Hello Everyone, I have a strange question and need some help.. First some history.. I currently run exchange 2003 with GFI mail essentials. My company has has a single domain, but two locations (One in Canada one in the USA). We have only 30 users, about 15 in each country. The Exchange server resides in california and the users in canada access it via an ipsec tunnel. Problem is this is quite slow, and our canadian users and completely out of luck if the internet connection is down. Now, here is what I want to know... I am in the process of transitioning to Exchange 2007. Is there a way to set this up so that the primary server remains in california (Where e-mail is received and delivered to the internet, and half the mailboxes are store) and have a secondary exchange machine in canada that only stores the other half of the mailboxes (but has not other server roles). If more info is required to answer this question please ask. svirf

what about your Active Directory Sites and Services ? how many Active Directory Sites you have ? do you have one for US and another for CANADA ? for each active directory sites you have , you need to have the following Exchange Server 2007 Roles installed and configured: Mailbox Server Role. HUB Server Role. CAS Server Role. you can have the above server roles installed and configured into one server or you can separate them into three different servers, each server has a single exchange role. you can combile HUB and CAS into single server and have the MBX (Mailbox Server) on a separate server. you need to understand the role of Active Directory Sites for Exchange Server 2007, check the following blog article: Exchange Server 2007 Active Directory Site and Connector Selection Algorithms http://msexchangeteam.com/archive/2006/09/14/428920.aspx please let me know if the above post helped you in your case. Regards,

We have two active directory sites .. CALIFORNIA and CANADA. Each one is in a seperate subnet (california is 192.168.2.x and Canada is 192.168.1.x). So what you are saying is that you can have multiple CAS, HUB, and mailbox in one domain? I'm a little lost, and trying to learn this as best as possible. Thanks, Svirf

Hi, Yes you can have multiple HUB, CAS, and MBX under your AD Forest, all under the same Exchange Organization. also if you are looking for Load Balancing, then by default if you have more than one HUB Server under the same AD Site, then by default they are load balanced, both will handle the requests of mail flow. but HUB Server do not support any windows cluster technology (NLB or Cluster), by default as i said they are load balanced if there are more than one HUB under the same AD Site. for CAS, if you have more than one server under the same AD Site, then its recommended to use Network Load Balancing techniques to load balance the client requests to CAS Servers, so CAS do support NLB. for MBX servers, they are support Windows Clustering (Clustered Servers), its support the normal clustering that was support on all Exchange Server versions which is (Single Copy Cluster - SCC), and there are new clustering techniques for Exchange Server 2007, these techniquescalled Cluster Continuous Replication (CCR), Local Continuous Replication (LCR), and new clustering techniques is coming along with Exchange Server 2007 Service Pack 1 (SP1) , its called Standby Continuous Replication (SCR). all these are new techniques for Clustering the new exchange server 2007. for me , i've build till now, three big customers with CCR, and two with SCC, and waiting for SP1 to work on SCR. if you would like to read more about them, then as i told you, i advice you to download the help file for exchange from the link previously i posted in my first reply, also here is a link for Exchange 2007 Documentation which contains more information about the various ways of Exchange Server 2007 Deployment and Senarios: http://technet.microsoft.com/en-us/exchange/bb330844.aspx, go down the page , till you reach "Documentation" section to download all the documentation for Exchange server 2007. please let me know if the above information was helpful for you. Regards,