Overrides for JCL to get right GDG into steps on restart

Linda Maria Conner

Where I work now, the production system has software to handle getting the correct GDG into all steps of a job, if the job is restarted. But in test, if we do a restart, we have to set it up ourselves. I am trying to document the TEST JCL with instructions

What do you do if you have this

You have a PROC

STEP10 creates A (DSN FILEA) +1 generation

Then STEP20 and STEP30 run and dont refer to file A or file B

Then STEP40 creates B (DSN FILEB) +1 generation

STEP50 concatenates FILEA(+1) and FILEB(+1) as input

So - say you crash and want to restart the job in STEP20 or STEP30

Can you use overrides that look something like this for STEP50?
//STEP50.ABIN DD DSN=FILEA(0),DISP=SHR
// DD DSN=FILEB(+1),DISP=SHR

If not, how do you do this? Or, is it just not possible to restart in STEP20 or in STEP30 ????

dick scherrer · Posted: Tue Oct 07, 2008 12:36 am Post subject:

Hello,

If it is in a PROC, you might consider making the generation specifications different symbolic parameters. The default would be +1, but on a restart you could specify the zero for filea.