Initial vRealize Automation (vRA) Configuration Part 4 - Create A Reservation

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Create a Reservation

Reservations represent slices of physical resources that have been assigned to a business group.  A reservation determines the mapping of the group to the physical resources and acts as a quota against that set of resources.  A business group can have more than one reservation assigned to it, but each reservation is only assigned to one business group.  Additionally, a single business group can be assigned more than one reservation on the same set of physical resources.  When a request is submitted, the system attempts to find a reservation that matches the request’s needs.  If one is found, the request continues to provisioning.  If one is not found, the request fails on the resource allocation step.

At least one reservation is required in order to provision any items that include the creation of virtual machines or instances.  It is possible to request an XaaS catalog item without a reservation because the XaaS blueprints are routed through vRealize Orchestrator and do not necessarily result in resources being provisioned.

Use the following procedures to create a reservation.

  1. Click the Infrastructure tab.
    Click the Infrastructure Tab
  2. Click the Reservations sub-menu located on the left.
    Click the Reservation submenu
  3. Click the Reservations menu option on the left.
    Click the Reservations menu item
  4. Click the “New” button.
    Click the New button
  5. Click the “vSphere (vCenter)” menu option.
    Click the vSphere Menu Item
  6. Select the Business group to associate with the reservation.
    Select the business group to associate
  7. Enter the reservation’s priority (1 if this is the frst reservation for this business group).
    Enter the priority
  8. Click the Resources tab.
    Click the Resources tab
  9. Select a compute resource (cluster) from the list.
    Select a compute resource
  10. Enter a memory amount for this reservation, which will be the limit of the consumable memory for machines provisioned to this reservation.
    Enter a memory amount for this reservation
  11. Select a datastore to tie to the reservation. It is normally recommended to only select one unless you are using storage reservation policies which can help guide the placement of storage or if you would like to use round robin placement to determine storage usage for VMs.
    Select a datastore
  12. Enter a storage usage limit for each datastore checked.
    Enter a storage limit
  13. Enter a numeric priority for each datastore which will determine the order in which machines are placed on datastores at provision-time.
    Enter a priority
  14. Click the “OK” button located under the datastore line in the table.
    Click the OK Button
  15. Click the Network tab.
    Click the Network tab
  16. Check the box next to a port group or distributed virtual port group to associate it with this reservation. It is recommended to only select one unless you want to use a round robin placement scheme to select a network to connect VMs to, or unless you have created network profiles to assign to the networks.  If you have a network profile to assign, you can do so by clicking the Network Profile drop-down next to the checked network you want to assign it to.
    Assign networks
  17. Click the “OK” button located at the bottom of the page to complete the creation of the reservation.
    Click the OK Button

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