DAG on WAN with Inconsistent Link

We want to implement Exchange 2013 DAG in two different sites Site A and Site B, both sites are geographically different and running on MPLs and Satellite link. But MPLs link on Site-B is very inconsistent and it goes down every day for 3-4 hours. The response
time is 45ms TTL=120 only. So whenever link goes down we switch link to Satellite link which is worst than MPLs. Response time on Satellite link is 800ms.
We had created test lab and configure DAG between two sites, but whenever MPLs link goes down or switch to Satellite link, we had to reseed database copy to remote sites, and total database size is 4TB. Our ultimate target is to run Exchange 2013 high availability
between each local site and site resilience between two different sites.

or read this from exchange team ..you don't even need two name spaces and quorum on 3rd site will also avoid the issue of DAG going down
http://blogs.technet.com/b/scottschnoll/archive/2012/11/01/storage-high-availability-and-site-resilience-in-exchange-server-2013-part-3.aspx
Since you can failover the namespace between datacenters now, all that is needed to achieve a datacenter failover is a mechanism for failover of the Mailbox role across datacenters. To get automatic failover for the DAG, you simply architect a solution where
the DAG is evenly split between two datacenters, and then place the witness server in a
third location so that it can be arbitrated by DAG members in either datacenter, regardless of the state of the network between the datacenters that contain the DAG members. The key is that third location is isolated
from network failures that affect the first and/or second location (the locations containing the DAG members).
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Message was edited by: a2dox

I guess my other question would be if this is even the right setup if I want to be able to use my printer with the AEBS and my MacBook. (I don't need to share the printer with the PC.)

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Hypertec wrote:
Hey EZ Jim,
Thank you so much for your responce.
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DAG on WAN with Inconsistent Link

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