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Since DSNTYPE=EXTPREF | EXTREQ is not applicable to TAPE, it appears that the ACS routines have redirected your data set allocation to TAPE. We think you have a solution today through your ACS routine logic to decide if you want to fail the allocation in this case. That is, &DSNTYPE and &DSKEYLABEL are available in the ACS routine. You may add logic to fail the data set allocation when your ACS routine logic determines whether the data set allocation goes to DASD or TAPE. If you don't want to fail the allocation, make sure your ACS routine directs your allocation to DASD.
This solution is available. So, please let us know if that satisfies your need.
The concern is that we don't want SMS to fail the request if the intention of the ACS routine logic is to redirect the allocation to TAPE. Such a change could impact other clients.
Due to processing by IBM, this request was reassigned to have the following updated attributes:
Brand - Servers and Systems Software
Product family - z Systems Software
Product - z/OS
Component - DFSMS SMS
Operating system - IBM z/OS
Source - Client
For recording keeping, the previous attributes were:
Brand - Servers and Systems Software
Product family - z Systems Software
Product - z/OS
Component - ICSF
Operating system - IBM z/OS
Source - Client