1.5

Table Of Contents
Select an Allocation Model
The allocation model determines how and when the provider vDC compute and memory resources that you
allocate are committed to the organization vDC.
Procedure
1
Select an allocation model.
Option Description
Allocation Pool
Only a percentage of the resources you allocate are committed to the
organization vDC. You can specify the percentage, which allows you to
overcommit resources.
Pay-As-You-Go
Resources are only committed when users create vApps in the organization
vDC. You can specify a percentage of resources to guarantee, which allows
you
to overcommit resources. You can make a Pay-As-You-Go organization
vDC elastic by adding multiple resource pools to its providor vDC.
Reservation Pool
All of the resources you allocate are immediately committed to the
organization vDC. Users in the organization can control overcommitment
by specifying reservation, limit, and priority settings for individual virtual
machines.
2
Click Next.
Configure the Allocation Model
Configure the allocation model to specify the amount of provider vDC resources to allocate to the organization
vDC.
Procedure
1 Select the allocation model options.
Not all of the models include all of the options.
Option Action
CPU allocation
Enter the maximum amount of CPU, in GHz, to allocate to virtual machines
running in the organization vDC.
CPU resources guaranteed
Enter the percentage of CPU resources to guarantee to virtual machines
running in the organization vDC. You can overcommit resources by
guaranteeing less than 100%.
Memory allocation
Enter the maximum amount of memory, in GB, to allocate to virtual machines
running in the organization vDC.
Memory resources guaranteed
Enter the percentage of memory resources to guarantee to virtual machines
running in the organization vDC. You can overcommit resources by
guaranteeing less than 100%.
vCPU Speed
Enter the vCPU speed in GHz. Virtual machines running in the organization
vDC are assigned this amount of GHz per vCPU.
Maximum number of VMs
Enter the maximum number of virtual machines that can be created in the
organization vDC.
2
Click Next.
Example: Configuring an Allocation Model
When you create an organization vDC, vCloud Director creates a vSphere resource pool based on the allocation
model settings you specify. See Table 5-1, Table 5-2, and Table 5-3.
Chapter 5 Managing Cloud Resources
VMware, Inc. 45