You are here: Setting Up the Redundant License Managers > Setting up the Redundant License Manager Pool

Setting up the Redundant License Manager Pool

  1. First, install (but don’t run) the License Managers on different computers on the network.

The RMS License Managers must be of the same version.

Tip

Specify at least two systems on which the License Manager will be running. If the redundant server pool is set up with only a single server specified in lservrlf, the redundant server pool will never be formed.

Make sure that you specify 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 or not removed from the redundant pool.

  1. Use rlftool or WRlfTool to add the redundant license codes received from the vendor into the redundant license file (by default named as, lservrlf).

Tip:

By using the lslic utility, redundant licenses can be added dynamically. If the requested server is the follower, it will forward the request to the leader; the leader server will then check the validity of license. If the license can be added, the leader will add that license and forward the license code to all the followers.

  1. Since this is the first time that the redundant License Manager pool has been set up, you need to copy the redundant license file to each of the computers on which the redundant License Managers resides. After this, changes to any one of the redundant license files will automatically be transmitted to each redundant License Manager when one of the License Managers is stopped and restarted.
  2. Bring up each of the License Managers in the pool. Because the redundant license file is in the same directory as each License Manager, each License Manager will automatically start up as a redundant License Manager.

Maintaining the Redundant License Manager Pool

Once redundant License Managers are set up, you can use lspool or WlmAdmin from any computer on the network to view information about the redundant License Manager pool. You must set the LHOST environment variable to point to one of the redundant License Managers when using lspool.

Some lspool options dynamically change the redundant License Manager configuration, but do not write the changes permanently to the redundant license file. When the redundant License Managers are restarted, the changes are lost. However, other lspool options make permanent changes. See Using lspool to Maintain a Redundant License Manager Pool for more details.