As the application is now using a CICS Data Table, perhaps the Data Table can 
be changed to a Coupling Facility Data Table?


________________________________
From: Laurence Chiu <[email protected]>
Sent: Friday, May 31, 2024 14:47
To: [email protected]
Subject: Coupling Facility List structure versus CIC Data Table

We recently fixed a CICS transaction that read some reference data and 
stored it in memory in the CWA. It also had some common code that was 
used across the application space. But because it used the CWA in a 
non-standard way the transaction always had to be called in its region, 
rather than run in any region that needed it. 

Finally overcoming developer  inertia, I had the application changed to use 
a CICS Data Table which now means the transaction can be called from any 
region without a cross region call. 

But the code is also used in batch and the batch version reads a VSAM 
file.  We have just implemented a parallel sysplex and it would seem an 
ideal application for a CF LIst Structure.  We could have a 
scheduled application load the structure when it changed or across an IPL 
and then the data would then be available to any application. This is read 
only so applications never need to do more than just read the data. 

We are new to parallel sysplex so any thoughts appreciated. 

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