HP 316095-B21 - StorageWorks Edge Switch 2/24 User Manual page 229

Glossary
unblocked port
Devices communicating with an unblocked port can log in to the Director and communicate
with devices attached to any other unblocked port, assuming that this is supported by the
current zoning configuration.
unicast
Communication between a single sender and a single receiver over a network. Compare to
multicast (communication between a single sender and multiple receivers) and anycast
(communication between any sender and the nearest of a group of receivers). Similar in
meaning to point-to-point communication.
vital product data
System-level data stored by the backplane in the electrically erasable programmable read-only
memory. This data includes serial numbers and identifies the manufacturer.
VPD
See vital product data.
warning message
Indication that a possible error has been detected. See also error message and information
message.
wrap plug
See loopback plug.
World Wide Names WWN)
Eight-byte address that uniquely identifies a Switch, or a node (end device), even on global
networks.
zone
Set of devices that can access one another. All connected devices may be configured into one
or more zones. Devices in the same zone can see each other. Those devices that occupy
different zones cannot.
zone member
Specification of a device to be included in a zone. A zone member can be identified by the port
number of the Director to which it is attached or by its device (or HBA) World Wide Name. In
multiswitch fabrics, identification of end-devices/nodes by World Wide Name is preferable.
zone set
See zone.
zoning
Grouping of several devices by function or by location. All devices connected to a connectivity
product, such as the Director, may be configured into one or more zones. See also zone.
ha-fabric manager user guide Glossary–15