The structure that increased for us was the RRS RMDATA structure.   We went
from a zBC12  to a ZR1 so CFLEVEL 18 or so to level 22.

On Fri, Sep 6, 2019 at 11:39 AM Michael Babcock <[email protected]>
wrote:

> We updated a year or so ago.   The only size increase strictly necessary
> was one of the RRS structures.  Don’t remember which one off the top of my
> head.  I can check and post back.
>
> On Fri, Sep 6, 2019 at 7:49 AM Vernooij, Kees (ITOP NM) - KLM <
> [email protected]> wrote:
>
>> What is the source of these figures? In my experience many CF level
>> upgrades did not require a structure increment and others had specific
>> requirements. E.g. add nn MBs i.s.o. increment by nn %.
>> 75% is a guess and in my opinion too much.
>>
>> We are at level 21 now. If my docs are reliable, the last increase
>> required by CF level was at level 15.
>> So if level 22 does not require a structure increase, level 17 structures
>> are probably OK.
>>
>> Kees.
>>
>> > -----Original Message-----
>> > From: IBM Mainframe Discussion List [mailto:[email protected]]
>> On
>> > Behalf Of Mike Schwab
>> > Sent: 06 September, 2019 14:34
>> > To: [email protected]
>> > Subject: Re: Migration from z114 to z14ZR1, CF structure sizes
>> >
>> > I would multiply.  Example 1.1 * 1.2 * 1.1 * 1.1 * 1.1 = 1.75692
>> > instead of 1.6 by addition.
>> >
>> > On Fri, Sep 6, 2019 at 12:17 PM Vernooij, Kees (ITOP NM) - KLM
>> > <[email protected]> wrote:
>> > >
>> > > You can ask IBM for the information about CF levels 18 - 22. If
>> > structure sizes need to be increased during a CF level upgrade, this is
>> > documented with the CF level. Add up the increments and you have a good
>> > estimate of the Level 22 sizes.
>> > >
>> > > Kees.
>> > >
>> > >
>> > > > -----Original Message-----
>> > > > From: IBM Mainframe Discussion List [mailto:
>> [email protected]]
>> > On
>> > > > Behalf Of Juergen Kehr
>> > > > Sent: 06 September, 2019 13:47
>> > > > To: [email protected]
>> > > > Subject: Migration from z114 to z14ZR1, CF structure sizes
>> > > >
>> > > > Hello,
>> > > >
>> > > > we’re planning a migration from our z114 to a z14ZR1, therefore we
>> > have to
>> > > > bring our CF policy from one which supports CFLEVEL=17 to one for
>> > > > CFLEVEL=22.
>> > > >
>> > > > Because of hardware dependencies there is no way to have a z/OS
>> system
>> > > > which has one CF with the old CFLEVEL and one with the new CFLEVEL
>> up
>> > and
>> > > > running. On the old z114 one we could attach the old CF, on the
>> z14ZR1
>> > on
>> > > > the new one. But as far as we understand this would be a requirement
>> > for
>> > > > using the SIZER tool (see CFSizer alternate sizing methods:
>> > > > https://www.ibm.com/support/pages/cfsizer-alternate-sizing-
>> > techniques).
>> > > >
>> > > > Using  CFSizer in our case would be fairly complicate, because we
>> > don’t
>> > > > know the input values used in former CFSizer runs to lead to the
>> > existing
>> > > > values in our policy. Furthermore we can’t reproduce this, because
>> > CFSizer
>> > > > only supports the current CFLEVEL=23, so we can’t try to reproduce
>> the
>> > old
>> > > > input values for CFLEVEL=17 via looking to the results they produce.
>> > > >
>> > > > So we urgently would need any good idea, how to get the new
>> structure
>> > size
>> > > > values when migrating from CFLEVEL=17 to CFLEVEL=22.
>> > > >
>> > > > Thanks in advance for any help.
>> > > >
>> > > > Kind regards.
>> > > > Juergen Kehr
>> > > >
>> > > >
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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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> --
> Michael Babcock
> OneMain Financial
> z/OS Systems Programmer, Lead
>
-- 
Michael Babcock
OneMain Financial
z/OS Systems Programmer, Lead

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