On Monday, 22 October 2012 10:08:36 UTC+1, Walter Marguccio  wrote:
> Hello all, 
> ever since we migrated from CA-1 to rmm in 2008, I have been told that
> the latter would never delete a cataloged dataset, even if the dataset 
> had a RETPD or EXPDT specified at allocation time. In other words, the  
> VRSEL retention method would never allow the above, no matter which
> combination of VRS(es) was used. 
> Has the new EXPDT retention method (introduced at z/OS 1.13 level) been 
> implemented in order to satisfy such requirement ?� 
> 
> Walter Marguccio
Walter,  What you remember/were told, about cataloged tape data sets is not in 
fact true.
rmm can "delete" a cataloged tape data set if the matching VRS includes some 
other retention type than WHILECATALOG.
When VRSes are used, and in recent releases, when VRSEL retention method is 
used, all the retention types in the VRS must be true for a data set to be 
retained. So, if still cataloged, and the VRS specifies WHILECATALOG, a data 
set will be retained regardless of the EXPDT/RETPD.

The EXPDT retention method was introduced to provide an option for retention 
that did not require post processing other than simply checking the volume 
EXPDT vs the current date. Thus reducing the overhead of determining whether to 
scratch a tape.

Mike Wood

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