IBM Mainframe Forum

Dear All,

Could anyone share me some examples on Check Point Restart Logic ? Just an example where the repeated function requires this functionality .

Jags

Hello,

If an environment supports checkpoint/recovery it should be standard across the environment. Developers should not try to implement "their own". Checkpoint/recovery should be coordinated thru the people responsible for data recovery.

Due to the speed of the new processors and the new dasd arrays, many organizations no longer implement checkpoint/recovery. All of the database products that i'm aware of support automatic backout of an abended process and this is sufficient for most systems.

Checkpoint/recovery is too large a topic to handle as a forum topic.

Dear Dick,

I totally agree that this topic is going to be ever ending one and it is a automatic backout one. I am experimenting with a test DB2 subsystem so though if I could get a small example to check. Just a sample Program Logic would be sufficient enough to understand this concept.

Hello,

You shouldn't need any particular sample code if the system's automatic backout is the only backout needed. There would alco be no need to issue an explicit checkpoint.

Run a batch job that updates some table(s) and cancel the job. Or force an abend (S0C7 and S0CB) are very easy to cause in a test situation.