Define the replacement checkpoint data sets by adding the NEWCKPT1= and NEWCKPT2= parameters to the same CKPTDEF initialization statement that you use to define your primary (CKPT1 and CKPT2) data sets. These data set are only defined to JES2; they are not allocated until they are put into use during the checkpoint reconfiguration dialog.

For checkpoints on DASD:

    CKPTDEF NEWCKPT1=(DSNAME=dsname,VOLSER=volser),
            NEWCKPT2=(DSNAME=dsname,VOLSER=volser), 

For checkpoints on Coupling facility:

    CKPTDEF NEWCKPT1=(STRNAME=strname),
            NEWCKPT2=(STRNAME=strname),