6233 is the default for the various device types available when the code was written in the 1960s. 6144 for the linkage editor.
On Mon, Oct 14, 2013 at 10:19 AM, John McKown <john.archie.mck...@gmail.com> wrote: > I am not sure that the following is the reason, but it is likely. > > When you do a PUT from a z/OS system (client) to another system (z/OS or > not), the z/OS client ftp does a SENDSITE command which relays the DCB > information of the file being sent to the receiving z/OS system. Other ftp > servers tend to flag this and return a command not understood type error. > > As to why IBM has those as the ftp defaults? I don't have any real notion. > My uneducated guess is that since the default transfer method is ASCII > (text), and when a file comes from a non-z/OS system, all text records are > general variable in length that IBM decided that VB made sense. I have no > idea why they thought that 256 was a good number, unless it is because that > it the maximum number of bytes which can be copied with a single MVC > instruction. 6233 is a real stumper. I would have used 0 so that SDB would > find the best fit for the receiving device. > > > On Mon, Oct 14, 2013 at 10:09 AM, Mike Wojtukiewicz > <mw...@attglobal.net>wrote: > >> I've been using MVS FTP for the longest time. I've encountered this >> problem but it never presented much of a problem until I had a problem with >> someone. Our company accepts SMF data that's been compressed via TRSMAIN >> (LRECL=1024,RECFM=FB). I wrote SMS routines such that if a user signs in >> using a certain RACF userid it gets assigned a DATACLAS such that it >> assigns the correct DCB. I also have the ftp parm file (/etc/ftp.parm) set >> up to default to LRECL=80 RECFM=FB BLKSIZE=27920 seeing as how MOST ftps >> I''ve seen is moving XMIT files between MVS and other platforms. My >> question is this. Why when I use a DOS Window and client to sign on does it >> assign the correct DATACLAS but use the default LRECL=80 but when I go from >> MVS to MVS it works correctly. As an aside..I've NEVER understood why IBM >> sends LRECL 256 RECFM VB BLKSIZE 6233 as the defaults. >> >> ---------------------------------------------------------------------- >> For IBM-MAIN subscribe / signoff / archive access instructions, >> send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN >> > > > > -- > This is clearly another case of too many mad scientists, and not enough > hunchbacks. > > Maranatha! <>< > John McKown > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
