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CICS CEMT I DSN - DSN NOT IN CSD REPORT

 
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Tom Walker

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PostPosted: Mon Sep 14, 2009 9:26 pm    Post subject: CICS CEMT I DSN - DSN NOT IN CSD REPORT
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The CEMT I DSN command displays data set names that are not found in the CSD report. To produce the CSD report, I executed the DFHCSDUP program using the groups listed in the SIT member for the CICS started task. There were four groups listed. For each group in the report job I used the command: LIST LIST(groupname) OBJECTS. The report shows many of the data set names found in the CEMT I DSN(*) display, but not all of them. I have never encountered this. I have double checked by CSD data set name and the group names to be sure I am using the correct ones. Where are these new DSN's coming from?
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Robert Sample

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PostPosted: Mon Sep 14, 2009 9:28 pm    Post subject:
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Have you check the CICS JCL? IIRC, you can override the DSNAME at run time by specifying the DD name and DSNAME for the file which will use the provided value, not the CSD value.
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Tom Walker

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PostPosted: Mon Sep 14, 2009 9:54 pm    Post subject: CICS CEMT I DSN(*) - DSN NOT IN CSD REPORT
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All of the DSN's not in the CSD report are BDAM files. None are VSAM files. They do not appear in the running task so I do not see how they could be overrides from job control language. I am wondering if, in an MRO environment, these files are defined in another group not directly associated with my region. Just wondering. I am not a CICS techie.
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Robert Sample

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PostPosted: Mon Sep 14, 2009 10:46 pm    Post subject:
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They do not appear in the running task so I do not see how they could be overrides from job control language
I do not understand this statement -- if a file is in the JCL used to start up the region, there may be NO tasks that use the file but it will still be allocated to the DD name because it is in the JCL.

You may also want to check your CICS manuals for the phrase "file owning region". If your site is running a CICSplex, there can be multiple regions doing different things for the CICSplex.

And with MRO, are you looking at the TOR or AOR with your CEMT commands?
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Tom Walker

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PostPosted: Tue Sep 15, 2009 12:33 am    Post subject: CICS CEMT I DSN(*) - DSN NOT IN CSD REPORT
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I viewed the started task for the CICS region. This is currently running and I did not see anything to match the FCT names nor the data set names of the BDAM files that appear in the CEMT I DSN(*) display for that region. Would this started task not show any overrides? In the SIT input I did find an FCT parm with a comment that says 'contains BDAM entries' so I am researching this parm at present. As for whether I am looking at the TOR or the AOR, I have to research that as I do not yet know how to determine that. I figure that these BDAM dsn's have to be stored in a file, a table, or some object that is linked to the CICS region.
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Tom Walker

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PostPosted: Wed Sep 16, 2009 12:58 am    Post subject: CICS CEMT I DSN - DSN NOT IN CSD REPORT
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To answer my own question: BDAM files are defined using the DFHFCT macro and are not part of RDO and are not in the CSD file but are loaded from the DFHFCT library at CICS initialization time. I do not know if there is a tool that will list them from this library.
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