Optional. Default: System mounted.

    Places the logical name in the system logical name table unless
    you specify the /GROUP or /SHARE qualifier. The client deletes
    the logical name from the system table when you dismount the
    volume.

    Restrictions:

    o  Requires SYSNAM privilege.

    o  The /GROUP, /SYSTEM, and /SHARE qualifiers are mutually
       exclusive.

    o  Without SYSNAM or GRPNAM privilege, you must use /SHARE for a
       job mount.