A reservation reflects memory and storage allocations of the currently active VMs. To allocate part of available resources to a specific business group, you create a vSphere reservation. Also, you associate the NIOS network profile with the reservation.
To create a reservation:

1. Click Infrastructure –> Reservations –> Reservations.
2. Click New –> vSphere (vCenter).
   The New Reservation page appears.
3. On the General tab, complete the following required fields:
   — Name
   — Tenant: The tenant that you configured earlier.
   — Business group: Only users in this business group can provision machines by using this reservation.
   — Priority: The priority is used when a business group has more than one reservation. A reservation with priority 1 is used for VM provisioning over a reservation with priority 2.
   — Enable this reservation: Select this checkbox to enable the reservation.
   

4. On the Resources tab, complete the following fields:
   — Compute resource: Select the previously configured compute resource on which to provision machines.
   — Memory: Specify the amount of memory in GB to be allocated to this reservation.
   — Storage: Select one or more listed storage paths and reserve the capacity.
   
   For information on forcing the resource discovery, see the next section, 17661995.

5. Click the Network tab.

6. Select VM Network, and then select the external Infoblox network profile that you created previously.
   Note: If you use the Infoblox IPAM Plug-In for provisioning VMware NSX load balancers, select a web switch instead of VM network.
   
   
   

7. In Advanced Settings, specify the following for an on-demand routed or NAT network profile:
   — Transport zone
   — Distributed logical router

8. Click OK.
   The new reservation appears in the list.
   Note that when you request a VM, it can be provisioned on any reservation of the appropriate type that has sufficient capacity for the machine, and cannot guarantee from which reservation it is provisioned. You apply a reservation policy to a blueprint to restrict the machines provisioned from that blueprint to a subset of available reservations. A reservation policy is simply a container with a name, which contains one or more reservations. The VMs created from the request use the resources assigned to them from the policy.

Forcing Resource Discovery

If certain resources are not visible during the creation of a new reservation, run the resource discovery process again so they become visible.
To force the resource discovery:

1. Click Infrastructure –> Compute Resources –> Compute Resources.
2. Point to the compute resource associated with the vCenter endpoint and select Data Collection.
   
3. Click Request now. The status becomes “In queue”.
   

4. After a few minutes, click Refresh. The discovery process is completed successfully and displays the “Succeeded” status.
   
   Now you can go back to the Reservation section and verify that the new resources are visible. Note that you must do this every time you add or remove a VM template from ESXi/vCenter so you will see the most up-to-date templates listed when creating a new blueprint.