Creating a Physical Sequential (PS)

Creating a Physical Dataset (PS)

//CREATEPS JOB (12345),CLASS=A,MSGCLASS=X,NOTIFY=&SYSUID

//STEP1 EXEC PGM=IEFBR14

//MYPS DD DSN=MY.PS.FILE,

// DISP=(NEW,CATLG,DELETE),

// SPACE=(CYL,(1,1),RLSE),

// UNIT=SYSDA,

// DCB=(RECFM=FB,LRECL=80,BLKSIZE=800,DSORG=PS)

Explanation:

1. JOB Statement:

   • Introduces the job as CREATEPS

   • CLASS=A specifies the priority.

   • MSGCLASS=X sends logs to a specific output class.

   • NOTIFY=&SYSUID notifies the job submitter upon completion.

2. EXEC Statement:

   • Runs the IEFBR14 utility, which is a "dummy" program often used to allocate or delete datasets.

3. DD Statement:

   • DSN=MY.PS.FILE: Names the dataset.

   • DISP=(NEW,CATLG,DELETE): Creates and catalogs the dataset if successful; deletes it if the job fails.

   • SPACE=(CYL,(1,1),RLSE): Allocates 1 cylinder initially, with 1 as additional, and releases unused space.

   • UNIT=SYSDA: Assigns the default system storage device.

   • DCB=(RECFM=FB,LRECL=80,BLKSIZE=800,DSORG=PS): Specifies fixed-length records (80 bytes per record and 800 bytes per block).

   • DSORG=PS: Indicates that the dataset is a Physical Sequential (PS) dataset.