We have several Data Domain VTL units on lease and need to be returned soon.  Because of contract requirements, we must wipe the data off of the Data Domain units using DoD standards, not just the standard sanitize command.  There is apparently a service you can purchase from EMC where they will do it for you, but with as many units as we have and the cost per unit, the actual cost is astronomically prohibitive.  I am wondering if there is an alternate way to do this in house?