NonStop S-Series Planning and Configuration Guide (G06.26+)

Glossary
HP NonStop S-Series Planning and Configuration Guide—523303-017
Glossary-54
interoperability
interoperability. (1) Within an Expand node, the ability to use the features or facilities of
one environment from another. For example, the
gtacl command in the Open System
Services (OSS) environment allows an interactive user to start and use a Guardian tool
in the Guardian environment. (2) Among systems from multiple vendors or with
multiple versions of operating systems from the same vendor, the ability to exchange
status, files, and other information. Product externals and end-user publications for
NonStop servers often use the term
connectivity in this context. See also connectivity.
interpreted mode. See TNS interpreted mode.
interprocessor communications (IPC). The exchange of messages between processors.
interrupt ID (IID). The identification of an external interrupt.
intrinsic library. See Shared Millicode Library.
instance. A particular case of a class of items or objects. For example, a process is defined
as one instance of the execution of a program. Multiple processes might be executing
the same program simultaneously. Also, instance data refers to global data of a
program or library. Each process has its own instance of the data.
instance data. For each process using a dynamic-link library, a data segment area
containing the global variables used by the library.
I/O adapter module (IOAM). A collection of modular components that provides I/O
connectivity and can include ServerNet switch boards, Fibre Channel ServerNet
adapters (FCSAs), fans, and power supplies. In the IOAM, each module is a logical
entity that represents a single service domain.
I/O adapter module (IOAM) enclosure. The sheet-metal carrier that is installed in a 19-
inch rack and contains the IOAM components.
IOAM. See I/O adapter module (IOAM).
IOAM enclosure. See I/O adapter module (IOAM) enclosure.
I/O cabinet. See I/O enclosure.
I/O controller. The hardware logic that controls computer I/O operations for a particular set
of devices, such as disks, tapes, terminals, or communications lines. See also
ServerNet addressable controller (SAC)
.
I/O enclosure. An HP NonStop™ S-series system enclosure containing one module, which
includes ServerNet adapters, disk drives, components related to the ServerNet fabrics,
and components related to electrical power and cooling for the enclosure. An I/O
enclosure is identical to a processor enclosure except that it contains I/O multifunction
(IOMF) customer-replaceable units (CRUs) instead of processor multifunction (PMF)
CRUs.