HP Serviceguard Cluster Configuration for HP-UX 11i or Linux Partitioned Systems, April 2009

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The partitioning provided by nPartitions—available in HP-UX 11i v2 and HP-UX 11i v3—is done at a
hardware level and each partition is isolated from both hardware and software failures of other
partitions. vPars partitioning and Integrity VM are implemented at a software level. This provides
greater flexibility in dividing hardware resources as shown in Figure 1.
Figure 1. Sample nPartitions, VPARS, and Integrity VM configurations
vPars or Integrity VM can be combined with nPartitions to create a more complex configuration. This
means that vPars software partitions or Integrity VM can be configured within the context of a
hardware nPartition. Figure 2 illustrates an example of a configuration where an nPartition, hardware
partition 1, contains two vPars.