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 Designing Disaster Tolerant HA Clusters Using Metrocluster and Continentalclusters:

Chapter 5 Building Disaster Tolerant Serviceguard Solutions Using Metrocluster with EMC SRDF
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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
Metrocluster with SRDF/Asynchronous Multi-Session Consistency Data Replication
Overview of SRDF/Asynchronous MSC Concepts
Configuring Metrocluster with EMC SRDF using SRDF/Asynchronous Multi-Session Consistency (MSC) Data Replication
Configuring a Package using SRDF/Asynchronous MSC
Setting up the RDF Daemon
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:



Completing and Running a Continental Cluster Solution with Continuous Access EVA
  		 


Files for Integrating Serviceguard with EMC SRDF  
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