The server received a RETR command to retrieve a tape data set when TAPEREADSTREAM is configured. The tape data set appears to meet the requirements for the TAPEREADSTREAM configuration. However, if the tape data set contains <NL> characters, FTP cannot translate the <NL> characters correctly so the format might be incorrect.
The file transfer continues.
To change the TAPEREADSTREAM value permanently, change the TAPEREADSTREAM statement in FTP.DATA. For more information about the TAPEREADSTREAM statement, see z/OS Communications Server: IP Configuration Reference.