AppliedOnline32 min
Advanced CICS
Beyond the single region: how production CICS is laid out across many regions, how resources are defined, how data survives failures, what threadsafe really means, and how to keep a busy region healthy and find the cause when it is not.
What you will be able to do
- Explain TOR, AOR and FOR roles, MRO and IPIC links, and what CICSPlex SM adds
- Define and install resources with the CSD, CEDA and DFHCSDUP
- Describe backout, emergency restart, threadsafe programs and channels and containers
- Diagnose MXT, short-on-storage and runaway-task problems using the right evidence
Lessons
- Regions, topology and resource definitionsLarge CICS systems are not one region but many, each with a job: some own terminals and connections, some run applications, some own files.
- Recovery, threadsafe and modern interfacesCICS protects data by backing out a failed task's changes and recovering in-flight work after a crash.
- Performance, monitoring and troubleshootingA busy CICS region is limited by how many tasks it may run and how much storage it has.
Track your progress and earn a certificate.
Free account, 15 quiz questions for this subject.