Support high availability and efficient server communications with this clustering technology
Parallel Sysplex is a clustering technology which allows you to operate multiple copies of a z/OS as a single system image. Images can be added or removed to the cluster as needed, while applications continue to run. Operating systems participating in a Parallel Sysplex can span multiple servers and applications and data can be shared across systems. This technology can manage multiple systems and resources as a single system from a single point of control.
A Parallel Sysplex is designed to achieve high scalability, performance and availability. It eliminates “single points of failure” from the hardware and operating system – as well as from the middleware and application software.
The new IBM z15, which uses this technology, is designed to deliver up to 99.99999%* availability.
“ We’ve seen SAP application performance increase by up to a factor of two for some of our databases since migrating the underlying databases to IBM Z. We’ve had positive feedback from clients that many key applications are running faster. ”
— Axel Herzberg, Manager System Z Infrastructure, Dataport
Use this guide for achieving near-continuous application availability.
Configure your Sysplex infrastructure for high availability in Parallel Sysplex.
Get tips on design, implementation, and management for Parallel Sysplex.
Explore Coupling Facility technology alternatives.
Learn about CPC support for coupling facility code levels.
See how CF Duplexing provides the ultimate in resiliency for Coupling Facility resources.
See the options available for IBM Z within the datacenter and beyond.
Learn about this multi-site application availability solution for disaster recovery.
Reduce the impact of planned or unplanned downtime.
Try the CFSizer for alternate sizing techniques.
Make the most of your IBM Z investment.
*99.99999% disclaimer: Internal data based on measurements and projections was used in calculating the expected value. IBM z15 servers must be configured in a Parallel Sysplex using z/OS 2.3 or above; GDPS management of data and middleware recovery across Metro distance systems and storage, including GDPS Metro Multi-site Workload and GDPS Continuous Availability; and DS888X with IBM HyperSwap. Necessary resiliency technology must be enabled, such as System Managed CF Structure Duplexing, Sysplex failure management and Capacity Provisioning Manager. Other configurations may provide different availability characteristics.