FailSafe™ Architecture for SGI®InfiniteStorage

Document Number: 007-4650-001

Front Matter

| List of Figures | List of Tables |

Table of Contents

1. Introduction

2. Software Layers

3. Communication Paths
Communication Paths in a FailSafe Cluster
Communication Paths in a Coexecution Cluster

4. Cluster Database Components

5. Memberships and Quorums
Membership Types
Cluster Database Membership Logs
Quorum and Tiebreaker Examples
Heartbeat Considerations

6. Execution of FailSafe Action and Failover Scripts
When a start Script Fails
When a stop Script Fails

7. Interface Agent Daemon (IFD)