Versioning

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  Original Message  
From: Peter Hunkeler
Sent: Tuesday, November 17, 2015 16:42
To: IBM-MAIN@LISTSERV.UA.EDU
Reply To: IBM Mainframe Discussion List
Subject: AW: Re: Fastest way to read OLDEST GDG entry

> What makes "V00" ever Vnn, where N<>0? 


IIRC, the system does not really care for the version number. When a new GDS is 
allocated using relative numbering, the version is always V00. If you want to 
replace a GDS with a specific generation number while keeping the place in the 
GDG, you cataloge the new data set using the fully qualified DSN but replace 
the V00 with whatever version you like. The new data set will become a GDS in 
place and at the place of the V00 GDS. This new GDS will be treated as any 
other GDS, i.e. aged and eventually rolled off.


I don't see practical use for this.


--
Peter Hunkeler 

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