Exchange Server Front End

Poweruser

55 pts.

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Exchange Back-End Servers

Exchange Front-End Servers

Microsoft Exchange

In Our Organization we have 2 Exchange Back End servers & 2 Exchange Front End Server.Please kindly update us there is any procedure to change Exchange mails out going from FE02 to FE01 or vice versa in case of any one of the server is down.What about the existing mails in Queues of down server.Please kindly Advise

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Asked: January 15, 2011 11:04 AM Last updated: February 23, 2011 9:29 AM

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Last updated: February 23, 2011 9:29 AM GMT

IceCubbe1,385 pts.
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Thanks. We'll let you know when a new response is added.

@poweruser

Please give more details in this regard, version of exchange ? I presume 2003?

Is your front end servers in a dmz or at an ISP?

How is mails routed to your front end from outside your organization?

Thanks

Discuss This Question: 1 Reply

saturno Jan 15, 2011 4:54 PM GMT

Hi Poweruser, In a common scenario, you have two ways to load balance MS Exchange FE: 1 - DNS with Round Robin; 2 - Network load balancing. The DNS RR approach is the easiest and cheapest way to load balance a web server (Exchange FE). Configuring Round Robin in DNS is as simple as assigning multiple (in this case 2) ip addresses to a unic Fully Qualified Domain Name. In this case the balancing is done by the DNS server which will answer every request with a different IP address. This solution only requires you to configure your DNS infrastructure to be able to load balance those Exchange FE. If you want/need a more robust solution than go for Network Load Balancing. For NLB you need an additional network card in each server and to configure NLB. NLB is a Windows server 2k3 and over service that monitor the availability and load to distribute the load over each node of the cluster. For a more in depth and detailed instruction on both scenarios please read this article. Regards,

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