Service manual

Glossary
g-19
Glossary
the implementation of a layer can be changed without affecting other
layers.
open-systems
management server
An optional feature that enables inband management and host
control of a director or switch through an OSI server attached to a
product port. Contrast with FICON management server.
open-systems mode The management mode used to specify director or switch port
connectivity whentheproduct is attachedto otherMcDATAproducts
orOSI-compliant devicesas part of an open fabric.ContrastwithS/390
mode.
Operating System/390 Anintegrated, open-enterprise server operatingsystemdeveloped by
IBM that incorporates a leading-edge and open communications
server, distributed data and file services, parallel Sysplex support,
object-oriented programming, distributed computing environment,
and open application interfaces.
OS/390 See Operating System/390.
OSI See open-systems interconnection.
out-of-band
management
Management of a director or switch through an Ethernet port
connection to a management server. Contrast with inband management.
P
persistent binding A form of server-level access control that uses configuration
information to bind a server to a specific Fibre Channel storage
volume (or logical device), using a unit number.
point-to-point One of three topologies offered by the Fibre Channel protocol. The
topology is structured as a single, direct connection between two
communication ports. See also arbitrated loop and switched fabric.
POST See power-on self-test.
power-on self-test A series of self-diagnostic tests that run automatically when a device
powers on.