Closed Source, Resource driven cluster, scales to 32 nodes, includes active monitoring and local recovery. Uses SCSI reservations or the Veritas Volume Manager for Data based fencing. Uses closed source kernel modules (which are only available for certain versions of Red Hat) for SCSI reservations and Cluster Communication. Cluster server will only run on a kernel with proprietary modifications. No support for replication on Linux[*].
https://www.veritas.com/Products/van?c=product&refId=20