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Quantum ATL M2500 Library User’s Guide Addendum—Prism FC420 Bridge Option

Document 6473031-01, Ver. 1, Rel. 1

August 2002

Introduction 3

Introduction 0

This addendum supplements the Quantum ATL M-Series Library User’s

Guide by describing the configuration and operation of the FC420 Fibre

Channel Bridge option installed in the Quantum ATL M2500 library.

For FC420 installation steps, refer to the FC420 Fibre Channel Bridge

Quick Reference Guide (PN 6473033).

For a description of M-Series library operating procedures, see the

Quantum ATL M-Series Library User’s Guide (PN 6423002).

Fibre Channel

Overview

The Quantum ATL M2500 library is controlled by a host computer via

a SCSI differential bus using the SCSI-2 medium changer command

set. The library’s Prism Architecture™ allows for easy conversion from

the SCSI host interface to a Fibre Channel host interface by installing

the FC420 Bridge option.

Fibre Channel is a serial data transfer architecture for use with

computers and mass storage devices. Fibre Channel is rapidly

emerging to challenge SCSI as the interface of choice for host-to-

storage applications.

Fibre Channel advantages include:

• Connection distances of up to 500 meters

• Up to 2 GB/sec data transfer rates with Autonegotiate

• Support for up to 126 devices on a loop

• Support for 24-bit addressing for over 16 million devices in

point-to-point mode or fabric, when using a Fibre Channel switch

or multiple Fibre Channel switches.

• Operating system independence

• Interconnect flexibility

• Fibre Channel fabric switches provide full direct connectivity

between all ports on a network, which can increase the total

throughput of all devices on a network.

Library Operation

After Prism FC420

Bridge Installation

Once the Prism FC420 Bridge SCSI to Fibre Channel option is installed

and tested, the library operates exactly as a library with a SCSI host

interface. User operation of the library via the graphical user interface

(GUI) panel is unchanged.

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