Parallel Sysplex
Support high availability and efficient server communications with this clustering technology
Support high availability and efficient server communications with this clustering technology
IBM® Parallel Sysplex enables you to run multiple copies of a z/OS as a single image, so you can manage multiple systems and resources from a single point of control. In a Parallel Sysplex, operating systems can span multiple systems and share their applications and data. Images can be added or removed as needed, while applications continue to run.
Achieve high scalability, performance and availability. IBM Parallel Sysplex eliminates “single points of failure” from the hardware and operating system – as well as from the middleware and application software.
Use this technology with your IBM Z systems to help 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
System Z Infrastructure Manager, Dataport
Server Time Protocol (STP) is required for Parallel Sysplex implementations that span more than one CEC. It is a server-wide facility that is implemented in the Licensed Internal Code (LIC). STP presents a single view of time to Processor Resource/Systems Manager (PR/SM) to maintain time synchronization for multiple servers and Coupling Facilities.
Use this guide for achieving near-continuous application availability.
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.
*99.99999% disclaimer: Internal data based on measurements and projections was used in calculating the expected value. IBM Z 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.