From "Pommier, Rex" <rpomm...@sfgmembers.com> on Thu, 5 Jan 2017 17:17:01 +0000:
>Thanks for the suggestion. We are already running MODE=DUPLEX. We had one or two systems where we had to make this change, and a couple that we had to migrate to z11 checkpoint format. Other than that, no issues with upgrade and downgrade via WARMSTART between 1.13 and 2.2. As others suggested, verify your toleration maintenance, and it probably wouldn't hurt to do a REPORT SYSMODS <1.13 zone> COMPAREDTO(<2.2 zone>) and vice versa. I've been burned by "missing" PTFs before that make incompatible changes (e.g., previously mentioned incompatible parameters, though these usually are resolved via startup prompts). Finally, do you have any exits installed? We had to rewrite a few of our exits for 2.2. I don't know which (I'm not on the upgrade project), but I can find out. Regards, Art Gutowski General Motors, LLC ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
