There are positional parameters that can be placed on the TLBL. You can specify Retention, version, volume serial number, and tape processing options.
This is the layout of the TLBL:
// TLBL filename,'file-id',ret,volser,volseq,fileseq,gen,ver
// TLBL SYS001,'XXXX.YYYY.ZZZZ',,,,,,2
The 2 in the example is VER. This field is used to control various processing functions.
Dynam/T numeric processing options. Place option codes here instead of within file-id if the file-id is too large or contains special symbols.
1 Rewind at CLOSE
2 Unload at CLOSE
4 Release at CLOSE
8 Hold logical unit assignment
16 Drop TLBL at CLOSE
32 No rewind at CLOSE
64 Alter filename at OPEN to SYS0nnn
Chapter 2 of the user guide explains the appropriate value for each positional parameter.