Exchange 2003 WAN Architecture
Posted on 2005-05-15
I work for a place that does a very high volume of email and we have 5 remote sites and a total of about 3000 users. All the remote sites, use a DS3 (45mbit) WAN link and the farthest site is about 2200 miles cross country and has a latency of about 55ms. On those links, there is usually a steady stream of HTTP traffic that is around 10mbit. At the moment our mailboxes are HUGE. Some get up to almost 10GB. We are opening a new datacenter soon and we are uncertain if we should make 1 large Exchange cluster there or make smaller ones at each of the sites. I know some companies are much larger and use a datacenter to centralize their email but I am unsure just how they do it. All of the clients are Outlook 2003 as well but cached mode is not an option for us and it conflicts with some of our apps. Some suggestions or links to whitepapers would be quite useful. Thanks!