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222 Glossary
drive cleaning A library feature that uses a cleaning tape to clean a tape drive.
drive module The entire assembly that houses the drive, including the metal housing and
connectors.
differential SCSI A type of SCSI cable that can carry data a maximum of 25 meters.
E
event A significant function of the library displayed in the event log that reports drive
errors, online/offline transitions, drive cleaning, and other information.
F
fabric Switched interconnect methodology that supports high-speed data routing in
Fibre Channel networks.
Fibre Channel A switched protocol that allows concurrent communication among
workstations, supercomputers, mainframes, data storage devices, and other
peripherals. Fibre Channel is capable of transmitting at rates exceeding one
gigabit per second in both directions simultaneously.
Fibre Channel
Arbitrated
Loop (FC-AL)
Topology that provides a low-cost solution for attaching multiple Fibre Channel
ports in a loop without switches.
front panel display An LCD (liquid crystal display), equipped with five soft keys, mounted on the
front of the library (top level on multi-level libraries) that controls all library
functions.
G
GBIC Gigabit Interface Converter
H
hard errors Electronic errors in library functions that cannot be recovered. These errors are
recorded in the hard error log. May also be referred to as host interface card.
HBA Host Bus Adapter - A circuit board residing in the host system that handles
requests to and from the host system and the library. May also be referred to
as a host interface card.