Installation guide

Chapter 3

Connecting to a DSSI Subsystem

VAX 6000 systems connect to tape and disk drives using several adapters.

This chapter describes the concepts of connecting to TF tape and RF disk

drives (known as integrated storage elements or ISEs) using the Digital

Storage System Interconnect (DSSI) bus supported by the KFMSA adapter.

Installation instructions are referenced in this chapter. For information on

connecting to TU, TK, and TA tapes, or RA disks, see Chapter 5, and for

connecting to a CI VAXcluster, see Chapter 4.

If your system has a CI adapter, complete the DSSI subsystem installation

before you begin the CI installation. Sections in this chapter include:

• DSSI Installation Overview

• Storage Architecture and Options

• DSSI and CI VAXclusters Compared

• DSSI Basics

KFMSA Adapter

Integrated Storage Elements (ISEs)

SF7x Enclosure Box

SF2xx Storage Array Cabinet

Single-Host Systems

Dual- and Tri-Host Systems

Cables

• Conﬁgure the DSSI Subsystem

Install DSSI Cables to ISEs

Set Node IDs

• Conﬁgure DSSI Subsystem with EVCXF

Example: Boot the VAX Diagnostic Supervisor

Example: Run the Autosizer

Example: Run EVCXF

Example: Changing the KFMSA Node ID at the I/O Panel

Example: Changing the KFMSA Node ID with EVCXF

Connecting to a DSSI Subsystem 3–1