Explanation/Reference:
Explanation:
Best practices for deploying a federation server farm. We recommend the following best practices for deploying a federation server in a production environment:
(A) Use NLB or some other form of clustering to allocate a single IP address for many federation server

computers.
If the AD FS configuration database will be stored in an SQL database, avoid editing the SQL database

from multiple federation servers at the same time.
If you will be deploying multiple federation servers at the same time or you know that you will be adding

more servers to the farm over time, consider creating a server image of an existing federation server in the farm and then installing from that image when you need to create additional federation servers quickly.
Reserve a static IP address for each federation server in the farm and, depending on your Domain

Name System (DNS) configuration, insert an exclusion for each IP address in Dynamic Host Configuration Protocol (DHCP). Microsoft NLB technology requires that each server that participates in the NLB cluster be assigned a static IP address.