Specifications

Glossary
Actuators Robotic components that move inside the library to manipulate cartridges.
These include the gripper, extension axis, and vertical and horizontal axes.
Archive The process of moving data from one medium to another where it is stored
for later use.
Autoloader A peripheral device that contains
A mechanism for moving cartridges sequentially or under program control
Several storage locations for storage media
One drive capable of reading or writing the media
Interface circuitry
When commanded by a host system, autochangers can transport media back
and forth between storage locations and the drive residing in the autoloader.
Automatic tape library A robotic storage and retrieval system for digital linear tape cartridges.
Backup The process of copying data to a secondary medium for protection in the
event that the original copy is lost and needs to be recovered.
Bar code label The identification label on digital linear tape cartridges.
Bin A storage receptacle for a tape cartridge.
Compression A procedure in which data is transformed by the removal of redundant
information in order to reduce the number of bits required to represent the
data.
Control panel The panel on the front of the library that contains the Status Display Area, as
well as the indicators and control button.
cPCI The "c" in cPCI stands for compact. PCI connectors on board-level devices
can use compact PCI (cPCI) connectors.
Differential See Single-ended.
DLT Digital linear tape. Linear tape recording technology (contrasted with helical
scan). Digital linear tape technology segments tape media into parallel,
horizontal tracks, and records data by running the tape past a stationary head.
digital linear tape provides higher performance than helical scan technology.
Fibre Channel A very high-speed, full-duplex data communications scheme that is
optimized to carry large blocks of data, with very low latency (10 to 30
msec.) for both channel-type and LAN-type connections.
Host The host computer system acting as controller for the drive.
Host adapter A device that connects a peripheral device I/O protocol and medium to the
computer system's I/O bus.
Host computer The computer that issues SCSI commands to control the library robotics.
Just the Facts May 2003 38