HP StorageWorks P9000 Cluster Extension Software Administrator Guide (TB534-96009, February 2011)

3 Configuring P9000 Cluster Extension for Linux
P9000 Cluster Extension supports integration with the following cluster software for Linux:
• RHCS. See “Configuring P9000 Cluster Extension with RHCS” (page 54).
• SLE HA. See “Configuring P9000 Cluster Extension with SLE HA” (page 60).
NOTE: For a list of P9000 Cluster Extension versions and the cluster software versions they
support, see the HP SPOCK website: http://www.hp.com/storage/spock.
P9000 Cluster Extension for Linux: Sample configuration
“Sample configuration” (page 53) shows a sample configuration with RHCS or SLE HA and P9000
Cluster Extension.
Figure 6 Sample configuration
The configuration example in “Sample configuration” (page 53) assumes the following information
about the cluster:
• There are four nodes in the cluster: Host1, Host2, Host3, and Host4.
• There are two disk arrays with serial numbers 30047 and 30053.
• The device/copy group clxwebvgs is configured in the RAID Manager
/etc/horcm101.conf file.
• P9000 Cluster Extension invokes the pre-executable script clxweb_pre_takeover.sh and
the post-executable script clxweb_post_takeover.sh. These files can be an executable
script or a program of your choice.
• For RHCS, the configuration file /etc/opt/hpclx/conf/CLXP9000.config is associated
with the RHCS service CLXWEB that is configured to use the P9000 Cluster Extension resource
agent script. RHCS invokes the resource agent script to start the CLXWEB service, which checks
the disk pair states before the volume groups vgweb and vghtdocs are activated and the
web server is started. The RAID Manager device/copy group clxwebvgs includes all disks
P9000 Cluster Extension for Linux: Sample configuration 53