As long as you don't need more MIPS, keep chugging along.
Which is why IBM cuts off the upgrades.

On Fri, Nov 20, 2015 at 4:02 PM, Brian Westerman
<[email protected]> wrote:
> We have both a consulting and a software side, on the consulting side the 
> oldest machines we have are:
>
> 4 z/800's running os/390 2.10, z/os 1.4, 1.7 and 1.13
> 2 9672's both running OS/390
> 1 4381 running MVS/XA
>
> All of these are production systems, and for some very special reasons they 
> are at the hardware level specified.
>
> In the past 2 years I personally have converted 8 sites from 3 9672's and 5 
> z/800's to z/114 or newer boxes running z/OS V2.1.  All of them were straight 
> jumps to z/OS 2.1 and they were all completely successful.  The oldest jump 
> was OS/390 2.7 to z/OS 2.1.
>
> Brian
>
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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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