QIO Configuration and Management Manual

Glossary
QIO Configuration and Management Manual—424717-008
Glossary-4
error
error. A condition encountered when performing a command or other operation that causes
the command or operation to fail.
error number. For the Subsystem Programmatic Interface (SPI), a value that can be
assigned to a return token or to the last field of an error token to identify an error that
occurred. SPI defines a small set of error numbers, but most error numbers are defined
by subsystems.
Ethernet. A local area network (LAN) that uses the carrier sense multiple access with
collision detection (CSMA/CD) access method on a bus topology and is the basis for
the IEEE 802.3 standard.
Ethernet 4 ServerNet adapter (E4SA). A ServerNet adapter for Ethernet local area
network (LAN) that contains four Ethernet ports.
Event Management Service (EMS). A Distributed Systems Management (DSM) product
that provides event collection, event logging, and event distribution facilities. EMS
provides different event descriptions for interactive and programmatic interfaces, lets
an operator or an application select specific event-message data, and allows for
flexible distribution of event messages within a system or network.
event message. Text intended for a system operator that describes a change in some
condition in the system or network, whether minor or serious. The change of condition
is called an event. Events can be operational errors, notifications of limits exceeded,
requests for action needed, and so on. Each event message, when displayed on an
event screen, is displayed as one line of text. See also operator message.
Expand network. The NonStop OS network that extends the concept of fault-tolerant
operation to networks of geographically distributed HP NonStop™ systems. If the
network is properly designed, communication paths are constantly available even if
there is a single line failure or component failure.
Fast Ethernet ServerNet adapter (FESA). A single-ported ServerNet adapter that supports
100-megabit/second (Mbps) or 10-Mbps Ethernet data transfer rates on an HP
NonStop™ S-series server.
field-replaceable unit (FRU). A unit that can be replaced in the field only by qualified
personnel trained by HP and cannot be replaced by customers. A unit is classified as a
FRU because of safety hazards such as weight, size, sharp edges, or electrical
potential; contractual agreements with suppliers; or national or international standards.
See also customer-replaceable unit (CRU).
filename. In the Open System Services (OSS) environment, a component of a pathname
containing any valid characters other than slash (/) or null. See also file name
.
file name. A string of characters that uniquely identifies a file.
In the PC environment, file names for disk files normally have at least two parts (the
disk name and the file name); for example, B:MYFILE.