I have experienced this issue for years at my site, and I've had no luck finding the solution.
If I view a DD of an address space that is running on the same system that I am logged into, then I will occasionally receive the 'NO DATA in DATA SETS' message in SDSF when I select the output (it can be different DD's). I also have similar behaviour when viewing WTO messages in the JESMSGLG. I'm unable to see the most recent WTO's, but I can see older ones. If I log onto a different system within the same Sysplex, then I can view all of the output without issue. I assume this has something to do with viewing the SDSF buffers and some setting that is ignoring the most recent buffer. Any help would be greatly appreciated. Thank you, Brian Chapman ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN