HP StorageWorks Application Recovery Manager Administrator's Guide (T4395-96004, February 2008)

Appendix A
Cluster Configurations
Appendix A A-3
Cluster Configurations
Application Recovery Manager VSS integrations supports:
• Microsoft Cluster Server
On XP, if the application system is in a cluster, the backup system must
be outside this cluster (it may run in a different cluster, or may not be
part of a cluster at all). The reason for this limitation is that during
backup, the filesystem/database structure is active on the backup system
and would prevent an activation during failover.
For more information on cluster support, see the online Help index:
“cluster”.
Sections below discuss supported ZDB cluster configurations.
Figures A-2 to A-12 illustrate Application Recovery Manager backup
configurations and scenarios.
NOTE For applications in a cluster, use a floating IP address rather than a
static one. This allows a successful backup to start even after a local
failover.
Client on the Application System in a Cluster, Cell
Manager not in a Cluster
Scenarios • Application failover during backup: session fails and must be
restarted manually.
• Application failover before backup: session completes successfully.
Install:
• On the application system on all cluster nodes on local disks:
application binaries, Application Recovery Manager VSS integration
software component, Application Recovery Manager ZDB agent.
• On the application system cluster shared disk: application database.
Note that this shared disk must be a disk array replicated disk.