EMC Connectrix DS-32M2 - Page 338

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Connectrix DS-32M2 User Guide
Glossary
Device (1) A piece of equipment, such as a server or storage device, that is
attached to a Connectrix switch or a similar product. A device as
defined here is not controlled by the Connectrix Product Manager
and its operating parameters. (2) In EMC Symmetrix, a uniquely
addressable physical or logical part of the Symmetrix subsystem,
such as a disk. (This description is presented here only to clarify a
term used in other EMC documents.)
Dialog Box A pop-up window containing informational messages or fields to be
modified with desired options. This term is often used
interchangeably with window.
DID Destination ID, the address identifier that indicates the targeted
destination of the transmitted frame.
Director (1) An Enterprise-Class Fibre Channel switch. The Connectrix
ED-64M Director is a fully redundant Fibre Channel switch,
containing: dual power supplies, fan modules, CTP cards, SBARs,
and multiple FPMs, all hot-swappable. (2) A board-level module in
the Symmetrix that provides the interface between host channels (via
an associated adapter module in the Symmetrix) and Symmetrix disk
devices. (This description is presented here only to clarify a term used
in other EMC documents.)
DNS See Domain Name Service Name.
Domain ID A number (1 to 31) that uniquely identifies a switch in a fabric. A
distinct Domain ID is allocated to each switch in the fabric by the
principal switch.
Domain Name
Service Name
Host or node name for a system that is translated to an IP address
through a Name Server. All DNS names have a host name component
and, if fully qualified, a domain component, such as host1.abcd.com. In
this example, host1 is the host name.
DS-xxM A generic term that includes DS-16M, DS-16M2, DS-32M, and
DS-32M2.
DWDM Dense Wavelength Division Multiplexing, a process in which
different channelsof data are carried at different wavelengths over
one pair of fiber optic links. This is in contrast with a conventional
fiber optic system in which only one channel is carried over a single
wavelength traveling through a single fiber.