# Usage Calculation for the Virtual Operating Instances (VOI) License

The following data is included in the usage calculation for Virtual Operating Instances (VOI).

All Commvault-supported hypervisors are included in the VOI calculation. To view a complete list of supported hypervisors, see Supported Hypervisors.

VMs are included in the virtual operating instances calculation regardless of the hypervisor type. VMs must have the Commvault File System package (not the File System Core package) installed to consume the VOI license.

## Cluster Clients

For backup operations that include cluster clients, the system makes the following checks:

- If the nodes of the cluster client are all physical machines, the system checks for the OI license.

- If the nodes of the cluster client are all virtual machines, the system checks for the VOI or OI license.

- If the nodes of the cluster client are mixed (some nodes are on a physical server, and some nodes are on a virtual machine), the system checks for the OI license.

Then, the cluster backup job proceeds as follows:

- If the needed license is not present, then the cluster backup job is blocked.

- If the needed license is present and within usage, the cluster backup job is allowed to run.

## VMs in Capacity

After an OI/VOI license is applied to the CommCell environment, all related jobs are removed from the capacity calculation. As a result, the License Summary report does not display any jobs for the client computers that consumed OI/VOI licenses. To view the jobs that were removed from the capacity calculation, see the Current OI Usage Excluded From Capacity Because of OI License table or the Virtual Operating Instances Current Usage Details table.

Only some of the columns appear by default. You can view any additional columns by using the Columns setting.

## Related Topics

Consolidation Rules for Purchased and Used Virtualization Instances (VOI)

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