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Status Future consideration
Created by Guest
Created on Dec 6, 2019

Suppress DD-level accounting information in the SMF type 30 EXCP section for individual DDs.

We found that E-Private SP230 Key0 storage growth was occurred in IIDR Classc Capture service.

It was due to SMF type 30 EXCP information at DD name dynamic allocation.

Our case was 100 thousand DD Dynamic allocation for IMS OLDS open. 


Then, I've submitted the idea to SMF via RFE

but it was rejected because of the following reason:


developer update: IBM_Systems_Developer (IBM)
SVC 99 Dynamic Allocation provides the S99DASUP flag, which provides the ability to suppress DD-level accounting information in the SMF type 30 EXCP section for individual DDs. This was introduced for applications such as this where DD-level accounting information provides very little value. Please submit an RFE against the application(s) to provide an option to suppress DD-level accounting information.


So we would like to ask IIDR Classic replication development team to provide the SMF type 30 EXCP accounting information by setting S99DASUP flag.

Needed by Date Jan 31, 2020