As far as I can see, this is all fine and good assuming that these two sites are in the same RIR's domain.
Is it possible/allowable to move one of these datacenters to a different geographical region with a different RIR and keep using the same two subnets, or will a new /24 need to be requested from the new RIR?
If there's a book or reference that answers this question, please let me know - I'm willing to do as much research on my own as I can.
- RIR Comparative Policy Overview http://www.nro.net/category/documents/rir-comparative-policy-overview and AfriNIC http://www.afrinic.net/policy.htm APNIC http://www.apnic.net/policy/current ARIN http://www.arin.net/policy LACNIC http://lacnic.net/en/politicas RIPE NCC http://www.ripe.net/ripe/policies/ -M