VCP-IaaS Study Notes: Section 6.2

This is Section 6.2 in the VCP-IaaS blueprint Guide 1.2. The rest of the (completed) sections can be found here.

List Allocation Models

Explain the concept of an Organization VDC

    • Create an organization vDC to allocate resources to an organization. An organization vDC is partitioned from a provider vDC. A single organization can have multiple organization vDCs.
    • An organization vDC obtains its compute and storage resources from a provider vDC. The organization vDC provides these resources to vApps and virtual machines in the organization.

Create/Modify/Delete an Organization VDC

  • Create
    • You allocate resources to an organization by creating an organization vDC that is partitioned from a provider vDC. A single organization can have multiple organization vDCs.
    • Open the Allocate Resources Wizard
      • Open the Allocate Resources wizard to start the process of creating an organization vDC for an organization.
      • Procedure
        • Click the Manage & Monitor tab and click Organizations in the left pane.
        • Right-click the organization name and select Allocate Resources from the menu.
        • The Allocate Resources wizard starts.
        • Select a Provider vDC
        • An organization vDC obtains its compute and storage resources from a provider vDC. The organization vDC provides these resources to vApps and virtual machines in the organization.
        • Procedure
          • Select a provider vDC.
            • The provider vDC list displays information about available resources and the networks list displays information about networks available to the selected provider vDC.
          • Click Next.
    • 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
        • Select an allocation model.
        • 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
        • Select the allocation model options.
          • Not all of the models include all of the options

        • Click Next.
    • Allocate Storage
      • An organization vDC requires storage space for vApps and vApp templates. You can allocate storage from the space available on provider vDC datastores.
      • Thin provisioning can help avoid over-allocating storage and save storage space. For a virtual machine with a thin virtual disk, ESX/ESXi provisions the entire space required for the disk’s current and future activities.
      • ESX/ESXi commits only as much storage space as the disk needs for its initial operations.
      • Fast provisioning saves time by using vSphere linked clones for certain operations.
      • IMPORTANT Fast provisioning requires vCenter Server 5.0 and ESXi 5.0 hosts. If the provider vDC on which the organization vDC is based contains any ESX/ESXi 4.x hosts, you must disable fast provisioning. If the provider vDC on which the organization vDC is based contains any VMFS datastores connected to more than 8 hosts, powering on virtual machines may fail. Make sure that datastores are connected to a maximum of 8 hosts. NOTE changed in vCloud 5.1. Max is now 32 hosts.
      • Procedure
        • Enter the amount of storage to allocate.
        • (Optional) Select the Enable thin provisioning check box to enable thin provisioning for virtual machines in the organization vDC.
        • (Optional) Deselect the Enable fast provisioning check box to disable fast provisioning for virtual machines in the organization vDC.
        • Click Next.
    • Select Network Pool
      • A network pool is a group of undifferentiated networks that is used to create vApp networks and NAT-routed or internal organization networks.
      • Procedure
        • Select a network pool or select None.
          • If you select None, you can add a network pool later.
        • Enter the maximum number of networks that the organization can provision from the network pool.
        • Click Next.
    • Name the Organization vDC
      • You can provide a descriptive name and an optional description to indicate the vSphere functions available for your new organization vDC.
      • Procedure
        • Type a name and optional description.
        • Click Next.
    • Confirm Settings and Create the Organization vDC
      • Before you create the organization vDC, review the settings you entered.
      • Procedure
        • Review the settings for the organization vDC.
        • (Optional) Click Back to modify the settings.
        • Click Finish to accept the settings and create the organization vDC.
    • When you create an organization vDC, vCloud Director creates a resource pool in vSphere to provide CPU and memory resources.
  • Modify
    • Modify an Organization vDC Name and Description
      • As your vCloud Director installation grows, you might want to assign a more meaningful name or description to an existing organization vDC.
      • Procedure
        • Click the Manage & Monitor tab and click Organization vDCs in the left pane
        • Right-click the organization vDC name and select Properties
        • On the General tab, type a new name and description and click OK.
        • You can use the name and description fields to indicate the vSphere functions available to the organization vDC, for example, vSphere HA.
    • Edit Organization vDC Allocation Model Settings
      • You cannot change the allocation model for an organization vDC, but you can change some of the settings of the allocation model that you specified when you created the organization vDC.
      • Procedure
        • Click the Manage & Monitor tab and click Organization vDCs in the left pane
        • Right-click the organization vDC name and select Properties
        • On the Allocation tab, enter the new allocation model settings and click OK
          • These settings only affect vApps that you start from this point on. vApps that are already running are not affected. The usage information that vCloud Director reports for this organization vDC will not reflect the new settings until all running vApps are stopped and started again.
    • Edit Organization vDC Storage Settings
      • After you create and use an organization vDC, you might decide to provide it with more storage resources from its source provider vDC. You can also enable or disable thin provisioning and fast provisioning for the organization vDC.
      • Procedure
        • Click the Manage & Monitor tab and click Organization vDCs in the left pane
        • Right-click the organization vDC name and select Properties
        • On the Storage tab, enter the new storage settings and click OK
          • IMPORTANT Fast provisioning requires vCenter Server 5.0 and ESXi 5.0 hosts. If the provider vDC on which the organization vDC is based contains and ESX/ESXi 4.x hosts, you must disable fast provisioning.
    • Edit Organization vDC Network Settings
      • You can change the maximum number of provisioned networks in an organization vDC and the network pool from which the networks are provisioned.
      • Procedure
        • Click the Manage & Monitor tab and click Organization vDCs in the left pane
        • Right-click the organization vDC name and select Properties
        • On the Network Pool tab, enter the new network settings and click OK.
  • Delete
    • You can delete an organization vDC to remove its compute, memory, and storage resources from the organization. The resources remain unaffected in the source provider vDC.
    • Prerequisites
      • Disable the organization vDC and move or delete all of its vApps, vApp templates, and media.
    • Procedure
      • Click the Manage & Monitor tab and click Organization vDCs in the left pane.
      • Right-click the organization vDC name and select Delete.
      • Click Yes.

