IBM i

For Power Systems (including AS/400, iSeries, and System i)


The IBM i operating system has flexible licensing options to meet your specific business needs.

Small and mid-sized systems

For small and mid-sized systems, the i operating system has processor and user entitlements. A processor entitlement is needed for each processor running the i operating system. A user entitlement is needed for each concurrent user that is authenticating with the i operating system. A base number of user entitlements are included with the express offerings and additional users entitlements can be per purchased in blocks of 5 or 10 users depending on the server model. In addition, Unlimited Users, External Access and Unlimited Collaboration Users options are available.

A new tool is available to be downloaded to your server to estimate the number of i operating system user entitlements required. The documentation and save file, contained in a zipped file, can be downloaded and installed on your system.

Large systems

For large systems, the i operating system has processor entitlements. A processor entitlement is needed for each processor running the i operating system. In addition, for these models, customers have the option to purchase i operating system Application Server entitlements. The Application Server entitlement provides an entitlement for the i operating system without a entitlement for DB2. Customers who wish to deploy applications which do not require DB2 will find the i operating system Application Server license to be a more affordable option for deploying these applications.

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Browse Power Systems

Next generation applications for big data and analytics and cognitive computing are providing unprecedented insights into opportunities, threats and efficiencies. IBM Power Systems is at the forefront of delivering solutions to gain faster insights from analyzing both structured information and unstructured big data. With the secure, flexible and open platform of IBM Power Systems plus solutions and software, organizations can outpace their competitors by delivering faster services, providing differentiated offerings and turning operational cost into investment opportunity.

IBM Power Systems hardware is at the heart of enabling major business and industry transformations fueled by the explosive growth of big data and analytics. Power Systems help organizations drive faster business insights with industry leading performance, scalability and virtualization flexibility.

IBM Power Systems deliver flexibility and choice of operating systems to enable your business to support the next generation applications for big data and analytics and cognitive computing that are transforming how organizations work today. Whether running 1, 2, or all 3 - coupled with PowerVM, they maximize the benefit of Power Systems in your business.

IBM's integrated approach to developing Systems and Systems Software stacks together delivers a platform that supports next generation applications for big data and analytics and cognitive computing on an open platform for choice while providing maximum utilization, availability, and flexibility to help you deliver new advantages to your business.

IBM and IBM Business Partner solutions exploit key benefits in IBM Power Systems’ unique design combined with systems software to provide support for next generation applications for big data and analytics and cognitive computing to providing unprecedented insights into opportunities, threats and efficiencies to your organization.


Over the last five years thousands of clients have migrated to IBM Power Systems. Learn how Power Systems has helped them support next generation applications for big data and analytics and cognitive computing on an open platform for choice while improving business performance, reducing risk, and establishing a platform for growth.

IBM i 7.1

The next step for efficient, resilient business processing

Documentation