Another use of Weight Factors is to provide connection-level fault tolerance by keeping a backup Transaction Server ready to take over the load if the other Transaction Servers in your network fail. If you assign a Weight Factor of zero to the backup Transaction Server, the NameServer does not select it to fill any of the incoming Web requests. If the NameServer loses connection with all the other Transaction Servers that support the application service, the NameServer directs all the Web requests to the backup Transaction Server.

For more information on load balancing and fault tolerance, see OpenEdge Getting Started: Installation and Configuration.