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Maximum no of checkpoints that can be issued by IMS


IBM Mainframe Forums -> IMS DB/DC
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Sandy Zimmer

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Joined: 13 Jun 2007
Posts: 826
Location: Wilmington, DE

PostPosted: Tue Oct 09, 2007 2:40 am
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abin, I will not give up on your problem. I have thought about it all day - intermittendly - icon_wink.gif You need to point your DBA to this forum or at least copy the QUOTES that Bitneuker posted. These DBA people come from all over the world and are top-notch at what they do. I know some of them thru reputation. They really do know what they are doing. Please learn what IMS can and cannot do - just because you can do it, does not make it good. It is very-very powerful and these people have been doing this for years. You really need to know IMS to design a system. I will help with whatever you need.
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abin

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Joined: 14 Aug 2006
Posts: 198

PostPosted: Tue Oct 09, 2007 10:07 am
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Hello Sandy,

Thanks for your kindfull regard to my problem icon_biggrin.gif . As I pointed out previously current checkpoint level is working without any adversary effect on the system. To note out current process works with an input of 250K records at maximum. So, checkpoint limit was not a big issue here.

I was seeking out for a solution which we were proposing to implement for future. The program with checkpoint I was talking about was actually just one code, though a bigger one in the entire process. For some time being we will stick to the old proccess. I sure will take up knowledge we discussed to DBA if the alternate with 80 mio comes up. I have already posted this as an issue to the people concerned.

Quote:
What kind of system?
IMS DB/DC. Handles both online and batch systems. There are an awfull lot of code running at same time.
Quote:
What were the requirements?
icon_neutral.gif
Quote:
Why so much input and where is it coming from
? Batch processing of already accumulated records via online.

Quote:
Well, as you may have read in the quotes there's no limit (watch the length of the checkpoint-id). And if you definitely want your checkpoint per 5 records: case close

Yes George and Thanks. If the new system comes up as a real one then I will certainly reopen the case icon_smile.gif .

Thanks,
Abin.
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abin

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Joined: 14 Aug 2006
Posts: 198

PostPosted: Tue Oct 09, 2007 10:24 am
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And yes If new system comes up. I sure will press them to increase the checkpoint count. This infact involves a huge amount of controlled system testing in production.

Thanks,
Abin.
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