6.2

Table Of Contents
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The vCloud Director or vCloud Air organization must be enabled.
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The reservation must have capacity remaining in its machine quota or have an unlimited quota.
The allocated machine quota includes only machines that are powered on. For example, if a
reservation has a quota of 50, and 40 machines have been provisioned but only 20 of them are
powered on, the reservation’s quota is 40 percent allocated, not 80 percent.
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The reservation must have sufficient unallocated memory and storage resources to provision the
machine.
In a Pay As You Go reservation, resources can be unlimited.
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If the blueprint has specific network settings, the reservation must have the same networks.
If the blueprint or reservation specifies a network profile for static IP address assignment, an IP
address must be available to assign to the new machine.
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Any blueprint templates must be available on the reservation. If the reservation policy maps to more
than one resources, the templates should be public.
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If the request specifies an allocation model, the allocation model in the reservation must match the
allocation model in the request.
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If the blueprint specifies a reservation policy, the reservation must belong to that reservation policy.
Reservation policies are a way to guarantee that the selected reservation satisfies any additional
requirements for provisioning machines from a specific blueprint. For example, you can use
reservation policies to limit provisioning to compute resources with a specific vApp template.
If no reservation is available that meets all of the selection criteria, provisioning fails.
If multiple reservations meet all of the criteria, the reservation from which to provision a requested
machine is determined by the following logic.
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Reservations with higher priority are selected over reservations with lower priority.
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If multiple reservations have the same priority, the reservation with the lowest percentage of its
machine quota allocated is selected.
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If multiple reservations have the same priority and quota use, machines are distributed among
reservations in round-robin fashion.
If multiple storage paths are available on a reservation with sufficient capacity to provision the machine
volumes, storage paths are selected according to the following logic.
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If the blueprint or request specifies a storage reservation policy, the storage path must belong to that
storage reservation policy.
If the custom property VirtualMachine.DiskN.StorageReservationPolicyMode is set to Not
Exact, and no storage path with sufficient capacity is available in the storage reservation policy, then
provisioning proceeds with a storage path outside the specified storage reservation policy. The
default value of VirtualMachine.DiskN.StorageReservationPolicyMode is Exact.
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Storage paths with higher priority are selected over reservations with lower priority.
IaaS Configuration for vCloud Air and vCloud Director
VMware, Inc. 25