2022 SEAL Sustainable Product Award winner, for creating impactful and "purpose-built" products for the future


Build a sustainable infrastructure

IBM® LinuxONE Emperor 4 helps organizations that care about achieving sustainability goals reduce energy costs and carbon footprint with a secure, high-performance server platform for data-intensive workloads.

Introducing IBM LinuxONE Emperor 4

Discover IBM LinuxONE Emperor 4 (01:07)


Energy efficiency

Reduce energy costs and carbon footprint by consolidating servers and modernizing databases.

Confidential computing

Isolate workloads and help protect them from internal and external threats using a confidential computing Trusted Execution Environment (TEE).


Quantum-safe cryptography

Protect data today and in the future with end-to-end encryption that extends to quantum-safe technologies built into the system.

Open hybrid cloud

Move to an open hybrid cloud platform on your choice of infrastructure.

Flexible capacity

Meet fluctuating demands with a system that constantly rebalances resources and enables temporary or permanent capacity on demand.


Achieve 99.99999% availability for your mission-critical workloads, equivalent to about three seconds of downtime per year.²

Simplified compliance

Simplify and automate compliance tasks with the IBM Security and Compliance Center.

On-chip AI acceleration

Deliver insights faster at lower TCOs with the IBM® Telum processor. Build and train AI models with familiar open-source tools.

Related products


On-prem server that delivers encryption everywhere, cloud-native development and cyber resilience.

IBM Cloud® Hyper Protect Digital Asset Platform

Build on premises using IBM Cloud® Hyper Protect Virtual Servers powered by LinuxONE.

IBM Cloud® LinuxONE Virtual Servers for Virtual Private Cloud

For the first time, LinuxONE is available as a choice in the public cloud.

Get started

Discover how IBM LinuxONE can jumpstart your business growth while saving the planet.


¹ Consolidating Linux workloads on 5 IBM LinuxONE Emperor 4 systems instead of running them on compared x86 servers under similar conditions can reduce energy consumption by 75%, space by 50%, and the CO2e footprint by over 850 metric tons annually.

DISCLAIMER: Compared 5 IBM Machine Type 3931 Max 125 model consists of three CPC drawers containing 125 configurable cores (CPs, zIIPs, or IFLs) and two I/O drawers to support both network and external storage versus 192 x86 systems with a total of 10364 cores. IBM Machine Type 3931 power consumption was based on inputs to the IBM Machine Type 3931 IBM Power Estimation Tool for a memo configuration. x86 power consumption was based on March 2022 IDC QPI power values for 7 Cascade Lake and 5 Ice Lake server models, with 32 to 112 cores per server. All compared x86 servers were 2 or 4 socket servers. IBM Z and x86 are running 24x7x365 with production and non-production workloads. Savings assumes a Power Usage Effectiveness (PUE) ratio of 1.57 to calculate additional power for data center cooling. PUE is based on Uptime Institute 2021 Global Data Center Survey (https://uptimeinstitute.com/about-ui/press-releases/uptime-institute-11th-annual-global-data-center-survey). CO2e and other equivalencies that are based on the EPA GHG calculator (https://www.epa.gov/energy/greenhouse-gas-equivalencies-calculator) use U.S. National weighted averages. Results may vary based on client-specific usage and location.

² IBM internal data based on measurements and projections was used in calculating the expected value. Necessary components include IBM z16; IBM z/VM V7.2 systems collected in a Single System Image, each running RHOCP 4.10 or above; IBM Operations Manager; GDPS 4.5 for management of data recovery and virtual machine recovery across metro distance systems and storage, including Metro Multi-site workload and GDPS Global; and IBM DS8000 series storage with IBM HyperSwap. A MongoDB v4.2 workload was used. Necessary resiliency technology must be enabled, including z/VM Single System Image clustering, GDPS xDR Proxy for z/VM, and Red Hat OpenShift Data Foundation (ODF) 4.10 for management of local storage devices. Application- induced outages are not included in the above measurements. Other configurations (hardware or software) may provide different availability characteristics.