RESTART Parameter

The RESTART parameter requests a deferred restart of a job. Code it in the JOB statement when you resubmit the job. If step restart is to occur, this parameter specifies which step to begin. If the restart is to occur at a checkpoint that was taken during a step, specify both the step and the identification of the particular checkpoint entry. The syntax of the parameter is:

RESTART=({stepname|stepname.procstepname|*}[,checkid])

Both operands are used if restart at a checkpoint is to occur. If a step restart is to occur, checkid must be omitted; the enclosing parentheses can be omitted.
stepname
name of the step to be started.
stepname.procstepname
if a step of a cataloged procedure is to be restarted, stepname is the name of the step executing the procedure and procstepname is the name of the step within the procedure.
*
the first step of the job (possibly a step within a cataloged procedure) is to be restarted.
checkid
can contain up to 16 characters in any combination of alphanumeric characters, printable special characters, and blanks. If it contains any special characters or blanks, it must be enclosed in single apostrophes, and apostrophes within it must be represented as double apostrophes.