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

  RRV not fully updated, (ERR=171)

  RMS wrote a record successfully, but did not update one or more Record
  Retrieval   Vectors.   Therefore,  you  cannot  retrieve  any  records
  associated with those vectors.  Delete the record and rewrite it.