HP StorageWorks Disk Array XP Operating System Configuration Guide: DYNIX (A5951-96200, October 2004)

Installation 19
Clustering and Fabric zoning
If you plan to use clustering, install and configure the clustering software
on the servers. Clustering is the organization of multiple servers into
groups. Within a cluster, each server is a node. Multiple clusters compose a
multi-cluster environment. The following example shows a multi-cluster
environment with three clusters, each containing two nodes. The nodes
share access to the disk array.
Within the Storage Area Network (SAN), the clusters may be homogeneous
(all the same operating system) or they may be heterogeneous (mixed
operating systems). How you configure LUN Security and fabric zoning
depends on the operating system mix and the SAN configuration.