Hi Ronnie,
The Raid 0 setup must be made by Meridian remotely.
My understanding is they will all ship Raid 1 and the Raid 0 can be requested via the dealer to Meridian, I don't think any will ship as Raid 0.
They change the Raid configuration remotely once it has been connected to your system, is online and in contact with HQ.
As you rightly stress this will completely wipe the entire contents of both drives.
The same process is currently available for the MC600.
I've not done this myself yet, so can't comment on the precise steps involved.
Cheers,
Rick