Qualstar XLS Series Installation Manual page 247

Library Resource
Module (LRM)
light curtain
logical library
LRM
LTO
LUN
Management
Information Base
(MIB)
Media Expansion
Module (MEM)
medium changer
MEM
MIB
nexus setting
parallel SCSI
physical library
XLS Library Installation Manual
The main library module that contains the system controller, touch screen,
status LEDs, power/PC bay, handler, tape drives, I/O ports, cartridge slots,
and optional equipment rack.
See Inventory Sentry.
One of up to eight partitions of the physical library. Logical libraries
ensure that each software application has dedicated and secure access to
specific tape drives, cartridge slots, and I/O ports. The handler is shared
among all logical libraries.
Library Resource Module. The XLS base unit.
Linear Tape Open. An industry standard 1/2-inch tape format also known
as Ultrium.
Logical unit number. A number between 0 and 7 assigned to each logical
library.
The specification and formal description of a set of objects and variables
that can be read and possibly written using the SNMP protocol.
The auxiliary library module that contains a motor-driven carousel with
storage for 1,080 cartridges. You can connect one or two MEMs to each
LRM, or you can place an LRM between two MEMs.
The library's SCSI controller. The medium changer responds to SCSI
commands sent by initiators (or host applications) and sends instructions
to the system controller to move cartridges between tape drives, cartridge
slots, and I/O ports.
Media Expansion Module. The XLS expansion unit that contains a
carousel.
Management Information Base.
A unique combination of port ID, target (or SCSI) ID, and logical unit
number (LUN) that describes each logical library connection.
One of the communication protocols supported by the library. The parallel
SCSI protocol defines the rules and processes for transmitting and
receiving data over a parallel (multi-signal) I/O bus.
The entire library, including all tape drives, cartridge slots, the robotics,
and the I/O ports.
Glossary
GL-3