Managing the Redundancy License

The Hot Standby Redundancy requires a license. The license file specifies the MAC addresses of the Legacy orchestrator appliances for Site-A and Site-B.

Two commands allow you to manage the license for the redundancy feature:

• redundancy license import filename – Importing the license file with this command is the first step in configuring redundancy. If you do not import the license file, you will not be able to start redundancy.
• redundancy license reset – Use this command to uninstall the license. You should reset the license (that is uninstall it) before re-importing the existing license or importing a new license.

Note: The redundancy license commands must be executed on the Legacy orchestrator appliances at both sites. The redundancy feature will only start if the same valid license has been imported at both sites. All commands can be run from the appliance console. See Accessing the Appliance Console.

CAUTION: Please carefully read and adhere to the following regulations. Failure to do so may result in the improper functioning of the Hot Standby Redundancy system:

1. Redundancy control commands MUST ONLY be executed on one site at a time.
2. Ensure that all redundancy control command operations (such as start, stop, restart, etc.) are fully completed before performing any other actions.
3. Contact our technical support team if any unexpected errors occur.

If you want to import a license, the license file must be present on the Legacy orchestrator appliance. See Copying the License File to Both Sites.

Replacing a License

Please follow the three sections below in sequence to complete this procedure.

To stop HA and config preferred site

The commands below must be done via AppMon on the active site only.

1. Stop the redundancy feature by entering:
   redundancy control stop

2. Config the preferred site (site-a or site-b) to ensure that this site remains the active site and to prevent the latest database loss on HA system when HA restarts:
   redundancy config preferred < site-a or site-b >

To reset and import a license

This procedure must be repeated in the console of the Legacy orchestrator appliance at both sites.

1. Check HA’s status again and ensure HA’s status is “Stopped” by entering:
   redundancy show status

   Note: if the HA’s status is “Started” on this site, stop HA again on this site by entering:
   redundancy control stop

2. Uninstall the license that is currently installed by entering:
   redundancy license reset

3. Import the license for the redundancy feature by entering:
   redundancy license import filename fullPath/licenseFilename

   Example of full path and filename: /data/drbd-proxy.license

To start HA again

The commands below must only be done via AppMon on the site of section I.

1. Start the redundancy feature by entering:
   redundancy control start

2. Ensure that redundancy is started by entering:
   redundancy show status

   The output should indicate that the global status is Started.