To specify the host where the adapters will run, you must edit the sources.hosts property in the waveset.properties file.
Specify one of the following settings:
Set sources.hosts=hostname1,hostname2,hostname3. This setting lists the host names of machines to run Active Sync adapters. The adapter will run on the first available host listed in this field.
The hostname you enter must match an entry in the Identity Manager list of servers. View the list of servers from the Configure tab.
Set sources.hosts=localhost. With this setting, the adapter will run on the first Identity Manager server that attempts to start Active Sync for the resource.
In a cluster you should use the first option if you need to specify a specific server.
This property setting applies only to Identity Manager user synchronization. Host configuration for Service Provider user synchronization is determined by the Synchronization Policy.
Active Sync adapters that require more memory and CPU cycles can be configured to run on dedicated servers to help load balance the systems.