Designing Disaster Tolerant High Availability Clusters, 10th Edition, March 2003 (B7660-90013)

Building a Metropolitan Cluster Using MetroCluster/CA
Overview of MetroCluster/CA
Chapter 3 71
MetroCluster/CA has to be installed on all nodes that will run a
ServiceGuard package whose data are on an HP StorageWorks E Disk
Array XP Series where the data are replicated to a second XP using the
Continuous Access XP facility. In the event of node failure, the
integration of MetroCluster/CA with the package will allow the
application to fail over in the following ways:
• among local host systems attached to the same XP Series array
• between one system that is attached locally to its XP and
another “remote” host that is attached locally to the other XP
Configuration of MetroCluster/CA must be done on all the cluster nodes,
as is done for any other MC/ServiceGuard package. To use
MetroCluster/CA, Raid Manager XP host-based software for control and
status of the XP Series boxes must also be installed and configured on
each HP 9000 host system that might execute the application package.