Metrocluster with 3PAR Remote Copy for Linux Version B.12.00.00 Release Notes
Support for Cluster Verification
Metrocluster for Linux supports verification of its packages. By using the cmcheckconf -v
command, you can generate a report on the sanity of the cluster configuration.
For more information on the validations that are performed, see Building Disaster Recovery
Serviceguard Solutions Using Metrocluster with 3PAR Remote Copy for Linux B.12.00.00 available
at http://www.hp.com/go/linux-serviceguard-docs.
Support for Remote Copy volume group monitor
In a Metrocluster 3PAR environment, Remote Copy volume group monitor provides the capability
to monitor the status of the Remote Copy volume group used in a package. It sends notifications
to the user via email, syslog, OPC, or console. The notifications are sent when:
• There is a change in a Remote Copy volume group status.
• The monitor cannot determine the Remote Copy volume group status.
For more information on Remote Copy volume group monitor in a Metrocluster Solution, see Building
Disaster Recovery Serviceguard Solutions Using Metrocluster with 3PAR Remote Copy for Linux
B.12.00.00 available at http://www.hp.com/go/linux-serviceguard-docs.
Support for VMWare virtual machines as Metrocluster nodes
Metrocluster for Linux includes support for configuring VMWare virtual machines as Metrocluster
nodes. All Serviceguard related restrictions and guidelines for configuring VMWare virtual machines
as Serviceguard nodes are also applicable to Metrocluster configurations.
In Metrocluster configurations, only Raw Device Mapping (RDM) is supported. In Metrocluster
configurations, only Raw Device Mapping (RDM) is supported. Each VM guest that is part of
Metrocluster must be from different ESX host. No two or more guests should belong to an ESX host.
Support for Easy Deployment
With Metrocluster 3PAR B.12.00.00 for Linux, Metrocluster supports the package easy deployment
feature. This feature is only available from the Serviceguard Manager for Linux version B.12.00.00
or later. It provides a simple way to quickly deploy Metrocluster 3PAR modules in supported toolkit
applications.
Support for 32 nodes in a cluster
Metrocluster 3PAR B.12.00.00 for Linux supports 32 nodes in a cluster.
Support for online reconfiguration of the packages
With Metrocluster 3PAR B.12.00.00 for Linux, you can modify the Metrocluster 3PAR package
attributes values while the package is up and running.
Support for 3PAR features
Support for Synchronous Replication mode
Metrocluster with 3PAR Remote Copy for Linux version B.12.00.00 includes support for synchronous
replication mode. HP 3PAR Remote Copy software offers synchronous and asynchronous periodic
data transfer mode between the storage systems. Synchronous data transfers offer the highest levels
of data availability. With synchronous operations, both the primary and secondary copies are
identical and concurrent at all times. Synchronous replication is appropriate when data currency
is critical while recovering a business application.
Features supported in B.12.00.00 version 5