App Layering


To install the App Layering service, you deploy the appliance to a virtual machine in XenServer. If the appliance requires a static IP address, you configure one using the appliance configuration utility. The last section describes the next steps.


To start installing App Layering, you need the following:

  • A supported version of XenServer
  • Storage
  • XenServer account and privileges A XenServer account to use for App Layering service. The account must have XenServer privileges to:
    • Create and remove virtual disks.
    • Copy and delete layers on virtual disks by using XenServer file APIs.
  • XenServer software and settings Access to the XenServer Tools to install on the layer.
  • XenServer resource information The XenServer info listed in XenServer Connector Configuration.

Download the installation package

Download the installation package, citrix_app_layering_citrix-hypervisor_4.x.x, from the Citrix download site. The zip file includes:

File Description
XenServer_x.x.x.ova OVA file for the appliance virtual machine
citrix_app_layering_agent_installer.exe App Layering Agent installer
citrix_app_layering_os_machine_tools.exe OS machine tools

Deploy the App Layering appliance

To deploy the appliance:

  1. Download the installation zip file
  2. Extract the XenServer_elm_4.x.x.x.ova file to a folder on your local drive.

  3. In your XenCenter client, select File > Import.

  4. In the wizard that opens, select the following values:
    • Import Source - Browse to the source on your local drive.
    • Location - Choose the XenServer where you want to deploy the appliance.
    • Storage - Use the default value to put storage disks on the Local XenServer Storage.
    • Networking - Select the correct network for your XenServer configuration.
    • Security - This tab is not available. Click Next.
    • OS Fixup Settings - Select Don’t use Operating System Fixup.
    • Transfer VM Settings - Choose the correct network and choose DHCP.
    • Finish - Review your settings and then click Finish.
  5. Switch to Notification view and wait for the deployment to complete. The process can take 20–35 minutes.

  6. Switch to Infrastructure view.

  7. Select your new appliance, which has the name: Citrix Enterprise Layer Manager.

  8. Click Properties, and enter a new name and description for your new appliance. The new virtual machine has 8 GB of memory and 4 CPUs. Take note of the IP address assigned in the Networking tab.

  9. Start Internet Explorer, type the IP address for the new appliance into the address bar and log in as “administrator” with the password “Unidesk1”.

The first time you log on to the appliance that you are required to change the App Layering administrator passwords, For details, see Change administrative passwords.

Be sure to install the App Layering Agent, if your environment requires it. See the next section for details.

If you want the appliance to use a Static IP address

You can change the appliance’s IP address and/or its DNS servers. When the appliance is first deployed, the DNS settings are retrieved through DHCP. If DHCP is not available and you are using static IP addresses, once you select Static, you are prompted to enter the IP addresses for your DNS servers.

  1. Log in to the Appliance Configuration utility. Using either your hypervisor console or SSH, log in to the appliance as an administrator.

    The first time you log in, use the default password, Unidesk1.

  2. At the Action prompt, enter C (for Configure Networking), and press Return.
  3. At the next prompt, type D for Dynamic (DHCP) or S for Static. If you choose Static, you are prompted for the IP address and Subnet mask, along with the default addresses for the Gateway and DNS addresses.
  4. When prompted, enter Y to save settings.
  5. At the Action prompt, enter Q to quit.
  6. Restart the appliance.

Next steps

Once the appliance is installed and the IP address is correctly configured, you need to: