ServerNet Cluster 6780 Operations Guide (G06.28+, H06.05+)

Glossary
ServerNet Cluster 6780 Operations Guide—525606-003
Glossary-4
command file
command file. An EDIT file that contains a series of commands and serves as a source of
command input.
communications line. A two-way link consisting of processing equipment, I/O devices,
protocol conventions, and cables that connect a computer to other computers.
communications subsystem. The combination of data communications hardware and
software processes that function together as an integrated unit to provide services and
access to wide and local area networks.
configuration. (1) The arrangement of enclosures, system components, and peripheral
devices into a working unit. (2) The definition or alteration of characteristics of an
object.
configuration planner. The person who manages system configuration changes and
software configuration changes. This person modifies the system configuration
database for system configuration changes and creates a new operating system image
for software configuration changes.
connection. (1) The path between two protocol modules that provides reliable stream
delivery service. (2) For the OSM software, the logical link established between the
OSM software and the NonStop S-series system after a logon sequence has been
performed. The two types of logical connections are service processor (SP)s and
low-level links.
connector. See port.
controller. See ServerNet addressable controller (SAC).
correctable memory error (CME). An error caused by incorrect data at a particular
memory location. The cause of the error is such that the error is automatically
corrected by the system. Contrast with uncorrectable memory error (UCME).
CPU. See central processing unit (CPU)
.
CRC. See cyclic redundancy check (CRC)
.
CRU. See customer-replaceable unit (CRU).
CUSTFILE. An EDIT file included on every site update tape (SUT) as
$SYSTEM.Annnnnn.CUSTFILE, where nnnnnn is the system serial number of the
target system. The CUSTFILE contains information on the software products on the
SUT, their related files, and the destination and use of each file. HP customizes
information in the CUSTFILE for each customer’s system.
customer engineer (CE). See service provider.
customer-replaceable unit (CRU). A unit that can be replaced in the field by customers or
by qualified personnel trained by HP. CRUs are divided into the categories of Class 1,