BACKUP

DD statements for the batch command facility (z/OS)

//userdb   DD  DSN=user.userdb,DISP=SHR
Additional file assignments, as required
//SYS001   DD  DSN=user.bkpfile,DISP=(NEW,PASS),

//             UNIT=tapeout,VOL=SER=nnnnnn,
//             DCB=(RECFM=VB,BLKSIZE=bbbb)

userdb	DDname of the database file
user.userdb	Data set name of the database file
user.bkpfile	Data set name of the tape backup file
tapeout	Symbolic device name of the tape backup file
nnnnnnn	Volume serial number of the tape backup file
bbbb	Block size of the tape backup file. Must be as large as the smaller of: The size of the largest page being backed up, plus 8 32,760