The Expansion Unit; The Base Module - Compaq TL891 - DLT Tape Library User Manual

User guide

Table of Contents

The Expansion Unit

Description

The Expansion Unit integrates the robotics in the individual modules into a

single coordinated library robotics system. The Expansion Unit performs and

maintains an inventory of all media present in the system, including bar code

data. All necessary system control operations may be performed from the

control panel of the Expansion Unit, as well as from the host via software. The

SCSI interface for the library robotics is designed for high-speed

communication with the host, and Fast/Wide SCSI configurations.

In addition to its system control functions, the Expansion Unit has a 16-

cartridge magazine with a rugged random access robotic mechanism. The

module robotics moves cartridges between the pass-through mechanism and

any of the 16 cartridge storage locations.

The user may designate a magazine in one of the base modules as a mail slot

for inserting or removing one or more single cartridges, which implements the

SCSI Import/Export commands.

NOTE: A magazine that has been reserved for Import/Export service may not be used for

data storage.

Description

The Base Module has one or two TZ89 tape drives and a 10-cartridge

magazine with a rugged random access robotic mechanism.

Models

The TL891 using one or two TZ89 series drives, also use the DLTtape IV

cartridges, which provide a native capacity of 35 GB per cartridge. All models

can also read and write DLTTape III and DLTtape IIIxt cartridges. Both read

and write densities are selectable from the front panel, and under SCSI control

from the host.

Compaq Confidential – Need to Know Required

Writer: Everett Godaire Project: TL891 MiniLibrary System User's Guide Comments:

Part Number: ER-TL891-UA.A01 File Name: b-ch1 Introduction Last Saved On: 3/1/99 4:07 PM

Introduction 1-3

Table of Contents

Tl891 minilibrary