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Knowledge base Updated: February 5, 2026

IBM LinuxONE Product Family: Breakthrough Mainframe

Discover the IBM LinuxONE product family, breakthrough mainframe solutions. Learn how these systems can increase performance, security, and scalability.

IBM LinuxONE is an advanced mainframe product family that combines unparalleled processing capabilities, security, and energy efficiency. Thanks to innovative technologies such as on-chip AI inference and quantum-safe technologies, IBM LinuxONE products push the boundaries of possibilities for enterprises worldwide.

  • Support for Modern Workloads IBM LinuxONE products are designed to handle modern workloads such as AI and machine learning. Thanks to built-in hardware accelerators, IBM LinuxONE products enable fast and efficient processing of these advanced workloads.

  • Confidential Computing IBM LinuxONE products offer confidential computing features that provide the highest level of security for enterprise data and operations. With these features, enterprises can safely process and store their most sensitive data.

  • Open Hybrid Clouds IBM LinuxONE products are compatible with open hybrid clouds, enabling enterprises to flexibly and efficiently manage their IT resources.

  • Resilience IBM LinuxONE products offer high availability and reliability, meaning enterprises can rely on IBM LinuxONE products to run their most important operations without worrying about downtime.

  • Energy Efficiency IBM LinuxONE products are designed with energy efficiency in mind. Through the ability to consolidate servers and modernize databases, IBM LinuxONE products help enterprises reduce energy costs and decrease their carbon footprint.

  • Quantum-Safe Cryptography IBM LinuxONE products introduce quantum-safe technologies that are first of their kind in the industry. These innovative technologies are designed to provide protection against potential quantum threats that may appear in the future.

  • Simplified Compliance IBM LinuxONE products help simplify compliance-related processes, making it easier for enterprises to meet regulatory requirements.

IBM LinuxONE nflo

In summary, the IBM LinuxONE product family is the future of mainframe technology. Thanks to advanced features such as support for modern workloads, on-chip AI inference, and quantum-safe technologies, IBM LinuxONE products are able to meet the demands of the most demanding enterprises. Additionally, thanks to their energy efficiency and reliability, IBM LinuxONE products are an ideal solution for enterprises looking not only for advanced technology but also for efficiency and reliability.

IBM LinuxONE Emperor 4 and IBM LinuxONE Rockhopper 4 are two mainframe models offered by IBM that, despite having many common features, are designed to handle different workloads and have different specifications.

IBM LinuxONE Emperor 4

Emperor 4 is the largest and most advanced system in the LinuxONE product family. It is a tower-type system built within a standard 19-inch rack. Emperor 4 is ideal for large enterprises and complex workloads that require the highest performance and security.

Unique features of Emperor 4 include:

  • Advanced sustainability features: Emperor 4 has sustainability features that help reduce greenhouse gas emissions and costs.

  • Support for numerous workloads: Emperor 4 supports many workloads, including data handling, core banking, and cloud applications.

  • Advanced hardware features: Emperor 4 has built-in hardware accelerators that enable fast and efficient processing of advanced workloads.

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IBM LinuxONE Rockhopper 4

On the other hand, Rockhopper 4 is a smaller and more compact model designed to handle modern workloads such as AI and machine learning. Rockhopper 4 can be deployed in one of two ways – either in a single frame (IBM rack version) or in a standard data center server. Rockhopper 4 is ideal for enterprises that need advanced features but have limited space or budget.

Unique features of Rockhopper 4 include:

  • Advanced hardware features: Rockhopper 4 has built-in hardware accelerators that enable fast and efficient processing of advanced workloads.

  • Redundancy and fault tolerance: Rockhopper 4 has built-in redundancy and fault tolerance features, such as hot-swappable components, RAID-style DIMM memory, redundant power supplies and cooling systems, dynamic partitioning, live guest migration, and concurrent maintenance.

  • Support for Ubuntu 22.04: Rockhopper 4 is fully supported by Ubuntu 22.04, allowing users to take advantage of the latest features and updates of this popular operating system.

In summary, both IBM LinuxONE Emperor 4 and IBM LinuxONE Rockhopper 4 offer advanced features and security characteristic of the IBM LinuxONE product family. The choice between them depends mainly on the specific requirements and constraints of the enterprise.

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