One of the more difficult management activities involved with providing Cloud services to multiple organizations is ensuring that each organization has access to only the resources that it should. To alleviate this problem, Cloud Manager enables you to group resources and assign the resource groups to the appropriate organizations. When an organization creates a business service, the business service is deployed to a resource group assigned to the organization.
A resource group is a collection of hosts or clusters and their associated resources (CPUs, memory, networks, and storage). In VMware vSphere environments, a resource group can also be a resource pool.
You can have both dedicated and shared resource groups. A dedicated resource group services only one organization, while a shared resource group services more than one organization.
Cloud Manager also monitors resource utilization for the entire system and for individual organizations. By comparing used resources against resource capacity, you can ensure that your overall system and each individual organization has sufficient resources