduction Guide

Glossary
G-Series Common Glossary
Glossary-23
destination ServerNet ID (DID)
destination ServerNet ID (DID). A field in the ServerNet packet header indicating the
intended destination for the packet.
detailed report. A complete listing of status or configuration information provided by the
Subsystem Control Facility (SCF) STATUS or INFO command when you use the
DETAIL option. Contrast with summary report
.
device. A computer peripheral or an object that appears to an application as such. See also
terminal
.
DHCP. See Dynamic Host Configuration Protocol (DHCP).
dial-out point. A system console from which incident reports are sent to a service provider.
Incident reports are sent only from system consoles defined as the primary and backup
dial-out points (the primary and backup system consoles).
DID. See destination ServerNet ID (DID).
DIMM. See dual inline memory module (DIMM).
direct connect. Connection from the Fibre Channel ServerNet adapter (FCSA) to the
Enterprise Storage System (ESS)
without going through an FC switch.
direct current (DC). Electric current that flows in only one direction. Contrast with
alternating current (AC)
.
direct jump area. One of sixteen 256-megabyte portions of the 4-gigabyte virtual address
space. A RISC jump instruction has the ability to jump directly to any location within its
own direct jump area without having to use a far jump table.
directory. A type of Open System Services (OSS) special file that contains directory entries,
which associate names with files. No two directory entries in the same directory have
the same name.
directory entry. In the Open System Services (OSS) file system, an object that associates
a filename with a file. Several directory entries can associate names with the same file.
See also link
.
directory loop. In the Open System Services (OSS) file system, an error condition in which
a directory is identified as its own parent directory.
directory special file. See directory.
directory stream. In the Open System Services (OSS) file system, an object with an
opaque data type. A process can sequentially read directory entries from a directory
stream.