HP StorageWorks XP Cluster Extension Software Installation Guide (T1656-96034, April 2010)

General installation prerequisites
CAUTION:
If you do not meet the prerequisite conditions for XP RAID Manager, the XP Cluster Extension installation
might complete successfully, but you will not be able to complete the XP Cluster Extension configuration
procedures.
Before installing XP Cluster Extension, ensure that:
• Software patches, FC adapter firmware, and drivers are the latest versions.
• XP RAID Manager is installed and configured on each cluster node.
• XP RAID Manager versions are the same on all nodes in a cluster.
• XP RAID Manager command devices are configured.
• XP RAID Manager horcmX.conf files have been created and tested.
• One XP RAID Manager device group is configured for each XP disk array pair.
• LDEVs are mapped to redundant XP CHAs, and host modes and Fibre Channel port settings have
been customized.
• XP Continuous Access links (including all extender hardware) are redundant and bidirectional.
• Alternate I/O paths between the server and the XP disk array are set up.
• The cluster and client networks are redundant.
• The cluster software is installed on all servers (AIX, Linux, and Solaris only; MSCS is part of the
Windows OS installation).
• The cluster is set up, and clustered servers can communicate with each other (AIX, Linux, and
Solaris only).
• The pair/resync monitor port is set up in the /etc/services file (AIX, Linux, and Solaris only).
For more information, see the HP StorageWorks XP Cluster Extension Software Administrator
Guide.
• A failover test proves bidirectional communications in the XP Continuous Access setup for all
configured XP CUs.
• Download the XP Cluster Extension Software.
1. Browse to http://www.hp.com/go/softwaredepot.
2. Click Storage and NAS in the product category list.
3. Follow the on-screen instructions to download the installer.
Requirements for XP RAID Manager instances
When working with XP RAID Manager instances, be aware of the following:
• XP RAID Manager instances can communicate using the most reliable network (heartbeat network)
and at least one alternate network.
• Application services using XP Cluster Extension must use the same XP RAID Manager instances.
• To provide the best failover capability, XP RAID Manager instances should be running at all times.
XP Cluster Extension provides a script to start XP RAID Manager instances in the system boot process.
• For rolling disaster protection, use the same XP RAID Manager instances to manage XP Business
Copy pairs.
Preparing to install XP Cluster Extension Software8