Disk Library (DL)
This is commonly known as VTL (Virtual Tape Library).
There are quite a few variations of the existing 3 models out in the industry that can support various different configurations.
EMC entered the market late on the VTL’s, but along with presence of the front end software from FALCONSTOR, they have done amazing great in the market.
Below is a list of 3 major DL versions in the market and a small comparison chart.