What about using a disk storage unit ?.
You can use disk as a storage unit - you just need a disk drive with plenty of free space. The device wizard can help you creating a basic disk storage unit.
PRZEMOL i've looked for the same thing but to no avail.
I think PRZEMOL wants to simulate the data going through tape devices (simulate throughput) and not directly to disk, given that the production system does not go directly to disk you would want to test in a like/like environment.
If anyone knows of any free tape drive emulators that would be greatly appreciated.
But VTL is disk's in disguise so what is the diffrence
Did find a Linux VTL type project: http://sites.google.com/site/linuxvtl2/
and some pages regarding the VTL project: