When you specify any of the following qualifiers, the operational
    status of the drive is changed: /ABORT_VIRTUAL_UNIT, /AVAILABLE,
    /COPY_SOURCE, /DUAL_PORT, /ENABLE, /ERROR_LOGGING, /FORCE_
    REMOVAL, /MEMBER_TIMEOUT, /MVTIMEOUT, /POLL, /READ_COST, /SITE,
    or /SWITCH.

    When you specify the /SPOOLED qualifier, program output that uses
    OpenVMS Record Management Services (RMS) or file control system
    (FCS) and that specifies the print device name is written onto
    an intermediate disk rather than written directly to the print
    device or terminal.