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Status Future consideration
Workspace z/OS
Categories BCP_SMF
Created by Guest
Created on Jan 16, 2020

RELATED IDEAS

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

JES2 encountered ABENDS878-10. If there had been such an option to suppress DD-level accounting information in the SMF type 30 EXCP section for individual DDs, the ABENDS878-10 problem could have been prevented.

Idea priority High
  • Guest
    Reply
    |     Apr 30, 2020

    Case TS003095404 has been closed today. If you can looked at the dump on MCEVS1, and if you feel the necessity to look at it, I recommend that you should do it quickly. The dump will be deleted after a while.

  • Guest
    Reply
    |     Apr 9, 2020

    Most of the data in these SMF records in the JES2 address space are associated with JCLLIB DDs. While it is true the data resides within the JES2 address space, the records are actually associated with the DDs that are being allocated during Converter.
    Case TS003095404 is still open. We can look at the dump now. Can you look at the dump on MCEVS1?

  • Guest
    Reply
    |     Apr 9, 2020

    Most of the data in these SMF records in the JES2 address space are associated with JCLLIB DDs. While it is true the data resides within the JES2 address space, the records are actually associated with the DDs that are being allocated during Converter.
    Case TS003095404 is still open. We can look at the dump now. Can you look at the dump on MCEVS1?

  • Guest
    Reply
    |     Apr 8, 2020

    .Just for clarification, can you confirm that the DDs for which you would like to see type 30 EXCP information suppressed are dynamically allocated by the Converter?
    If we were to make a change, it would be to update individual allocation requests to suppress DD-level accounting, so it is important to understand which allocation requests would need to be updated.

  • Guest
    Reply
    |     Apr 8, 2020

    The problem is about SMF30 subtype4 and subtype5 gathering for JES2 address space. As conversion happens within the JES2 address space and we read in additional DDs and JCLLIBs for each job.... those are going to generate a record. The problem is that these are stored in storage and would be written out to MANxx datasets at step (or job termination), but JES2 itself does not have such a termination because it is always up and running. So all of these records build up in JES2 private over time and eat up our storage.
    The caller (IBM SE) understands that the customer should specify SUBSYS(JES2,INTERVAL) and SUBSYS(JES2,NODETAIL) to prevent it. However I think that it is useful if the customer prevent it even with SUBSYS(JES2,NOINTERVAL) and SUBSYS(JES2,NODETAIL). The SMF S99DASUP flag setting is able to suppress the TYPE30 EXCP. I suppose the converter development team can create a parameter that supresses TYPE30 EXCP.

  • Guest
    Reply
    |     Apr 8, 2020

    The problem is about SMF30 subtype4 and subtype5 gathering for JES2 address space. As conversion happens within the JES2 address space and we read in additional DDs and JCLLIBs for each job.... those are going to generate a record. The problem is that these are stored in storage and would be written out to MANxx datasets at step (or job termination), but JES2 itself does not have such a termination because it is always up and running. So all of these records build up in JES2 private over time and eat up our storage.
    The caller (IBM SE) understands that the customer should specify SUBSYS(JES2,INTERVAL) and SUBSYS(JES2,NODETAIL) to prevent it. However I think that it is useful if the customer prevent it even with SUBSYS(JES2,NOINTERVAL) and SUBSYS(JES2,NODETAIL). The SMF S99DASUP flag setting is able to suppress the TYPE30 EXCP. I suppose the converter development team can create a parameter that supresses TYPE30 EXCP.

  • Guest
    Reply
    |     Apr 3, 2020

    Hello, we would like to ask for additional information to help us understand this request.
    We already support (through SVC 99 Dynamic Allocation) an option to suppress DD-level accounting information for a DD when it is being allocated. It is up to the application/subsystem to determine whether it is appropriate to use this option when allocating data sets.
    It is not clear whether this request is asking for a global system option to suppress all DD-level accounting information that applies to all SMF type 30 records, or something more granular. If you are asking for something more granular, it would be better to request this from the specific application or subsystem (in this case, I think that would be JES2.) It might also help us if you could provide some information about the DDs being allocated so that we could understand what DDs you would like to have supressed.

  • Guest
    Reply
    |     Jan 17, 2020

    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 - BCP_General
    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 - BCP_SMF
    Operating system - IBM z/OS
    Source - Client

  • Guest
    Reply
    |     Jan 17, 2020

    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 - BCP_SMF
    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 - BCP_General
    Operating system - IBM z/OS
    Source - Client

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