IBM z/OS
A highly secure and scalable operating system for running mission-critical applications
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Release preview of z/OS 3.2

IBM has released a preview of z/OS 3.2, its flagship operating system, featuring new enhancements and day-one support for the newly announced IBM z17®, including advanced hardware-accelerated AI capabilities.

Explore the z/OS 3.2 preview

Optimized platform for enterprise systems

IBM® z/OS® is an operating system (OS) for IBM Z® mainframes, suitable for continuous, high-volume operation with high security and stability.

 Summary of updates for release V3.1 Explore past releases for IBM z/OS
AI-infused

Scale the value of data and drive digital transformation that is powered by AI and intelligent automation.
Cyber resiliency

Protect and thrive with unparalleled security and resilience capabilities with quantum-safe technologies.
Seamless application modernization

Build new applications or modernize existing ones while optimizing and simplifying technology infrastructure.
Multicloud integration

Manage and scale workloads across hybrid and multicloud environments while maintaining high security. 

Featured capabilities

Simplified management: z/OS Management Facility

Improve z/OS programmer productivity with a web-based interface and streamlined, automated tasks.

 Server communications: Parallel Sysplex

Run multiple copies of z/OS as a single image, so you can manage multiple systems and resources from a single point of control.

 Faster recovery: System Recovery Boost

Restore services and recover workloads substantially faster with zero increase in licensing costs.

Upgrade workflows: z/OS Upgrade Workflows

Enable and drive innovative development to support new hybrid cloud and AI business applications.

 Linux integration: z/OS Container Extensions

Integrate popular open source packages, Linux® applications, IBM software and third-party software.

 JSON databases: EzNoSQL for z/OS

Easily create and access JSON databases through a comprehensive set of C-based APIs.

 Simplified data archiving: Transparent cloud tiering

Use serverless data movement and storage cloud communication to simplify data archiving in the cloud.

 Pervasive encryption with IBM Z

Enable extensive encryption of data in-flight and at-rest to safeguard data and achieve compliance.

Supporting capabilities

z/OSMF Ansible® Collection

Orchestrate configuration management, application deployment and provisioning IT tasks on z/OS.

 IBM Z and LinuxONE Container Registry

Download open source, no-cost container images that can run in Linux® and zCX environments of z/OS.

 IBM Z resilience

Rapidly adapt and respond to disruptions or threats and continue operations without significant impact.

Resources

This course covers z/OS basics, datasets and data access methods and operating system environment topics.

This guide covers installing, tailoring and configuring IBM z/OS Container Extensions (zCX) in your own environment.

Understand how hardware and software components interact within a z/OS data set encryption environment.

See the latest enhancements to this fully functioning tape management system for removable media.

Find out how IBM zHyperLink for IBM z/OS makes it easy to accelerate transaction processing for the mainframe.

Discover how hardware and software components interact in a z/OS data set encryption environment.

Learn the basics of IBM z/OS including mainframe concepts, the value of the mainframe and the programs and capabilities of the operating system.

Learn the concepts of z/OS Language Environment—how to customize, program, debug and how to run C, C++, COBOL, PL/I Fortran and assembler apps.

Take the next step

Explore add-ons for IBM z/OS to enhance the capabilities of your operating system.  

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