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.
>
>
>
>
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-- 
Mike A Schwab, Springfield IL USA
Where do Forest Rangers go to get away from it all?

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