The enterprise Linux® operating system offers a solid foundation for your hybrid cloud IT infrastructure. Workloads running on Linux on IBM Z inherit the reliability, scalability and security of the IBM zSystems™ platform. Consolidate your workloads onto Linux on IBM Z to share resources, reduce costs and improve performance and efficiency.



A single IBM z16™ multi frame can do the work of up to 2000 x86 cores.¹


Run up to 19 billion fully encrypted transactions per day and manage data privacy by policy.


Reduce latency by 4.7x and improve throughput with co-location of Linux and other workloads.

Linux server platforms

Enterprise server with Linux

Gain new insights plus speed, resilience and compliance with IBM z16 for Linux workloads, benefitting your hybrid cloud approach.

Linux-optimized server platform

Sustainability, scalability, security and superior performance for your data-serving needs.

Linux server virtualization

LPAR virtualization

Partition a physical server into logical partitions (LPARs) with protection certified to EAL5+.

IBM hypervisor

Host thousands of virtual machines on a single system with scalability, system management and performance.

Open hypervisor

Create and manage virtual machines using familiar tools with the open source KVM hypervisor.

Linux operating system software

Linux-certified tested platforms

Get information on certified and IBM-tested Linux platforms from our distribution partners.

Product documentation

See the latest technical information and guidance for Linux on IBM Z and IBM LinuxONE.

Validated open-source software

Keep up-to-date on open-source packages that have been ported and/or validated by IBM.

Hybrid cloud software

Containers and Kubernetes

Build and modernize applications and deploy them anywhere – aligned to the needs of your customers.


Simplify workload management and integrate seamlessly with hybrid cloud via OpenStack-compatible APIs.

Experience hybrid cloud

Deliver the hybrid cloud experience by building and modernizing faster across any environment.

z/OS Dev and Test on Linux

Build mainframe applications, test code and environment changes before implementing them in production.

Cyber resiliency software

Clustering technologies for resiliency

Support replication, high availability and disaster recovery at any distance with unified control.

Storage software for resiliency

Manage data at scale and perform archive and analytics in place without bottlenecks.

Server relocation for availability

Move a Linux guest from one z/VM system to another within a Single System Image cluster.


Linux distributions

IBM zSystems enterprise servers can run a variety of Linux distributions with a common experience.

Dedicated Linux processor

Learn about the dedicated processor for Linux workloads on IBM zSystems.

IBM training for Linux

Find out about the latest Linux and open source training courses from IBM.

Infrastructure and software services

Our technical consultants can help you design and implement your solutions.

What is open source software?

Discover the advantages, history and latest trends for open source software.

Next steps



¹ IBM internal tests show that when running WebSphere and Db2 workloads, IBM z16 multi frame requires 16 times fewer cores than the compared x86 servers. If you scale this up to a complete IT solution this means when running this workload, the IBM z16 Max 125 would be doing the work of about 2000 cores of the compared x86 servers.

DISCLAIMER: This is an IBM internal study designed to replicate a typical IBM customer workload usage in the marketplace. Results may vary. The core consolidation study targeted comparison of the following servers: IBM Machine Type 3931 Max 125 system consists of three CPC drawers containing 125 configurable processor units (IFLs) and two I/O drawers to support both network and external storage. Lenovo ThinkSystem SR650 (2U) with two 2nd Gen Intel® Xeon® Platinum processors 2.1 GHz, 16 cores per CPU. Both solutions had access to the same storage array. The workloads consisted of a transactional application running on WebSphere Application Server and IBM Db2 simulating core online banking functions. The actual test results were extrapolated to the stated above x86 servers using IDC QPI metrics and IBM sizing methodology using the following assumptions on a typical IT environment of a banking client using x86 servers. The production IT environment has 16 x86 servers running at 50% average utilization. There are 48 x86 servers in the non-production IT environments: development (4 environments with 2 servers each, 8 servers total), development test environment (4 servers), system integration test environment (8 servers), performance test environment (16 servers), user acceptance test environment (4 servers), production fix test environment (8 servers). A typical average CPU utilization is 7% across all non-production environments. An equivalent IBM Machine Type 3931 solution requires a single Max 125 server running at 85% average utilization across all IT environments separated using LPAR technology.