Enable/Disable an Organization VDC

  • You can disable an organization vDC to prevent the use of its compute and storage resources by other vApps and virtual machines. Running vApps and powered on virtual machines continue to run, but you cannot create or start additional vApps or virtual machines.
  • Procedure
    • Click the Manage & Monitor tab and click Organization vDCs in the left pane.
    • Right-click the organization vDC name and select Enable or Disable.

Select Organization VDC components

  • Im just guessing what the blueprint is trying to tell me here, select components… Could mean a lot of things.
  • Allocation Model
    • Selected when creating a new Org vDC. Cannot modify after creation.
  • Network Pool
    • Selected when creating a new Org vDC. Can modify after creation.
  • Provider vDC
    • Selected when creating a new Org vDC. Cannot modify after creation.

Select/Edit Organization VDC resources

  • Allocation
    • See Modify Org vCD in the bullet: Create/Modify/Delete an Organization VDC
  • Storage
    • See Modify Org vCD in the bullet: Create/Modify/Delete an Organization VDC
  • Network Pool
    • See Modify Org vCD in the bullet: Create/Modify/Delete an Organization VDC

Configure Allocation Model settings

  • See Modify Allocation Settings in bullet: Create/Modify/Delete an Organization VDC
  • Example
    • Allocation Pool

    • Pay-as-you-Go

      • Resource pools created to support Pay-As-You-Go organization vDCs will always have no reservations or limits. Pay-As-You-Go settings only affect overcommitment. A 100% guarantee means no overcommitment is possible. The lower the percentage, the more overcommitment is possible.
    • Reservation Pool

Determine the appropriate network pool for a given Organization vDC network

  • VLAN Backed Pool
  • Port group Backed Pool
  • Cloud Isolated Pool
  • Please refer to Secton 4.2, bullet: Determine appropriate backing for a given Network Pool

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