NonStop System Glossary

dedicated service LAN
An Ethernet local area network (LAN) for use by only OSM and TSM. This LAN connects system
consoles with the Ethernet ports on various hardware components in NonStop Blade Systems,
NonStop NS-series servers, and NonStop S-series servers.
DEFINE
A TACL command you can use to specify a named set of attributes and values to pass to a process.
DEFINES paragraph
An optional paragraph in the CONFTEXT configuration file that contains one or more identifiers,
each with its associated text string. The DEFINES paragraph, if used, precedes the ALLPROCESSORS
paragraph.
delta
A method for connecting a 3-phase power source (or load) in a closed series loop with input (or
output) connections made to each of the three junctions. The delta’s physical arrangement resembles
the delta character from the Greek alphabet.
demon
On a UNIX system, a process that runs continuously to provide a specific service for other processes.
A demon does not have a controlling terminal and is not explicitly invoked. On a NonStop system,
a demon runs in the Open System Services (OSS) environment and has an OSS process ID. See
also static server.
dest PID
See destination PID (dest PID).
destination control table (DCT)
The NonStop operating system data structure that holds information about every device and named
process in the system. The DCT consists of the named resource list (NRL) and the process-pair list
(PPL). The DCT is replicated in each CPU.
destination PID (dest PID)
The destination processor for a packet generated by an input/output application-specific integrated
circuit (ASIC).
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).
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