HP 316095-B21 - StorageWorks Edge Switch 2/24 Handbuch - Seite 24

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HP 316095-B21 - StorageWorks Edge Switch 2/24 Handbuch
Glossary
jumper cable
Optical cable that provides physical attachment between two devices or between a device and a
distribution panel. See also
latency
The amount of time it takes for data transmission to pass through a switching device. When
used in reference to a Fibre Channel switching device, latency refers to the amount of time
elapsed between receipt of a data transmission at a switch's incoming F_Port (from the
originating node port) to retransmission of that data at the switch's outgoing F_Port (to the
destination N_Port).
LIN
See
link
incident.
link
Physical connection between two devices on a switched fabric.
link incident
(LIN) — Interruption to a Fibre Channel link due to loss of light or other causes.
link incident alerts
A user notification, such as a graphic symbol in the Element Manager application Hardware
View that indicates that a link incident has occurred. See also
link incident log
Log, displayed through the Element Manager application, that provides a history of Fibre
Channel link incidents (with associated port numbers) for an individual director or switch. See
also
audit
log,
event
load balancing
Ability to evenly distribute traffic over multiple interswitch links within a fabric. Load
balancing on HP directors takes place automatically.
logical port address
The port numbering system for a director with the FICON Management Server active.
logical switch number
LSN. A two-digit number used by the I/O configuration program (IOCP) to identify a director
or switch.
logical unit number
(LUN) — In Fibre Channel addressing, a logical unit number is a number assigned to a storage
device, which, in combination with the storage device's node port's World Wide Name,
represents a unique identifier for a logical device on a storage area network.
24
trunk
cable.
log,
hardware
log, and
link
threshold alert
log.
incident.
Directors and Edge Switches Glossary