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

  Index not fully optimized (ERR=171)

  A record was successfully written to an  INDEXED  file,  however,  the
  alternate  key  path  was  not  optimized.   This slows record access.
  Delete the record and rewrite it.