Metrocluster with Continuous Access XP Version A.11.00 Release Notes, August 2010 (B8109-90027)

Support for Remote Command Device
Starting with this version, Metrocluster with Continuous Access XP includes support
for remote command device. A remote command device is a device to which a command
device in a remote XP array is mapped. A remote array P9000 RAID Manager must be
configured using the remote command device. Using a remote array RAID manager
instance, it is possible to get the status of the device group on the remote XP array even
when the remote hosts are inaccessible.
The remote command device can be configured using one of the following methods:
• Using the XP external storage feature.
• Using extended SAN.
For more information on configuring remote array P9000 RAID Manager, see Designing
Disaster Tolerant HA Clusters using Metrocluster and Continentalclusters, September 2010
available at http://www.hp.com/go/hpux-serviceguard-docs —> HP Metrocluster.
Support for Modular Packages in Three Data Center Solution
Starting with this version, Metrocluster with Continuous Access XP includes support
for creating Modular packages in Three Data Center Solution (3DC solution) without
the need for configuring the environment file. All parameters that were earlier
configured in the Metrocluster environment file can now be configured in the package
configuration file.
For more information on creating Modular packages in 3DC solution, see Chapter 6 of
the Designing Disaster Recovery HA Clusters Using Metrocluster and Continentalclusters,
September 2010 document available at http://www.hp.com/go/hpux-serviceguard-docs
—> HP Metrocluster.
Support for Complex workloads in 3DC solution using SADTA
Starting with this version, Metrocluster with Continuous Access XP includes support
for deploying complex multi-instance workloads such as Oracle RAC and SAP in 3DC
solution using SADTA. Complex workloads are applications configured using multiple
interdependent failover and multi-node packages.
For more information on configuring complex workloads in 3DC solution using SADTA,
see the Designing Disaster Recovery HA Clusters Using Metrocluster and Continentalclusters,
September 2010 document available at http://www.hp.com/go/hpux-serviceguard-docs
—> HP Metrocluster.
Timing Considerations
The Metrocluster with Continuous Access XP gets the device status from the XP series
array and/or synchronize the device group during package startup. The time taken by
package startup depends upon the number of disk devices configured. Packages with
many disk devices will take longer to start up than those with fewer devices.
8 Metrocluster with Continuous Access XP Version A.11.00 release notes