HP P6000 Continuous Access Implementation Guide (T3680-96431, August 2012)

Contact a third-party vendor to acquire and install all SMF optic cables, any MMF optic cables
longer than 50 meters, and the FC-to-IP interface boxes.
Configurations with application failover
The configurations in this section include host software that works with HP P6000 Continuous
Access to provide application and data failover capability.
HP Cluster Extension
HP 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. HP 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.
For more information, download the HP Cluster Extension documentation from the Manuals page
of the HP Business Support Center website:
http://www.hp.com/support/manuals
In the Storage section, click Storage Software and then select HP Cluster Extension Software in the
Storage Replication Software section.
The HP P6000 Continuous Access links must have redundant, separately routed links for each
fabric. The cluster network must have redundant, separately routed links. Cluster networks and HP
P6000 Continuous Access can share the same links if the link technology is protocol-independent
(for example, WDM) or if the Fibre Channel protocol is transformed to IP. Figure 6 (page 26)
shows an example of a cluster configuration.
NOTE: Most of the configurations shown in this guide will work with HP Cluster Extension provided
the configuration used meets all HP Cluster Extension and any underlying cluster software
requirements.
Figure 6 HP Cluster Extension configuration
7. Intersite link—blue fabric1. Data center 1
8. Host I/O and replication fabric—gold2. Data center 2
9. Intersite link—gold fabric3. LAN connection
26 Planning the remote replication fabric