We're flexible

IBM Z mainframes run operating systems including z/OS®, z/VM®, z/VSE®, Linux on IBM Z®, and z/TPF. In fact, it is common for multiple operating systems to run on a single mainframe. Each operating system is a sophisticated product with unique characteristics designed to make the best use of your mainframe investment.

Explore the mainframe operating systems

z/OS

z/OS is designed to keep applications and data available, system resources secure, server utilization high, and programming environments agile. It maintains compatibility for existing applications and runs Linux on IBM Z containers on premises and in hybrid multiclouds.

Linux on Z

IBM Z provides an enterprise Linux platform for your Linux and container workloads on premises and in hybrid multiclouds. Open source software benefit from the security, efficiency and performance of IBM Z. Red Hat® OpenShift® simplifies cloud native development.

z/VM

This leading hypervisor for the mainframe can run thousands of Linux on Z virtual machines on one system – and can also run z/OS, z/VSE and z/TPF. IBM z/VM’s reliability, performance, system management and security offer a strong foundation for all of your applications.

z/VSE

IBM z/VSE is an easy-to-manage IBM mainframe operating system widely used for reliable and secure online transactions and batch workloads. It can be integrated into a hybrid IT environment with z/VSE Connectors and enhanced with new workloads in a colocated Linux on Z environment.

z/TPF

The z/Transaction Processing Facility (z/TPF) is a special-purpose mainframe operating system used to process high transaction volumes, such as credit card transactions and airline reservations. It handles near real-time transactions with the quality service of the IBM Z mainframe.

Hear from customers

The ability to run our legacy applications and our modern, specialist ones using both the IBM z/OS and Linux on Z is super convenient and gives us a high degree of IT management flexibility.

Justin Randall, Technical Services Supervisor, NCFB

You may also be interested in

KVM distribution

KVM is offered through our Linux distribution partners to help simplify ordering, delivering and installing KVM for our customers.

New software pricing

New enterprise consumption and enterprise capacity solutions offer flexible deployment options.

Upgrade to save

See how you can achieve up to 30 percent savings by upgrading to IBM z15.

The cost of downtime

Understand the reality of downtime in this survey of 100 IT directors. 

The value

Organizations lowered operations cost by 19%, saving USD $2M.

Emid

Learn why Z was the ideal for this bank’s journey to cloud.

Allied Irish Bank

Learn how AIB relies on IBM Z to underpin its mission-critical systems.

More case studies

See how customers in your industry are succeeding with IBM Z.

OpenShift® webinar

See what’s possible when you combine this container and Kubernetes application platform with IBM Z.

Extending the IBM z15 family

Learn how you can benefit from the data privacy, security and cyber resiliency capabilities of z15.

Stay informed

Attend more webinars and events.

Call us at 1800 3172 782 | Priority code: IBM Z

Visit us:

Visit us: