McDATA Eclipse 2640 SAN, Administration And Configuration Manual

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g-40 Eclipse™ 2640 SAN Router Administration and Configuration Manual
Glossary
metro-area storage
area network (mSAN)
A metro-area storage area network (mSAN) is a collection of one or
more fabrics interconnected using one or more SAN routers, where
all the fabrics are within a data center or in different data centers that
are within the metro area. An mSAN is characterized by low latency,
high quality and high bandwidth ISLs such as those found within the
data center or within the metro area using technologies such as dark
fiber, xWDM, MAN services, etc. If there are multiple SAN routers in
an mSAN, they are interconnected using mFCP connections. SAN
routing done within an mSAN is referred to as mSAN Routing or
SAN Routing within the data center. An mSAN may be referred to as
a local mSAN within the context of its own mSAN, while all the other
mSANs that it is communicating with are referred to as remote
mSANs.
See also
local area network ; metropolitan area network ; wide
area network .
multimedia
A simultaneous presentation of data in more than one form, such as
by means of both visual and audio.
multimode optical
fiber
A graded-index or step-index optical fiber that allows more than one
mode (light path) to propagate
(D)
.
Contrast with
singlemode optical
fiber .
Multiple Virtual
Storage
MVS™. The generic name for an IBM-licensed operating system used
on System/370 and later mainframe processors. Introduced in 1974, it
continues to be used though it has been mostly superseded by the
newer IBM operating system, Operating System/390 (OS/390™)
(D)
.
Multiple Virtual
Storage/Enterprise
Systems Architecture
MVS/ESA™.
See
Enterprise Systems Architecture ; Multiple Virtual
Storage .
multiplexer
A device that allows two or more signals to be transmitted
simultaneously on a single channel.
multiswitch fabric
Fibre Channel fabric created by linking more than one director or
fabric switching device within a fabric.
MVS™ See
Multiple Virtual Storage .
MVS/ESA™ See
Multiple Virtual Storage/Enterprise Systems Architecture .