FTP Client Message about leading sequence numbers

Cause

The SEQNUMSUPPORT option was added to the FTP client in z/OS 1.9. Enabling this option will cause the client to detect the presence of sequence numbers in either the first 8 characters (typically used for variable record format data sets) or last 8 characters (typically used for fixed record format data sets) of the command input, and ignore them. As part of this change, this detection is performed even if the SEQNUMSUPPORT option is not enabled. If a character sequence that looks like a sequence number is seen on a statement, the EZYFS34W message is issued but the statement is still processed as is (the same as was done in earlier releases).

If the command input data set has sequence numbers, these would likely cause other errors in trying to process the command (see Technote 1139161 for some examples). If so, either remove the sequence numbers, or add a SEQNUMSUPPORT TRUE statement to the FTP.DATA input being used by this client.

If the FTP session otherwise completes successfully with no other error messages, the EZYFS34W is most likely caused by some specification in the command line starting with eight numeric digits. Examples of this could be:

• The host name for the server, when it is supplied as the first line of the command input rather than on the FTP invocation.
• The userid or password specification for non-z/OS servers.
• The file name for a GET or PUT operation (either the source or the target), when supplied on a continuation line.


   PUT MYPDS.DATA(MEM1) +
   20110409-DATA.txt