Reserve licenses

The AVEVA Enterprise Licensing model supports concurrent and reserved licenses. By default, all licenses are managed as concurrent licenses. In the concurrent license model, devices and users acquire licenses on a first-come-first-served basis.

The reserved license model ensures that specific devices or users are assigned a license. Only one reservation can be placed on a license at a time. However, if a single license contains multiple parts, such as more than one client, each part can be reserved individually. Once all concurrent licenses are acquired, any new users or devices are denied a license unless it has been reserved for them or concurrent licenses become available.

If you have multiple of the same license, for the same product hosted in the same License Server, reservations are not needed. However, if one or more licenses have unique functionality, then reservations are needed to ensure that the proper devices acquire those unique licenses.

Important: Reserving a license that is currently acquired by a device other than the device assigned in the reservation does not release the license from the device. The reservation takes effect the next time the license is released, and the assigned device acquires the license.

There are two types of license reservation:

• Device reservation

  Reserving a specific product license to a device guarantees that a user accessing that device can use the reserved license as long as the user is authorized by the licensed product.

  Licenses can be reserved for any type of device, depending upon the configuration and functionality of the product.

  Servers or back end type applications can only be reserved for devices as they typically run as a background service, and will always use the computer name on which this back end runs. Clients or connection licenses can also be reserved for devices, but the expected device identification might vary with the product. Refer to your specific product documentation for more information.

  For more information about reserving licenses for devices, see Reserve licenses for devices.

• User reservation

  Reserving a license for a specific user guarantees that the user can use the reserved license as long as the user is authorized by the licensed product.

  User reservation is the primary use case for reserving connection licenses. Reserving licenses to a user is helpful when the same user needs access to the application from different devices at different times, and be guaranteed to have a license available when needed.

  For some products, a license will be reserved for a user automatically when the product acquires the license. No manual reservation procedure is necessary in these cases.

  For more information about reserving licenses for devices, see Reserve licenses for users.

  Note: The device and user identifiers entered when reserving licenses must match the device and user identifiers known to the relevant computer or domain.

There are two methods for license reservation:

• You can use the Device Reservation and User Reservation tabs in the Server Details page. For more information about reserving licenses for devices and users, see Reserve licenses for devices and Reserve licenses for users, respectively.

• You can export, edit, and import a <Reservations>.csv file. This file has the details of the Device Reservations or User Reservations. For more information, see Export and import reservations for devices and Export and import reservations for users.