About the resource selection policy
Using this feature, you can define the resource selection policy that Ensim Unify will use to select a resource (hosting server) while provisioning a Unify service to an organization. You can set a different resource selection policy for each Unify service.
This resource selection policy is used only when you choose automatic resource selection while provisioning the Unify service to an organization.
By default, Unify uses the First Fit policy, that is, it selects the first available resource that satisfies all the service-specific requirements. Depending on how you want to utilize your resources, you can now choose between First Fit, Round Robin, and Least Sold Key Quota policies.
The resource selection policy that you choose will not be applied to a resource if:
The Use in Automatic Allocation option is not selected for the resource, or if
The resource is in the disabled state.
While provisioning a Unify service to an organization, either the service provider or a reseller specifies the following:
Name of the pool that contains a list of resources that are capable of hosting that service for the organization.
The resource for hosting this service can be chosen automatically by Unify by selecting the automatic resource selection check box.
Certain quota values for that service as per the organization's requirements.
After all the above three requirements are specified, Unify then chooses a particular resource from that pool that satisfies all the service-specific requirements. This selection of a resource now depends on the resource selection policy.