Building Disaster Recovery Serviceguard Solutions Using Continentalclusters for Linux B.01.00.00

Creating data replication between the clusters
Data replication between the Serviceguard clusters in a Continentalclusters recovery pair extends
the scope of high availability to the level of the Continentalclusters. Select a technology for data
replication between the two clusters. There are many possible choices, including:
• Logical replication of databases
• Logical replication of file systems
• Physical replication of data volumes via software
• Physical replication of disk units via hardware
For more information on these replication technologies, see Understanding and Designing
Serviceguard Disaster Recovery Architectures manual available at http://www.hp.com/go/
linux-serviceguard-docs.
The ways of creating data replication between the primary and the recovery clusters are:
• Array based physical replication supported by Metrocluster for Linux products.
• Any other array based physical replication technology.
• Logical replication.
Continentalclusters for Linux offers flexibility in choosing the data replication method to enable
recovery.
Using array based physical replication supported by Metrocluster
The following array based physical replication solutions are supported with Metrocluster:
• HP XP P9000 Continuous Access
• HP EVA P6000 Continuous Access
• HP 3PAR Remote Copy
For specific guidelines and steps to configure data replication, see the following manuals:
For XP P9000 for Linux, see Building Disaster Recovery Serviceguard Solutions Using Metrocluster
with Continuous Access XP P9000 for Linux B.01.00.00http://www.hp.com/go/
linux-serviceguard-docs.
For EVA P6000 for Linux, see Building Disaster Recovery Serviceguard Solutions Using Metrocluster
with Continuous Access EVA P6000 for Linux B.01.00.00http://www.hp.com/go/
linux-serviceguard-docs.
For 3PAR Remote Copy for Linux, see Building Disaster Recovery Serviceguard Solutions Using
Metrocluster with 3PAR Remote Copy for Linux B.01.00.00http://www.hp.com/go/
linux-serviceguard-docs.
To use these data replication solutions in a Continentalclusters environment it is necessary to
separately purchase either the Metrocluster with Continuous Access XP P9000 for Linux, or
Metrocluster with Continuous Access EVA P6000 for Linux, or Metrocluster with 3PAR Remote
Copy for Linux products.
After configuring data replication using any one of the listed arrays, the applications in the cluster
that requires disaster recovery must be packaged with the appropriate Continentalclusters package
module. This must be done at both the primary and the recovery clusters.
10 Building the Continentalclusters configuration