Home > Data Protection > PowerProtect Data Manager Appliance > Dell PowerProtect Data Manager Appliance Configuration Best Practices > Licensing of PowerProtect Data Manager Appliance
As previously noted, PowerProtect Data Manager Appliance is equipped with a default storage capacity license of 12 TB. To increase the storage capacity, you must apply additional capacity licenses. Licenses are available in 12 TB increments to a maximum of 256 TB.
The Dell Electronic Licensing Management System (ELMS) issues the license for the requested capacity. You can also upload the license file manually through the UI, or the appliance can automatically fetch the license from ELMS. The required appliance capacity is enabled once the license is applied successfully.
Note: The default capacity license of 12 TB is valid for 90 days, as noted by warnings in the appliance UI. For information about license activation, see the PowerProtect Data Manager Appliance DM5500 5.16.0.0 Administration Guide.