HP P6000 Cluster Extension Software Administrator Guide (5697-0986, June 2011)

1 P6000 Cluster Extension features
HP P6000 Cluster Extension offers protection against application downtime due to a fault, failure, or
site disaster by extending a local cluster between data centers over metropolitan distance. P6000
Cluster Extension reinstates critical applications at a remote site within minutes of an adverse event,
integrating your open-system clustering software and HP P6000 Continuous Access to automate
failover and failback between sites. This dual integration enables the cluster software to verify the
status of the storage and the server cluster. The cluster software can then make correct failover and
failback decisions, thus minimizing downtime and accelerating recovery.
Integration into cluster software
P6000 Cluster Extension Software provides tight integration with the cluster software and is managed
as a resource of the clustered application service (like a disk or IP address).
P6000 Cluster Extension integrates with the following cluster software products:
• Microsoft Cluster Service (MSCS)
• SUSE Linux Enterprise High Availability Extension (SLE HA)
• Red Hat Cluster Suite (RHCS)
For supported cluster software versions, see the HP SPOCK website: http://www.hp.com/storage/
spock.
Graphical user interface
P6000 Cluster Extension for Windows can be configured using the Cluster Administrator (Windows
Server 2003) or Failover Cluster Management (Windows Server 2008 /2008 R2) GUI. P6000 Cluster
Extension offers full integration into the GUI so that you can easily set and change resource values.
NOTE:
For Linux environments, configuring P6000 Cluster Extension resources with a GUI is not supported.
You must use a P6000 Cluster Extension configuration file to configure P6000 Cluster Extension
resources.
CLI for easy integration
P6000 Cluster Extension provides a CLI to enable disaster tolerant environments if no cluster software
is available for your operating system or if you want to integrate HP P6000 Continuous Access with
your choice of cluster software.
This feature is useful if you use custom software to migrate application services from one system to
another or if you want P6000 Cluster Extension to check the DR group member states to ensure that
you can automatically start your application service on the local storage system.
For detailed information, see “CLI commands and utilities” on page 87.
HP P6000 Cluster Extension Software Administrator Guide 9