OpenVMS Cluster configurations can be configured with systems that operate and are licensed explicitly as client systems. OpenVMS Cluster Client licensing is provided as part of the NAS150 layered product. OpenVMS Cluster Client systems contain full OpenVMS Cluster functionality, with the following exceptions: - Client systems cannot provide votes toward the operation of the OpenVMS Cluster system. - Client systems cannot MSCP serve disks or TMSCP serve tapes.
Read more about OpenVMS Cluster Software here.