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.
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Disk Array XP operating system configuration guide: HP-UX