CONTENTS

  Title Page

  Copyright Page

  How to Use This Manual

  1      Fault-Tolerant Communications Using the DEC WANcontroller 620

  1.1     Introduction to the DSF32

  1.2     Fault-Tolerant Communications and Failover Set Management

  2      Configuring a Fault-Tolerant Communications Link

  2.1     Connecting the DSF32 Hardware
    2.1.1      DSF32 Slot Connections
    2.1.2      Recommendations on Redundant Partners
    2.1.3      Creating SM Devices
    2.1.4      Naming SM Devices
    2.1.5      Naming SF Devices

  2.2     Creating a Failover Set

  3      Managing Failover Sets

  3.1     Management Commands

  3.2     Mail Notification of Failover Set Problems

  4      Reconfiguring a Failover Set when Removing a Module for Repair

  4.1     DSF32 States and Failure Conditions

  4.2     Removing the Module and Reconfiguring the System

  5      WANDD$FSM Command Reference Information

  ADD

  ATTACH

  EXIT

  HELP

  REMOVE

  SET

  SHOW

  SPAWN

  A   Failover Set Manager Error Messages

  A.1     Error Messages

  A.2     OPCOM Messages

  FIGURES

  2-1        Dual-Zone VAXft Series Configuration

  2-2        Fault-Tolerant DSF32 Configuration

  TABLES

  2-1        SF and SM Controller Partnerships

  2-2        Slot and Controller Assignments