HP 316095-B21 - StorageWorks Edge Switch 2/24 Manual - Page 25

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HP 316095-B21 - StorageWorks Edge Switch 2/24 Manual

unblocked port

Devices attached to an unblocked port can log in to the director and communicate with devices

attached to any other unblocked port.

unicast

Communication between a single sender and a single receiver over a network. Compare to

multicast and anycast (communication between any sender and the nearest of a group of

receivers). See also multicast.

universal port module card

Each universal port module (UPM) card provides four Fibre Channel connections through

duplex small form factor (SFF) pluggable fiber optic transceivers. UPM cards allow 1 or 2

gigabits per second enabled.

UPM card

See

universal port module

vital product data

(VPD) — 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

Software message that indicates a possible error was detected. See also

information

message.

wrap plug

See

loopback

plug.

World Wide Name

(WWN) — Eight-byte address that uniquely identifies a switch, or a node (end device) on

global networks.

WWN

See

World Wide

Name.

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. Devices that occupy different zones

cannot see each other.

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 World Wide Name. In multiswitch

fabrics, identification of end-devices/nodes by World Wide Name is preferable.

Directors and Edge Switches Glossary

card.

Glossary

error message

and