IBM LinuxONE

IBM LinuxONE is a product brand within IBM's server portfolio: a family of enterprise-class systems that run Linux exclusively on IBM's z/Architecture mainframe technology. IBM introduced the LinuxONE name in 2015, positioning it as a dedicated line for organizations that want mainframe-grade reliability, throughput and security while standardizing on open-source Linux rather than z/OS. The brand sits alongside IBM Z in IBM Systems and is aimed at data centers running large Linux estates — databases, cloud-native workloads, containers, and security-sensitive applications. LinuxONE systems are sold as hardware models (such as the Emperor and Rockhopper entries in each generation) with accompanying software and services, including IBM's LinuxONE virtualization, cloud and security offerings. IBM has repeatedly refreshed the line in step with new IBM Z generations, emphasizing consolidation of many x86 servers onto a single LinuxONE frame, energy efficiency, pervasive encryption, and support for popular Linux distributions and open-source ecosystems. The brand's market positioning is premium and enterprise-focused: it targets banks, governments, healthcare, and other regulated or high-volume transaction environments where uptime, cryptographic protection and scale matter more than low unit cost. IBM markets LinuxONE through its global sales force and partner ecosystem rather than retail channels, and the brand is closely tied to IBM's broader hybrid cloud and open-source strategy. Because LinuxONE is a product line rather than a separately incorporated company, its ownership, financial reporting and leadership are those of IBM itself.

IBM introduced the LinuxONE brand in 2015 as a dedicated family of Linux-only enterprise servers derived from its mainframe line. The first generation was announced alongside a commitment to open-source collaboration, with IBM positioning LinuxONE as a way for customers to run large-scale Linux workloads on z/Architecture hardware with mainframe reliability and security features. The launch included two models, Emperor (the high-end system) and Rockhopper (a smaller, entry-level system), a naming convention IBM has carried forward across generations. Subsequent generations followed IBM Z hardware refreshes. IBM updated LinuxONE with new processors, more capacity and enhanced encryption capabilities, and expanded the accompanying software stack for virtualization, containers and hybrid cloud management. IBM also promoted LinuxONE through partnerships with Linux distributors and open-source communities, and through programs aimed at consolidating x86 server sprawl onto fewer, larger systems. In the 2020s IBM continued to market LinuxONE as part of its hybrid cloud and AI strategy, emphasizing sustainability (energy efficiency and data-center footprint reduction), pervasive encryption, and support for cloud-native tooling. The brand remains an active IBM Systems product line, sold globally to enterprises, governments and regulated industries.

• 2022

  IBM introduces LinuxONE Emperor 4 and Rockhopper 4, emphasizing energy efficiency and sustainability.

• 2018

  IBM refreshes LinuxONE alongside a new IBM Z generation, adding capacity and security enhancements.

• 2015

  IBM launches the LinuxONE brand with the first-generation Emperor and Rockhopper systems.

Premium enterprise Linux server platform for consolidation, security and scale, sold to large organizations through IBM's direct and partner channels.

• LinuxONE Emperor

  High-end LinuxONE model for large-scale enterprise Linux workloads.

• LinuxONE Rockhopper

  Smaller, entry-level LinuxONE model for organizations starting with the platform.

• Unconfirmed

  Bai Shang Digital launches SpeedyOne integrated trading solution with IBM LinuxONE[2]百商数位推出整合IBM LinuxONE的SpeedyOne软硬一体化交易方案ithome.com.tw

  Bai Shang Digital Technology launched SpeedyOne, a software-hardware integrated trading solution that integrates its Speedy low-latency trading system with IBM's LinuxONE enterprise platform, enabling centralized deployment of trading subsystems on a single physical platform for securities and professional trading institutions in Taiwan.

• 2021.04.28

  IBM announces LinuxONE III Express[3]IBM发布LinuxONE III Expressserver.zhiding.cn

  IBM announced the LinuxONE III Express, an entry-level LinuxONE hardware platform for startups, business partners and ISVs, with launch planned for May 25.

Read more

1. 1IBM LinuxONE product pageibm.com
2. 2百商数位推出整合IBM LinuxONE的SpeedyOne软硬一体化交易方案ithome.com.tw
3. 3IBM发布LinuxONE III Expressserver.zhiding.cn