September 13, 2022 By Marcel Mitran 3 min read

We are excited to announce the arrival of the IBM LinuxONE Emperor 4.

IT leaders have had their hands full recently with digital transformation, cyber threats and hybrid cloud discussions, and sustainability has joined the conversation as a priority for businesses.

Sustainability will transform business, but according to an IBM CEO study, only 23% of CEOs report that they are implementing sustainability strategies. The challenge is to make sustainability a true business driver while delivering measurable ROI. Technology is a critical enabler to achieve these objectives, making it possible to put beliefs into action through goals, commitments and solutions.

Green IT can provide a solution

A major part of the sustainability conversation, especially related to IT, is energy consumption. Energy-intensive data centers can account for a large portion of an organization’s energy use. Many clients are looking for increased efficiency to help support their sustainability and ESG goals.

Today, IBM announced the LinuxONE Emperor 4, designed to deliver scalability to support thousands of workloads in the footprint of a single system [1]. The results of an internal study showed that consolidating Linux workloads on five IBM LinuxONE Emperor 4 systems — instead of running them on comparible x86 servers under similar conditions — can reduce energy consumption by 75%, data center floor space by 50% and the CO2e footprint by over 850 metric tons annually. [2]

IBM’s continued environmental commitment

IBM LinuxONE is part of IBM’s portfolio of sustainability technologies and our long history of environmental commitment. IBM has had a track record of setting environmental commitments for over 50 years and continues to advocate for the environment through research, advocacy and coalitions.

One example of IBM’s environmental commitment is the IBM GARS product recycling program, which processed more than 18,000 metric tons (MT) of end-of-life products and product waste in 2021, with 97.7% reused, resold or sent for recycling.

LinuxONE is a scale-out-on-scale-up system enabling workloads to run at sustained high density while maintaining isolation. LinuxONE Emperor 4 can help clients optimize data centers to reach their sustainability goals. IBM LinuxONE Emperor 4 is positioned to address client challenges related to data centers, especially related to scale, security and sustainability.  

Register for IBM zDay

Register for IBM zDay, a no-cost virtual conference on September 15, 2022, to learn more about IBM LinuxONE through a dedicated track of sessions that showcase our next generation of innovation.


[1] DISCLAIMER: Performance result is extrapolated from IBM internal tests running in an IBM LinuxONE Emperor 4LPAR with 24 dedicated cores, 1536 GB memory and FS9200 storage NGINX pods on Red Hat OpenShift Container Platform (RHOCP) 4.10 running on a RHEL 8.5 KVM host. 64 RHOCP Compute nodes with 230 NGINX pods were running in parallel. The KVM guests with RHOCP Compute nodes were configured with 2 vCPUs and 16 GB memory each. The KVM guests with RHOCP Management nodes were configured with 16 vCPUs and 128 GB memory each. Results may vary.

[2] 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.

[3] IBM Impact, our corporate ESG strategy.

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