What is a Parallel Sysplex?
IBM® Parallel Sysplex enables you to run multiple copies of 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, to scale out across the capacity of many z/OS images.
Restart critical elements
Automatic Restart Manager recovers and restarts critical subsystems, either on the same system or on a different one.
Coupling Facility technology
Coupling Facility provides high-speed caching, list processing and locking.
GDPS offers disaster recovery and high availability by using a cluster across two or more sites with data mirroring.
Workload balancing and routing helps prevent a single point of failure and adjusts middleware workloads.
Physical resources sharing
Resource sharing enables physical resources such as files, tape drives, consoles and catalogs to be shared.
Server Time Protocol enables servers and coupling facilities to maintain common time synchronization.
Failed Elements removal
Sysplex Failure Manager specifies a policy for failure detection intervals and recovery actions to be automatically initiated.
z/OS Systems Workload Control
z/OS Workload Manager handles workloads via dynamic resource distribution to move workloads to systems with capacity.