Subparameter definition

ALL: Indicates that this OUTPUT JCL statement applies to all of the job's system-managed data sets.
LOG: Indicates that this OUTPUT JCL statement applies only to the JESMSGLG data set, which contains the JES and operator messages for this job.
JCL: Indicates that this OUTPUT JCL statement applies only to the JESJCL data set, which contains the JCL statements for this job.
MSG: Indicates that this OUTPUT JCL statement applies only to the JESYSMSG data set, which contains any JCL error messages and any system messages for this job.