JCL Basics What is JCL? Job Entry Subsystem Job Processing JCL Statements JCL Parameters JOB Statement Job Statement Parameters for Job Positional Parameters ACCT NAME Keyword Parameters MSGLEVEL MSGCLASS TYPRUN PRTY CLASS RESTART REGION TIME NOTIFY EXEC Statement EXEC Statement Positional Parameters PGM PROC Keyword Parameters COND PARM ADDRSPC DD statement DD statement DD Parameters SPACE SYSIN VOL DCB SYSOUT DSN UNIT DISP |
SPACE parameter • SPACE parameter is used to request DASD storage space for newly created data sets. • Format: SPACE=(space units,(primary,secondary,dir),RLSE) • space unit - TRK(tracks)/CYL(cylinders)/BLOCKSIZE in bytes. • RLSE (partial release) – It requests to release the space allocated to an output dataset and is not used. It is an optional parameter. • Example - 1 SPACE=(TRK,(10,5),RLSE) Allocates 10 tracks primarily and if required as secondary allocation 5 tracks. • Example - 2 SPACE=(CYL,(10,2)) Allocate 10 Cylinders primarily and if required as secondary allocation 2 Cylinders. |