Boost server communications with clustering technology
Faster recovery with no extra cost
Parallel Sysplex® is an IBM Z® feature that links up to 32 z/OS® systems into one logical, high-performance computing platform. It lets you run and manage multiple z/OS instances as a single system, enabling centralized control, improved availability and seamless workload sharing.
Delivers up to 99.99999%¹ availability by eliminating single points of failure—ensuring continuous and reliable service
Maximizes system performance by automatically distributing workloads and adjusting for system capacity in real time
Allows applications to access all server assets seamlessly without changing data-sharing settings, improving efficiency and scalability
Reduces software costs through Parallel Sysplex license charging, which uses shared capacity and machine service units
Features
Restarts critical subsystems automatically on the same or alternative system to maintain application continuity
Provides high-speed caching, locking and list processing for fast, coordinated data sharing across systems
Supports multisite clustering with data mirroring to help ensure high availability and rapid disaster recovery
Synchronizes time across all systems and coupling facilities for consistent operations and data accuracy
Detects failures and applies automated recovery policies to quickly isolate and remove failed components
Dynamically balances workloads by allocating resources based on performance goals and system capacity
Enables shared access to files, tape drives, consoles and catalogs—improving hardware use
Distributes middleware workloads across systems to eliminate single points of failure and boost resilience
Resources
Explore coupling facility technology options and alternatives.
Take advantage of the list of CF structures and their function.
Discover all about CPC support for coupling facility code levels.
Learn about the mechanism for duplexing CF structure data.
Footnotes
¹ Expected value calculated on internal measurements and projections database. IBM Z servers must be configured in a Parallel Sysplex with z/OS 2.3 or above; GDPS data management and middleware recovery across Metro distance systems and storage and DS888X with IBM HyperSwap. Other resiliency technology and configurations might be needed.