Enhanced capacity cartridge system tape is a special 3490 tape cartridge that can be used only on 36-track 3490 tape devices. You can write twice as much data on this tape as you can on a standard cartridge system tape.

The differences between enhanced capacity cartridge system tapes and standard cartridge system tapes do not present a concern unless you are copying the contents of one tape to another in a tape environment that mixes media (enhanced capacity cartridge system tapes and standard cartridge system tapes).

During TAPECOPY processing, if standard 3490 tapes are mounted when enhanced capacity tapes are needed, or vice versa, processing failures occur. You can avoid these failures by directing DFSMShsm to issue messages to the operator indicating whether standard tapes or enhanced capacity tapes should be mounted during TAPECOPY processing.