HP StorageWorks Enterprise Modular Library E-Series user guide (AH876-96001, October 2007)

Glossary
array (1) A section of vertical or horizontal tape car tridge 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.
bar cod e reader A component of the robot that is used for tape cartridge identification and
position calibration.
base modul e The12UmoduleineveryHPEnterpriseModularLibraryE-Seriesthatcontains
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 boa rd.
cartridge The p lastic 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 c ontains a label listing the volume identification number.
cartridge array See array.
center door A door o n the center-front of a library through which ser vice personnel or
operators can access the interior of the library.
Class A digital
device
Class A equipment is intended for com m ercial installation.
Class I laser prod-
uct
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 o ccur. Exposure to the beam of a Class 1 laser will
not result i n eye injury. Class 1 lasers may therefore be considered eye safe.
Class I I laser prod-
uct
Class 2 lasers are limited to a m aximum output power of 1 mW. A person
receiving an eye exposure from a Class 2 laser, either accidentally or as a result
ofsomeoneelse’sdeliberateaction(misuse)willbeprotectedfrominjuryby
their natural blink reflex.Thisisanaturalinvoluntaryresponsewhichcausesthe
individual to blink and avert their head thereby terminating the eye exposure.
cleaning cartridge A tape car tridge that contains special material to clean the tape path in a
transport or tape drive. LTO cleaning car tridges labels have CLN prefixes.
CLI Command Line Interface
CompactPCI (cPCI) Industry standard bus used for card-to-card b us expansion.
containment box A box in the HP Enterprise Modular Library robot tha t holds the lift-flex cable.
The cable retracts into the box as the tab le is raised.
data cartridge A term used to distinguish a car tridge 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 o nto tapes. Also called tape drive.
drive cleaning A library feature that uses a cleaning cartridge to clean a tape drive.
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