VCS system requirements
This section describes system requirements for VCS.
The following information does not apply to SF Oracle RAC installations.
VCS supports an environment where a few nodes in the cluster are hosted on LPARs with storage and network connectivity presented to the OS using VIOS. The remaining nodes in the cluster are hosted on physical systems with storage and network connectivity presented to the OS directly. However SCSI3 I/O fencing will be supported in this environment only if storage is available through NPIV in the LPARs. If NPIV is not available in LPARs, non-SCSI3 fencing is supported.
VCS requires that all nodes in the cluster use the same processor architecture and all nodes in the cluster must run the same VCS version. However, the nodes can have different versions of the supported operating system.