Upgrading App Volumes Agents

Upgrading App Volumes Agents

Verifying Existing App Volumes Agents

Before you upgrade the agents, note the Windows Registry configuration information, for comparison purposes later if you find upgrade issues. Also verify that the newly upgraded App Volumes Manager servers work with the existing agents.

1. Record the Current Registry Settings

  1. On the App Volumes Agent machine, open the Registry Editor and navigate to the following paths: HKLM\SYSTEM\CurrentControlSet\services\svservice\Parameters HKLM\SYSTEM\CurrentControlSet\services\svdriver\Parameters
  2. Take a screenshot of all the information listed in each path.

This information is for troubleshooting purposes. If the upgrade is successful, you will not need to refer to this information again.

2. Verify That the Upgraded App Volumes Manager Works with Current Agents

  1. Log in as an end user to a desktop that has the current App Volumes Agent installed.
  2. Verify that AppStacks and writable volumes are attached and working as expected now that you have upgraded the App Volumes Manager servers.
    For example, you could open Disk Management to view that writable volumes (CWritable in the screenshot) and AppStacks (CVApps in the screenshot) are attached.

Optional Steps to Disable Certificate Validation with App Volumes Manager

These steps are only necessary if you want to disable secure communications between the App Volumes Agent and App Volumes Manager. This can be useful for initial testing, but should be changed to secure communications for production implementations.

  1. In the Registry Editor, navigate to: HKLM\System\CurrentControlSet\Services\svservices\Parameters
  2. Set the SSL key 0 (zero).
  3. Restart the App Volumes service.

Upgrading App Volumes Agents

  1. Log in with Administrator privileges to the machine where the App Volumes Agent is installed.
  2. Before beginning the App Volumes Agent upgrade process, make sure there are no AppStacks or writable volumes attached.
    For example, open Disk Management to view the disks.
  3. Stop the App Volumes Agent service.
  4. Install the latest App Volumes Agent.

Verifying a Successful App Volumes Agent Upgrade

  1. Test for end-user functionality using a VM with the new App Volumes Agent installed.
  2. Verify AppStacks and writable volumes are attaching and working as expected before upgrading the App Volumes Agent on additional machines.