We recently did an upgrade to z14's and have seen some unexplained problems. It appears (unconfirmed as of yet, but should be soon) to be related to some CA products. We should have confirmation later today or tomorrow. Our upgrade was z12's to z14's and we are running z/OS 2.2. If I get confirmation, I'll pass along more details.
-----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of fred glenlake Sent: Monday, February 26, 2018 11:11 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Hardware upgrade z13 to z14....Yikes Hi List, My management must be in line to cash in on performance bonuses because they have decreed we will upgrade our z13's to z14's in 90 days. This was a total out of left field surprise, perhaps our hardware vendor had a sale on for "Presidents Day", right next to the slacks and shirts and CEC's?? I am just starting to review the IBM considerations of going to z14's, lots to consider and read which I do not mind. Wondered if any list members had already moved to z14's and could share any land mines they encountered upgrading. At the 10,000 foot level I am thinking to get this done quickly hardware wise we drop the new CEC's next to the existing ones. Hook them up to power, HMC's, etc. Then grab a couple of cables from existing CEC's for DASD and Tape, swing them over. Use the existing IOCP and IOCDS as the basis of the new IOCP/IOCDS, update serial numbers, models, etc. Then bring up our sysprog lpar on the new CEC, get that one going, update and fix software keys/licenses, issues with first IPL's on new CEC, etc. Once all the work is done in terms of getting ready for the rest of the lpars, then go for the big bang one weekend. Bring down the rest of the lpars, drop the cables, swing over to new CEC, hook up and IPL remaining lpars. Assuming no phat thumb checks it should work. Of course there are a ton of considerations to review and check, coupling facility stuff, software stuff, compatibility maintenance, etc. However all things being equal I am thinking this approach is likely the safest in terms of risk avoidance and getting this done with the 90 days. We could go the move one lpar at a time route but that would mean more work and it would take longer especially with our change management processes (bless their little hearts). Any alternate suggestions or comments would be appreciated as I am sure there will still be a few land mines with my name on them waiting in the woods. FredG. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
