HP EML E-series Tape Libraries - Manual (Page 106)

Glossary
array (1) A section of vertical or horizontal tape cartridge receptacles inside a library.
(2) A molded unit that holds multiple cartridges.
backplane The storage system electronic printed circuit board into which storage system devices can be
plugged.
barcode reader A component of the robot that is used for tape cartridge identification and position calibration.
base module The 12U module in every HP Enterprise Modular Library E-Series that contains the robot, tape
drives, and card cage for controller cards. For slot numbering purposes, the base module is
divided into a base unit (8U) and tape drive expansion module (4U).
card Also called printed wire assembly or printed circuit board.
cartridge The plastic housing around a cartridge tape. A plastic leader block is attached to the tape for
automatic threading when loaded in transport. The spine of the cartridge contains a label listing
the volume identification number.
cartridge array See array..
center door A door on the center-front of a library through which service personnel or operators can access
the interior of the library.
Class A digital
device Class A equipment is intended for commercial installation.
Class I laser
product Class 1 lasers are products where the power of the laser beam produced (the accessible emission)
is always below the Maximum Permissible Exposure value. Therefore, for Class 1 lasers the output
power is below the level at which it is believed eye damage will occur. Exposure to the beam of
a Class 1 laser will not result in eye injury. Class 1 lasers may therefore be considered eye safe.
Class II laser
product Class 2 lasers are limited to a maximum output power of 1 mW. A person receiving an eye
exposure from a Class 2 laser, either accidentally or as a result of someone else's deliberate
action (misuse) will be protected from injury by their natural blink reflex. This is a natural involuntary
response which causes the individual to blink and avert their head thereby terminating the eye
exposure.
cleaning cartridge A tape cartridge that contains special material to clean the tape path in a transport or tape drive.
LTO cleaning cartridges labels have CLN prefixes.
CLI Command Line Interface
CompactPCI (cPCI) Industry standard bus used for card-to-card bus expansion.
containment box A box in the HP Enterprise Modular Library robot that holds the lift-flex cable. The cable retracts
into the box as the table is raised.
data cartridge A term used to distinguish a cartridge onto which a tape drive may write data from a cartridge
used for cleaning purposes.
drive The device that the library uses to record data onto tapes. Also called tape drive.
drive cleaning A library feature that uses a cleaning cartridge to clean a tape drive.
drive module The entire assembly that houses the tape drive, including the metal housing and connectors.
ESD Electrostatic discharge. The release of static electricity from one conductor to another.
Ethernet A local-area, packet-switched network technology. Originally designed for coaxial cable, it is
now found running over shielded, twisted-pair cable. Ethernet is a 10- or
100-megabytes-per-second LAN.
event A significant library occurrence (such as tape drive errors, online/offline transition, tape drive
cleanings, and other information) that is listed in an automated log.
export The action in which the library places a tape cartridge into the load port so that the operator can
remove the cartridge from the library.
Fibre Channel A bidirectional, full-duplex, point-to-point, serial data channel structured for high performance
capacity. The Fibre Channel is an interconnection of multiple communication ports, called N_Ports.
These N_Ports are interconnected by a switching network, called a fabric, to a point-to-point link,
106 Glossary