You can distribute license information for software
products that use i5/OS™ license management. 
For these products, the license information includes message queues to receive messages, the log violations indicator, the usage limit, and software license keys. The current list of license users is not distributed from the central system to the target systems.
To display a list of software products and features that use license management, run the Work with License Information (WRKLICINF) command.
You can include all of the software license information for all of the target systems on your distribution media. The appropriate license information for each target system is automatically loaded as part of the installation process.
Setting the usage limit is different depending on the type of
product being distributed. The usage limit for standard products that contain
license information must be set on the central system before you create the
distribution media. It is then automatically included on the distribution
media and distributed to the target systems. For keyed products, the usage
limit is part of the license key. Every keyed product on each target system
requires a unique key for the product to run on the target systems. Thus,
you must add all the license keys for all the target systems to the distribution
media before you create the distribution media.
When to distribute license information for licensed programs
The appropriate time to distribute license information for a licensed program is when you install a new license term for that program.
The license term is the length of time the authorized usage limit for a licensed program lasts. The usage limit can last for a version, a release, or a modification level.
For example, if the license term for product X is by version, the authorized usage limit is valid for the entire version of the product. When license information has been installed for product X, it will not be installed again until a new version of product X is distributed. This original license information is preserved at the target systems even when new release and modification levels are installed. When a new version of product X is distributed, the usage limit may need to be changed on the target systems.
Software license keys
The license keys file contains the software license keys you want to distribute.
When
you use option 40 (Create a distribution media) on the GO LICPGM menu or run
the Save System (SAVSYS) command, the system adds the file to the distribution
media. The QALZALPKEY file is deleted from the target systems after the license
keys are loaded.
A warning message that specifies the date that the grace period expires is sent to the message queue each day a keyed product is used. The message is sent to the QSYSOPR message queue and any other message queues that you have defined through the Change License Information (CHGLICINF) command.