As your sysout messages state, you cannot allocate a dataset with a primary allocation that exceeds 65535 tracks (or, in this case, 4369 cylinders). I'm not exactly sure how you get this dataset allocated in your SMS environment. However, if you can bypass SMS control (or allocate to non-SMS volumes), the following JCL will work for allocating a multi-volume dataset whose size exceeds the 4369 cylinder primary allocation threshold. I assumed that you would utilize three whole 3390-3s. You would have to adjust, of course, for the size of your VTOC and index. Hope this is useful.
//ALLOC EXEC PGM=IEFBR14 //VOL1 DD DSN=SYS2.TEST.LIBRARY,DISP=(NEW,KEEP), // DCB=(DSORG=PS,RECFM=FS,LRECL=27648, // BLKSIZE=27648),UNIT=DISK, // SPACE=(CYL,3336),VOL=SER=TST001 //VOL2 DD DSN=SYS2.TEST.LIBRARY,DISP=(NEW,KEEP), // DCB=(DSORG=PS,RECFM=FS,LRECL=27648, // BLKSIZE=27648),UNIT=DISK, // SPACE=(CYL,3336),VOL=SER=TST002 //VOL3 DD DSN=SYS2.TEST.LIBRARY,DISP=(NEW,KEEP), // DCB=(DSORG=PS,RECFM=FS,LRECL=27648, // BLKSIZE=27648),UNIT=DISK, // SPACE=(CYL,3336),VOL=SER=TST003 //CATDD DD DSN=SYS2.TEST.LIBRARY, // DISP=(OLD,CATLG),UNIT=DISK, // VOL=SER=(TST001,TST002,TST003) ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html

