Messages generated during checkpoint

The system checkpoint routine advises the operator of the status of the checkpoints taken by displaying informative messages on the console.

Each time a checkpoint is successfully completed, a message is displayed that associates the jobname (ddname, unit, volser) with the checkpoint taken (checkid).

The control program assigns checkid as an eight-character string. The first character is the letter C, followed by a decimal number that indicates the checkpoint. For example, the following message indicates the fourth checkpoint taken in the job step:

checkid C0000004