The Allocation Pool allocation model in the Committed service offering enables providers to aggregate resources in bulk, with a minimum upfront capacity guarantee for target service subscribers whose workloads demand more stringent service levels for capacity availability and performance. Like the Basic service offering, this service tier provides equal or better flexibility in the way resources are allocated through published vApp catalogs in vCloud Director. Subscribers gain flexibility through entitlements to create their own custom and private vApp catalogs as well as to use any public catalogs and standard application images that may be made available by the provider.

Table 16 provides an example of different sizing combinations that can be included in a Committed service offering (virtual datacenter) catalog. Values in the CPU Guarantee and Memory Guarantee columns reflect a 75% resource guarantee listed in the example in Table 15. Depending on the customizable sizing options made available by a provider of this service, subscribers may be able to specify non-standard combinations of resources such as CPU, memory, and storage types and quantities. It is still recommended, however, that providers first implement a pricing model commensurate with the range of scale for each resource type.