Chapter 7 Building Disaster Tolerant Serviceguard Solutions Using Metrocluster with EMC SRDF

Table of Contents

Files for Integrating Serviceguard with EMC SRDF

Overview of EMC and SRDF Concepts

Preparing the Cluster for Data Replication

Installing the Necessary Software
Building the Symmetrix CLI Database
Determining Symmetrix Device Names on Each Node

Building a Metrocluster Solution with EMC SRDF

Setting up 1 by 1 Configurations
Grouping the Symmetrix Devices at Each Data Center
Setting up M by N Configurations
Creating Symmetrix Device Groups
Configuring Gatekeeper Devices
Creating the Consistency Groups
Creating Volume Groups
Creating VxVM Disk Groups using Metrocluster with EMC SRDF
Validating VxVM Disk Groups using Metrocluster with EMC SRDF
Additional Examples of M by N Configurations
Configuring Serviceguard Packages for Automatic Disaster Recovery
Maintaining a Cluster that uses Metrocluster with EMC SRDF
Managing Business Continuity Volumes
R1/R2 Swapping

Some Further Points

Metrocluster with SRDF/Asynchronous Data Replication

Overview of SRDF/Asynchronous Concepts
Requirements for using SRDF/Asynchronous in a Metrocluster Environment
Preparing the Cluster for SRDF/Asynchronous Data Replication

Configuring Metrocluster with EMC SRDF using SRDF/Asynchronous

Building a Device Group for SRDF/Asynchronous
Package Configuration using SRDF/Synchronous or SRDF/Asynchronous
Package Failover using SRDF/Asynchronous
Protecting against a Rolling Disaster
Limitations and Restrictions

Building a Continental Cluster Solution with EMC SRDF

Setting up a Primary Package on the Primary Cluster
Setting up a Recovery Package on the Recovery Cluster
Setting up the Continental Cluster Configuration
Switching to the Recovery Cluster in Case of Disaster
Failback Scenarios
Maintaining the EMC SRDF Data Replication Environment

The EMC and Symmetrix Remote Data Facility (EMC SRDF) disk arrays allows configuration of physical data replication solutions to provide disaster tolerance for Serviceguard clusters over long distances. This chapter describes the EMC SRDF software and the additional files that integrate the EMC with Serviceguard clusters. It then shows how to configure both metropolitan and continental cluster solutions using EMC SRDF.

The topics discussed in this chapter are:

Chapter 7 Building Disaster Tolerant Serviceguard Solutions Using Metrocluster with EMC SRDF

Technical documentation

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