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Parallel Sysplex Concepts & Facilities
- Categories:
- Infrastructure and Networking Software and DevOps
- Code:
- TPPSX1
Overview
Prerequisites
Familiarity with z/OS structure, concepts, operations and workload.What's included
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Learning outcomes
- explain the reasons for the introduction of the parallel sysplex concept
- explain the business implications of the parallel sysplex
- describe the XCF function for connecting the systems
- explain how data sharing works
- describe the management of a sysplex
- explain how to exploit the benefits of the parallel sysplex.
Course outline
What is sysplex?; Not a new concept; So what's new?; 'Before' and 'after' sysplex; XCF sysplex requirements; Components of the XCF sysplex; Server Time Protocol; Clock synchronization techniques; XCF sysplex definitions; XCF sysplex services; The parallel sysplex; The parallel sysplex concept; Signalling and Status Monitoring services; Group services; Couple Data Sets; XES availability with SFM.
Data SharingThe Coupling Facility (CF); What parallel sysplex adds to the picture; Cross-system Extended Services (XES); Different types of multi-system data sharing; Parallel sysplex data sharing; The PLEXCFG parameter; Program-to-program communication with parallel sysplex.
Sysplex Installation & IPLSysplex installation planning; Determine system names; Examples of setting system names; Determine overall sysplex configuration; The sysplex name; Couple Data Sets; The sysplex Couple Data Set; The parallel sysplex Couple Data Sets; Example of the formatting utility; Output from the formatting utility; Alternate Couple Data Sets; Sysplex Couple Data Set considerations; Determine detection intervals; Determine transport classes; Transport class attributes; Determine signalling paths; LOCAL sysplex messages; Sysplex group names and members; The CFRM policy; CFRM policy definition; Planning CFRM - identification and structure size; XES Structure Services; XES Structure Services; XES Assembler macros; Selecting a CF for a structure; Updating CFRM; The SFM policy; XCFPOLxx for PR/SM; CLOCKxx.
Exploiting SysplexParallel sysplex exploiters; Old functions, new techniques - system software & database systems; The 'real' parallel sysplex...?; Workload distribution - not a new concept; Workload distribution - exploiters; WLM and dynamic networking; VSAM Record Level Sharing (RLS); RACF and sysplex; Sysplex-wide DAE; MVS System Console Processing (MCS); Defining MCS consoles; MCS message processing - sysplex; MCS message processing - sysplex; Automatic Tape Switching (ATS); Global Resource Serialization (GRS); GRS Fully Connected Complex and sysplex; GRS star; GRS star setup definitions; Star configuration RNL management; Sysplex-related JES features; The JESXCF facility; Communication via JESXCF; VTAM exploitation; Generic Resources requirements; CICS exploitation; TSO generic resources; Batch in a parallel sysplex with WLM; The solution - WLM managed batch; What WMB does not do... ; What WMB manages; DB2 exploitation; IMS exploitation; TSO/E and SYS1.BRODCAST; MVS System Logger; System Logger overview.
Sysplex Management & OperationsParallel Sysplex initialisation problems; Sysplex operational problems; Sysplex Timer problems; Couple Data Set problems; Abend X'00C'; Loss of a system in a sysplex; Planning for sysplex failures; XES availability with SFM; The SFM policy; SFM policy parameters; Creating an SFM policy; Automatic Restart Manager (ARM); Automatic Restart Manager objectives; IPL of a sysplex; The SETXCF command; SETXCF command examples; The VARY XCF command.
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