Is it possible to synchronize (and/or provide failover) using more than 2 Open-E units?

Ideal setup: 2x units in local failover/sync at data center. 1x unit offsite in sync with data center setup (not necessarily failover, just so there's a backup of the data).

If not, is there any workaround or other way to get 3 units sync'd?

I'm thinking (using fake numbers):
At data center:
1x Storage = 16TB
1x Storage = 32TB (2 times 1st unit, split into 2x 16TB)
Offsite:
1x Storage = 16TB

At the data center, the 16TB unit would replicate to the 1st half of the 32TB unit... It would do snapshots (is that possible?) onto the second half of the 16TB unit, which would be replicating to the offsite 16TB unit?

Sorry, just tossing out ideas. If anyone has done a 3 way replication/failover/sync, and could throw out some pointers, that would be great. I haven't tried yet (probably test it in VMware), but wanted to know if it's something that's easy, or if it'll come down to playing around and doing some workarounds.