IBM TotalStorage SAN140M, Installation And Service Manual

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371 Glossary
V
vital product data System-level data stored by FRUs in electrically erasable
programmable read-only memory. VPD identifies the manufacturer
and includes the FRU part number and serial number.
VPD
See vital product data .
W
WAN See wide area network .
well-known address
A set of address identifiers defined in the Fibre Channel Physical and
Signaling Interface specification that access global server functions
such as a login server, management server, or name server.
wide area network A network that covers a larger geographical area than a LAN and
where telecommunications links are typically leased through a
common carrier. Contrast with
local area network , metropolitan area
network , and storage area network .
world-wide name An eight-byte string that uniquely identifies a Fibre Channel entity
such as a port, node, director, switch, or fabric.
WWN
See world-wide name .
X
XFP transceiver See 10 Gbps form factor pluggable transceiver .
XPM
See 10 Gbps port module card .
Z
zone A set of logically-partitioned devices. Zone members can recognize
each other and communicate through switched port-to-port