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GDG Version Creation

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tvssv
Beginner

Joined: 11 Mar 2009
Posts: 58
Topics: 25

Posted: Sat Dec 10, 2022 10:27 am Post subject: GDG Version Creation

Hi,

We have a requirement as below.

We have 2 GDG bases in MVS. For eg.

Code:

ABC.EFG.SA..DATA
ABC.EFG.SA.AUDIT

We are getting these files from external system with same names as below.

Code:

ABC.EFG.SA..DATA(+1)
ABC.EFG.SA.AUDIT(+1)

I have a doubt here, in such case will those files will be stored as GDG versions as GDG base is present? But seniors are saying versions will be created as the incoming files are with (+1).

My knowledge is that we need to write step in JCL to create GDG version.

Please advise. Is there any best method to achieve this.

Thanks.
_________________
Thanks
TVSSV

kolusu
Site Admin

Joined: 26 Nov 2002
Posts: 12367
Topics: 75
Location: San Jose

Posted: Mon Dec 12, 2022 5:41 pm Post subject: Re: GDG Version Creation

tvssv wrote:

I have a doubt here, in such case will those files will be stored as GDG versions as GDG base is present? But seniors are saying versions will be created as the incoming files are with (+1).

tvssv,

Versions? +1 will create a new GENERATION of the gdg and not version. If you need to create a version then you need to get past the limit.

Read about Relative generation numbers here

https://www.ibm.com/docs/en/zos/2.4.0?topic=groups-relative-generation-number

Absolute generation and version numbers here

https://www.ibm.com/docs/en/zos/2.4.0?topic=groups-absolute-generation-version-numbers

tvssv wrote:

My knowledge is that we need to write step in JCL to create GDG version.

Not really. You can go ISPF option 3.2 and allocate +1 generation of the GDG
_________________
Kolusu - DFSORT Development Team (IBM)
DFSORT is on the Web at:
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