Understanding and Designing Serviceguard Disaster Tolerant Architectures:

List of Figures

1-1 High Availability Architecture.

1-2 Disaster Tolerant Architecture

1-3 Extended Distance Cluster

1-4 Metropolitan Cluster

1-5 Continental Cluster

1-6 Cascading Failover Data Center Distribution Using Metrocluster

1-7 Three Data Center Solution Overview

1-8 Physical Data Replication

1-9 Logical Data Replication

1-10 Alternative Power Sources

1-11 Reliability of the Network is Paramount

1-12 Highly Available FDDI Network: Two Options

1-13 Routing Highly Available Ethernet Connections in Opposite Directions

2-1 Two Data Centers with FibreChannel Hubs

2-2 Two Data Centers with FibreChannel Switches and FDDI

2-3 Two Data Centers with DWDM Network and Storage

2-4 Two Data Centers and Third Location with DWDM and Arbitrators

2-5 Two Data Centers and Third Location with DWDM and Quorum Server