ATM Adapter Installation and Support Guide

Glossary
ATM Adapter Installation and Support Guide—420013-002
Glossary-4
management process
management process. A process through which an application issues commands to a
subsystem. A management process can be part of a subsystem, or it can be
associated with more than one subsystem; in the latter case, the management process
is logically part of each subsystem.
Mbps. See megabits per second (Mbps).
megabits per second (Mbps). A data rate equal to 1,048,576 bits per second.
MFIOB. See multifunction I/O board (MFIOB).
microcode. Any machine code or data that can run in a microprocessor. HP produces two
types of microcode: volatile and nonvolatile. Volatile microcode is loaded into the
volatile random-access memory (RAM) of some types of printed wiring assemblies
(PWAs) and is not retained in a host PWA when power to the PWA is interrupted. For
nonvolatile microcode, see firmware. See also millicode.
millicode. RISC instructions that implement various NonStop system low-level functions
such as exception handling, real-time translation routines, and library routines that
implement the TNS instruction set. Millicode is functionally equivalent to TNS
microcode. See also microcode.
multifunction I/O board (MFIOB). A board that is part of the processor multifunction
customer-replaceable unit (PMF CRU). The MFIOB contains one ServerNet router, one
service processor, one ethernet controller, and three SCSI ports: two for disks internal
to the NonStop Snnn enclosure and one external differential SCSI port for attaching a
tape subsystem.
network. Two or more computer systems (nodes) connected so that they can exchange
information and share resources. See ServerNet system area network (ServerNet
SAN), “wide area network (WAN),” and local area network (LAN).
NonStop S-series servers. A product line of systems that implement ServerNet
architecture and run the NonStop Kernel operating system.
OSM. See HP NonStop™ Open System Management (OSM) software.
Permanent Virtual Circuit (PVC). This is a link with static route defined in advance, usually
by manual setup.
persistence. The capability of a generic process to restart automatically if it was stopped
abnormally.
PMF CRU. See processor multifunction (PMF) CRU
.
port. (1) A data channel that connects to other devices or computers. (2) A connector to
which a cable can be attached. The system transmits and receives data or requests
through ports on ServerNet adapters and processor multifunction customer-
replaceable units (PMF CRUs). A port is also called a connector. (3) The entrance or