VMmanager 6: Administrator guide



A license is required to use VMmanager. You can buy it in your client area at my.ispsystem.com or reseller company. The license has an expiry date and a limited number of used CPU cores on cluster nodes.

Licenses purchased before the release of version 6.9.0 have restrictions on:

  • validity;
  • number of virtual machines (VM);
  • the number of cluster nodes;
  • number of LXD containers.

When purchasing a license, you can choose a free trial period of 14 days to learn about the features and test VMmanager.

Three days before the license expiry, VMmanager interface displays a message prompting to renew it. After renewing the license, you need to update the license information in VMmanager.

How to update the license information

Before expiry date

To update the license information, go to SettingsSystem information Update the license.

After expiry date

After expiry of the license, VMmanager will be blocked. Cluster nodes and VMs operation will not be affected, but management via VMmanager will no longer be available. To reactivate VMmanager, renew your license and click Update license information in the pop-up message about the blocking.

Limited number of devices

VMmanager license has a limit on the number of used CPU cores on cluster nodes. When this limit is reached, the ability to add VMs will be blocked. To enable adding new VMs, delete the unused ones or purchase a license with the ability to use more CPU cores.


Licenses purchased before the release of version 6.9.0 have a similar limitation on the number of VMs, cluster nodes, LXD containers.

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