Setting up Redundant License Servers

The following requirements and recommendations are for system administrators:

1. First, select the computers on which the License Servers will reside.

2. Various factors, including network performance, affect this decision. The leader should be in an area of the network with good bandwidth because it must communicate with all other redundant License Servers,

3. The system administrator must define at least three redundant License Servers. If the pool is set up with only a single server, the redundant server pool will never be formed.

4. A License Server can only exist in one license pool.

5. Each computer on which a redundant License Server resides must have a static, fixed IP address. Do not use DHCP to dynamically allocate IP addresses for those computers.

6. Reverse DNS resolution is necessary for the redundant License Server setup.

7. Specify the IP addresses in either IPv4 or IPv6 format. A redundant pool cannot have mixed servers (both IPv4 and IPv6). Consequently, a redundant server can work either in IPv6 or IPv4 mode-as long as the server is running and not removed from the redundant pool.

8. After establishing the License Servers for redundant setup, obtain their locking codes and pass them to the AVEVA license administrator.

9. Setting up the redundant License Servers requires access privileges to all computers and areas of the network on which License Servers are to be installed. If changes are made to the redundant license file, those changes will not be transferred to all License Servers in the redundant License Server pool unless network and write access to each of the redundant License Server computers is allowed. If any of these computers run Windows, the system administrator must have administrator privileges to make changes that affect the License Servers on those computers.

10. The License Servers in the redundant License Server pool must have the same version.

11. The License Servers must preferably be running on the same platforms (for example, Windows).