Can I load-balance incoming traffic across multiple OWA servers?

A. Yes. If you're running Microsoft Windows NT 4.0 Enterprise Edition, you can build load-balancing clusters that route incoming traffic evenly across Outlook Web Access (OWA) servers—up to 32 at a time. Each node gets an equal share of the incoming traffic. (This isn't the same thing as clustering.) How do you perform this wizardry? You need a free NT Server 4.0 add-on component called the Windows Load Balancing Service (WLBS). Get it from Microsoft's Windows NT Server 4.0 Web site. Once you download the component, see "XWEB: Using Outlook Web Access with Windows Load Balancing Service (WLBS)," Microsoft article Q226470, for details on how to set it up with OWA.

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