HP StorageWorks XP Cluster Extension Software Administrator Guide (T1656-96035, April 2010)

4 Configuring XP Cluster Extension for
Solaris
HP StorageWorks XP Cluster Extension for VCS provides a resource agent to VCS. This allows cluster
administrators to configure the XP disk array-specific failover behavior as easily as any other resource
in VCS. XP Cluster Extension objects are configured as attributes of a resource in VCS.
For information about how to install XP Cluster Extension, see the HP StorageWorks XP Cluster Extension
installation guide.
For supported configurations, see the HP SPOCK website: http://www.hp.com/storage/spock.
Configuration of the XP Cluster Extension agent
The XP Cluster Extension agent is preconfigured to fit most of your cluster configurations. It comes with
a sample configuration that can be modified to fit your VCS and disk array environments. Before
configuring the XP Cluster Extension agent, review VCS resource attributes of the XP Cluster Extension
resource type.
Disaster tolerant configuration example using a web server
The following example describes a configuration in which:
• There are four systems: sunrise, dawn, sunset, and dusk.
• There are two disk arrays with serial numbers 35014 and 35013.
• web is configured as a device group in the XP RAID Manager /etc/horcm11.conf file.
• A pre-executable web_pre.sh and a post-executable web_post.sh will be invoked by XP
Cluster Extension.
• You are using the default failover behavior for the service group.
The resource clx_web is part of the service group CLX_WEB_SERVER, and must be brought online
before the DiskGroup resources webdg and httpddg. The XP RAID Manager device group web
includes all disks for the VxVM disk groups webdg and httpddg in the following example. Figure
7 on page 76 illustrates failover options and shows a second service group, CLX_ORACLE.
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