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venkat · Guest

what is the Minimum and maximum number of checkpoints we have to give while giving checkpointing.IF we give more number of checkpoints will the IMS Region will be down?

kolusu · Posted: Tue Oct 26, 2004 5:39 am Post subject:

Venkat,

There is nothing like a MIN and MAX no: of checkpoints. You are likely to bring down IMS if you are trying to take more checkpoints

Kolusu
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Bithead · Posted: Tue Oct 26, 2004 8:42 am Post subject:

I usually recommend 2-3 per minute depending on the usage of the database. If there are locking problems, I recommend that the frequency be increased. I don't think IMS will come down but you will get an impact in response time. The smallest interval should be a unit of work.

Please also note that check-point messages are sent to the Master Terminal (MTO) so this should also be a factor in your checkpoint frequency policy as an operator will have to page through them. (Personally, I use an exit to suppress these).