Library /sys$common/syshlp/basichelp.hlb Run time errors, DEVHUNWRI  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Device hung or write locked (ERR=14)

  The program attempted an operation to a hardware device  that  is  not
  functioning  properly  or  is  protected  against  writing.  Check the
  device on which the operation is performed.