Allocating space for the journal

Figure 1 shows JCL for allocating space for the journal.

Figure 1. Allocating space for the journal

//JOURNAL EXEC PGM=IEFBR14
//SYSPRINT DD  SYSOUT=*
//JOURNAL  DD  DISP=(NEW,CATLG),DSN=RMM.JOURNAL.DSET,
//             UNIT=SYSALLDA,VOL=SER=volser,STORCLAS=store_class,
//             DSNTYPE=LARGE,
//             AVGREC=U,SPACE=(4096,(pp))

where:

pp: Specifies the calculated primary space.
DSN=: Specifies the name of the journal. Use the same name you assigned in the parmlib member EDGRMMxx for OPTION JRNLNAME(name) or in the JOURNAL DD statement in the DFSMSrmm procedure.
SPACE=(4096,(pp)): Specifies the space allocation for the journal. Use the value you calculated in Calculating DASD space for the journal.

You must catalog the journal.

You do not have to specify any DCB information for the data set because the required values are set when DFSMSrmm opens the data set. Any conflicting values that you supply are overridden.

You can create the journal in multiple extents, but increases in size are not permitted once DFSMSrmm uses the data set. If you specify a secondary space allocation for the data set, DFSMSrmm ignores it.