User's Guide

Glossary
314 Quantum DX-Series Software Interface Guide
DX-Series system A backup device based on hard drives.
E
element A discrete physical entity that can hold a single tape cartridge
and is represented by a unique 16-bit element address. SCSI elements
include storage bins, tape drives, load port bins, and the gripper.
F
FCC Class A Standard established by the U.S. Federal Communications
Commission governing electromagnetic emissions.
G
gripper assembly The assembly that grips cartridges.
H
host computer The computer that issues SCSI commands to control the
DX-Series system robotics.
I
identify (initiator to target) message This SCSI-2 message is sent to
establish communication with the DX-Series system.
identify (target to initiator) The host sends this SCSI-2 message to the DX-
Series system to identify the DX-Series system to which the command is
being sent.
inquiry command Determines devices attached to the SCSI bus and
request a description from each device.
initialize element status command Allows the host to request an
inventory of the tape cartridges held in a DX-Series system.
initialize element status with range command Allows the host to request
an inventory of a range of elements in the DX-Series system.
initialization sequence Actions that occur when the DX-Series system is
initially powered on. This includes a DX-Series system reset,
initialization of all hardware and a response to the Inquiry, Request
Sense, Log Sense, and Mode Sense commands.
initiator detected error message This SCSI-2 message is sent to the DX-
Series system to inform it that an error has occurred that does not
preclude the DX-Series system from retrying the operation.
L
log sense command Retrieves statistical information maintained by the
logical unit.