z13 FICON is 2/4/8G. z14 FICON is 4/8/16G, so be sure you don't have 2G or less or have a switch to convert.
On Mon, Feb 26, 2018 at 10:10 AM, fred glenlake <fred.glenl...@outlook.com> wrote: > 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 -- 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