Allocating an OSAM large format sequential data set

OSAM supports large format sequential data sets. Large format sequential data sets can exceed 65 535 tracks or 3.4 GB on a single volume.

• Use the following JCL sample to allocate an OSAM large format sequential data set. The data sets allocated with this JCL are compatible with the Database Image Copy 2 utility.

  //OSAMALBG   JOB  A,OSAMEXAMPLE
  //S1        EXEC  PGM=IEFBR14
  //AJOSAMDB DD  DSN=IMSTESTL.AJOSAMDB,UNIT=SYSDA,
  //             DISP=(NEW,CATLG),DSNTYPE=LARGE,                      
  //             SPACE=(CYL,(4500,100)),VOL=SER=LRGVS1          

• Use the following JCL sample to allocate an OSAM large format sequential data set on an extended address volume (EAV). The data sets allocated with this JCL are compatible with the Database Image Copy 2 utility.

  //OSAMALBG   JOB  A,OSAMEXAMPLE
  //S1        EXEC  PGM=IEFBR14
  //AJOSAMDB DD  DSN=IMSTESTL.AJOSAMDB,UNIT=SYSDA,
  //             DISP=(NEW,CATLG),DSNTYPE=LARGE,                      
  //             SPACE=(CYL,(4500,100)),VOL=SER=EAV001,EATTR=OPT