Name: Mastering Dongle Management with OpenLM Platform
Start: 2026-03-05T10:00:00+00:00
End: 2026-03-05T17:00:00+00:00
Location: OpenLM

IBM LUM license management and optimization with OpenLM

IBM License Use Management (LUM) is a long-standing license manager developed by IBM, historically preferred for products running in Unix and Solaris environments. While many applications (like CATIA) have migrated to successor license managers, IBM LUM is still the approved license manager for AIX (Advanced Interactive eXecutive) Unix sites and continues to manage licenses for various IBM products, including Rational and Telelogic.

OpenLM provides full, comprehensive support for the IBM LUM license manager. OpenLM IBM LUM monitoring delivers real-time usage data, denial reports, and support for complex configurations like High Availability Licensing (HAL), ensuring compliance and maximizing the return on your legacy software assets.

Understanding IBM LUM licensing: Networked and high availability

IBM LUM operates on a server-based model, offering flexible distribution of licenses across an organization’s network.

What is IBM LUM?

IBM LUM (License Use Management) is a centralized license server application that hosts license files and serves licenses to client applications that require them. It functions as a technical software license manager, similar to FLEXlm/FLEXnet. The LUM server provides a high degree of certainty that concurrent licenses will always be available.

IBM LUM licensing schemas

IBM LUM supports the core concurrent and high-availability models necessary for high-value engineering and technical software:

Served license model (Concurrent): Licenses are stored centrally on the License Key Server. Applications connect over a network to obtain a license. The server daemon tracks how many licenses are checked out, who has them, and writes usage information to a log file.
Nodelocked licenses: Licenses are stored locally on the same computer as the application for single-desktop use.
High availability licensing (HAL): LUM supports a complex configuration called a HAL Triad (Cluster), which provides redundancy. This ensures licenses remain available even if one network license server fails to function.
License types: LUM manages concurrent, concurrent-offline (borrowed), reservable, and use-once licenses.

OpenLM’s solution for IBM LUM license monitoring and optimization

OpenLM fully supports the IBM LUM software and provides a flexible architecture that manages complex configurations, including LUM’s unique features like features versions. The recommended integration method uses the OpenLM Broker to query the server locally using the i4blt.exe utility.

OpenLM capability	Value for IBM LUM licenses	Supported by OpenLM
Real-time usage monitoring	Tracks usage activity with high-resolution reporting, available by Minute.	Yes
License inventory	Provides license inventory reporting, including total count and licenses in use.	Yes
License denials reporting	The recommended OpenLM Broker configuration enables the collection of license denial information.	Yes
Borrowed license reporting	Provides tracking and reporting for licenses temporarily borrowed (concurrent-offline licenses).	Yes
Expiration date reporting	Track when your IBM LUM licenses are due to expire, allowing for proactive renewal planning.	Yes
Multiple server redundancy support	OpenLM fully supports monitoring LUM’s HAL (High Availability Licensing) Cluster schemes.	Yes
Project and Group billing	OpenLM’s advanced functionality, such as License Usage Billing for groups or projects, is supported for IBM LUM.	Yes

The OpenLM advantage for IBM LUM license management

OpenLM ensures that organizations using IBM LUM for critical applications like IBM Rational/Telelogic or legacy CATIA on AIX systems have the necessary visibility and control.

HAL cluster visibility: OpenLM is one of the few management tools that can monitor the complex configuration of the LUM HAL Triad, providing accurate, unified usage data across the entire cluster.
Denial and borrowing control: Tracking denials and borrowed licenses gives administrators a complete picture of demand and consumption, preventing downtime and managing compliance for remote users.
Cost allocation: The full support for License Usage Billing allows IT to charge projects or departments for the precise time they consume LUM-managed software, ensuring financial accountability.
Unified SAM: OpenLM supports LUM alongside over 70 other license managers, centralizing all your technical software monitoring in one platform.