Library /sys$common/syshlp/sysmanhelp.hlb DISKQUOTA, REMOVE, Example  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  SYSMAN> SET ENVIRONMENT/NODE=MARS
  SYSMAN> SHOW PROFILE
  %SYSMAN-I-DEFDIR, Default directory on node MARS  -- WORK2:[CASEY]
  %SYSMAN-I-DEFPRIV, Process privileges on node MARS --
          TMPMGX
          OPER
          NETMBX
          SYSPRV

  SYSMAN> DISKQUOTA REMOVE /DEVICE=DUA45: [TTD,DAVIS]

      These commands remove UIC [TTD,DAVIS] from the quota file for
      disk DUA45, which is located on node MARS.