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[ramkicr]

Hi,

I'm a newbie in this forum. I'm looking for help reg. CICS region.

Currently we've a CICS/IDMS environment and when the mainline batch runs between 2:30 AM - 6:30 AM est, the CICS region is brought down twice (once when the batch begins and once when the batch is ending). We're looking at an initiative of keeping the CICS region up even while the mainline batch is running. We're trying to identify the different bottlenecks which are expecting the CICS region to be down for a certain period.

1)When the region is down, the NEWCOPY loadlib is deleted/redefined and PROD loadlib is copied so that the latest PROD loadmodules are reflected in the CICS region. Is there any way of accomplishing the above without bringing the region down?

2)There are certain tables which are coded in the VSAM files and these VSAM files are updated during the mainline batch run. So, currently these VSAM files are not available for the online region when the batch is running. Is there any way of avoiding this so that the VSAM files could be updated and simultaneously be available for the online region.


Any help / suggestions in this regard would be much appreciated.

Thx
Ram

[calspach]

They can't be simultaneously available for update for both batch and CICS. As long as CICS is only reading, you can update away in batch though. You could close the file for update, reopen for read only, then run the batch. This would at least allow users to see info, but if they try to update they should recieve errors. You would probably want to add messeges to the programs that update the files also then, to give some type of info message that updates are not available righ now, but should be by (time)

The only way to completely refresh the CICS region without bringing it down that I can think of would be to manually NewCopy each member. You can do this in JCL.