As mentioned, Quantum's Data Protection System is designed to counter avoidable data loss. It works by determining whether the harddisk is the source of a fault and spares the user unnecessarily removal and replacement of a perfect harddisk. DPS is in essence a software solution booted off a floppy, fully supported by the harddisk's electronics, either a DPS Quick Test for a general checkup or Extended Test for the entire harddisk.

If the DPS Quick Test finds no errors in the first 300 MB of data and the system continues to malfunction, run the DPS Extended Test. This test performs all Quick Test functions, and examines all additional data areas to determine whether they are the source of the problem.

Thus Quantum's DPS helps prevent avoidable data loss. It not protects data and maintains end-user productivity, but system integrators, distributors, resellers, and OEMs reduce service costs. Harddisks can now be diagnosed at home without bringing the whole system or HD in for servicing.