Answered, I think: 

When I try to create a DATACLAS for non-SMS-managed VSAM clusters with extended 
addressability, ISMF seems to tell me that if the cluster will not be in 
extended format, the cluster must be a linear dataset. That is, it cannot be, 
for instance, a KSDS cluster.

-----Original Message-----
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of 
Michael Watkins
Sent: Tuesday, September 13, 2022 1:14 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: ADR971E RC 8

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To create a non-SMS-managed VSAM cluster with extended addressability, what is 
required other than assigning a DATACLAS with column 27 (EXTENDED 
ADDRESSABILITY) specified as 'YES'?

-----Original Message-----
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of 
Mark Jacobs
Sent: Tuesday, September 13, 2022 11:14 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: ADR971E RC 8

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I can define an EA/EF VSAM Linear dataset on both SMS and Non-SMS volumes. Both 
are usable and the catalog entries for both reflect their EA/EF status.

Mark Jacobs

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------- Original Message -------
On Tuesday, September 13th, 2022 at 12:05 PM, Ernesto Figueroa 
<erfig...@us.ibm.com> wrote:


> Hi Mark,
>
> The reason ADRDSSU cannot copy/restore non-SMS extended addressable VSAM LDS 
> data sets to SMS managed extended addressable VSAM LDS is because the non-SMS 
> EA is not an extended-format data set, which requires it to be SMS. The SMS 
> EA is extended-format, and therefore it has an additional 32bytes per 
> physical block. Since the blocks are not the same, we cannot copy/restore 
> tracks between them.
>
> I hope this answers your question,
> Thanks!
>
> Ernesto E. Figueroa
> DFSMSdss Product Owner
>
>
>
> From: IBM Mainframe Discussion List IBM-MAIN@LISTSERV.UA.EDU on behalf 
> of Mark Jacobs 00000224d287a4b1-dmarc-requ...@listserv.ua.edu
>
> Date: Monday, September 12, 2022 at 10:55 AM
> To: IBM-MAIN@LISTSERV.UA.EDU IBM-MAIN@LISTSERV.UA.EDU
>
> Subject: [EXTERNAL] ADR971E RC 8
> I got around the problem a different way, but I'd really like to understand 
> why ADRDSSU won't restore(logically dumped) or copy a non-SMS extended 
> addressable VSAM LDS dataset to an SMS managed extended addressable VSAM LDS. 
> Is there something within the physical dataset that's different between it 
> being SMS managed vs not being SMS managed?
>
> Mark Jacobs
>
> Sent from ProtonMail, Swiss-based encrypted email.
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