About Citrix load balancing and prefrential load balancing

By default there are two type of load evaluators in Citrix Xenapp 5.0
1- Advanced
2- Default

Advanced : Available rules
CPU Utilization
Load throttling
Memory usage
Page swaps

This is used when, all servers are not with same configuration.Some are P3 or some p4.

This rule allows your load evaluator to calculate a load based on the number of users accessing a specific published application on the attached server.

When the number of users accessing the published application is less than or equal to the threshold value indicated here, Load Manager reports a load percentage based on the threshold value.

The valid range for this rule is 1 to 10000.

Default : Available rules
Load Throttling
Server user load

This is used when, all servers are same configuration.

This rule allows your load evaluator to calculate a load based on the number of users accessing a specific published application on the attached server.

When the number of users accessing the published application is less than or equal to the threshold value indicated here, Load Manager reports a load percentage based on the threshold value.

The valid range for this rule is 1 to 10000.

creating new load evaluators:
Load evaluator rules:
Application User Load
Context Switches
CPU Utilization
Disk Data I/O
Disk Operation
IP Range
Load Throttling
Memory Usage
Page Swaps
Scheduling
Server User Load

Apply load valuator for server :

Apply load valuator for application

Select application

select Load manage application

Select a server