The SAS utility (SAS$UTIL) is supported on Integrity servers only.

    SAS is an OpenVMS system management and diagnostic tool that is
    capable of configuring Integrated RAID (IR) functionality for
    the HP 8 Internal Port Serial Attached SCSI Host Bus Adapter (SAS
    Controller).

    Integrated RAID (IR) is used where extra performance, storage
    capacity, or redundancy of a RAID configuration, or all three,
    are required. OpenVMS Version 8.3 supports only Integrated RAID 1
    or Integrated Mirroring (IM) and its associated Global Hot Spare
    capability.