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If you are a Systems Programmer working in a z/OS JES2 environment, it is vitally important that you have a thorough understanding of IBM's Job Entry Subsystem 2 (JES2).<br>This course describes and explains what functions there are in JES2, and teaches how to set up a JES2 system in order to fully exploit the features and capabilities of the product.<br><br>This course is also available for one-company, on-site presentations and for live presentation over the Internet, via the Virtual Classroom Environment service.

A sound knowledge of z/OS concepts, JCL and utilities.

describe how JES2 works within MVS
control the start and stop processes of JES2
describe the JES2 functions and facilities
set up and install an efficient JES2 system
dynamically change JES2 parameters
customise JES2 to your specific requirements
set up and manage the RJE and NJE environments.

z/OS and JES2 - How They Relate

IPL of the operating system; starting and initiating JES2; starting other functions; stopping JES2 and z/OS.

Starting & Stopping z/OS JES2

Starting and initiating JES2; Starting JES2; JES2 start parameters; Default JES2 start parameters; JES2 Initialisation parameters (JES2PARM); Activating JES2; JES2 cold start; JES2 warm starts; Example of JES2 warm start; Starting other functions; Stopping JES2; Stopping JES2 - 'crash landing'; Accidental crash landing of JES2; Message $HASP095; JES2 termination codes.

z/OS Workload & the Active System

Program execution environments; Batch processing; Started Tasks; Time Sharing Option (TSO); Executing program requirements; Program identification With JCL; All the JCL statements; The most used JCL statements; JES2 and JES3 statements; Relationships between JCL statements; Getting work into the system; Getting a started task into the system; Getting a TSO user into the system; Getting a Batch Job into the system; Batch Job Queues; Job initiation; Step initiation; The job schedule; Reports and listings; Standard reports; Job Log examples; The active system; What is a batch job?; JES2 information in the job stream; A Job's phases; What is a System Task?; What is a TSO logon?.

JES2 Processors & Subsystem Interface

JES2 Job Processing; Input Processor; Converter Processor; Execution Processor; Output Processor; Why the Subsystems Interface (SSI)?; Subsystem Interface; Using SSI; Using the Subsystem Interface; Requesting SS service; Defining subsystems; Control block definitions; What the function IDs represent.

JES2 Installation - Part 1

JES2 installation components; JES2 load modules; JES2 libraries; IBM-supplied basic JCL procedure; Subsystem definition; PROCLIB & INCLUDE; JES2 datasets; Allocating Spool and Checkpoint; Program Properties Table (PPT); Secondary subsystems; Defining Secondary Subsystems.

JES2 Installation - Part 2

JES2 initialization flow; Types of JES2 start; Specifying type of JES2 startup; JES2 start options; Initialization parameter format; JES2PARM; Console statements; Key initialization statements; SPOOLDEF; CKPTDEF; MASDEF; MAS display commands; INITDEF and INITnnn; JOB/STC/TSUCLASS; ESTLNCT; CONDEF; PCEDEF; JES2 Monitor.

Input & Conversion Processors

Processes and Queues; Input processing; Job Queue; Job Queue Element (JQE); Job Control Table (JCT); Input Output Table (IOT); Peripheral Data Set Definition Block (PDDB); Input Processing Control Blocks overview; Controlling input processing; Internal readers; Job characteristics; Conversion process.

Checkpoint & Spool Processing

Checkpointing; Checkpoint layout; Duplex Mode; Dual Mode; Checkpoint recovery; Checkpoint changes; JES2 Spool Management; Spool Volumes (SPOOLDEF); SPOOL fencing; Spool Affinity; Spool Track Groups; Allocating Spool; Spool status; Changing the spool configuration; Spool partitioning; Spool Offload facility; Offload Transmitters/Receivers; Controlling OFFLOAD devices; Controlling Transmitters/Receivers; Offload data set; Specifying the JOB Transmitter/Receiver; Specifying the SYSOUT receiver; Specifying the SYSOUT transmitter; Review tasks.

JES2 Exits

What are JES2 Exits?; Uses for JES2 Exits; IBM-supplied JES2 Exits Points; Defining and controlling Exits; JES2 EXIT initialization; Calling environment; Linkage and Return Codes; Exit coding and macros.

Execution Processor

Executing batch jobs - Initiators; Initiator management; Execution Processor; Executing in z/OS - the address space; Execution - the initiators; Batch Initiators; JES2 and Initiators; Controlling initiators; Jobs in z/OS; Active jobs; DISPLAY active jobs; Cancelling jobs; The $C command; ZAPJOB

Output & Purge Processor

Output processing; Print/Punch processor; Output services; Output group; Demand set-up; Work selection criteria; Controlling output; Define local printers; Define printer globals; Output listings

RJE & NJE

Remote Job Entry (RJE); Network Job Entry; NJE routing; SNA example; Who is in the Network?; Path resistance; Resistance computation.

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JES2 Implementation & Customisation Training Course in Norway

The Nordic country Norway, is in Northern Europe. Known for its stunning natural beauty, including fjords, mountains, and forests, Norway is also famous for its high standard of living and strong social welfare system. Norway's capital and largest city is Oslo. Tromsø, Bergen, Trondheim and Stavanger are the other tourist attracting cities of Norway.

Norway is a constitutional monarchy with King Harald V as the head of state. The country has a population of 5,425,270 as of January 2022. Norway is a relatively small country and has a relatively low population density, with much of its land area covered by forests, mountains, and fjords. Despite its small size, Norway is known for its rich cultural heritage, strong economy, and stunning natural beauty, which attracts millions of visitors every year. This Nordic country is also known for its winter sports, such as skiing and snowboarding, and is a popular destination for outdoor enthusiasts.

Norway has a long history of invention and is home to numerous more top-tier tech firms and research facilities, such as; Kongsberg Gruppen, Telenor, Atea, Evry and Gjensidige Forsikring.

Due to the country's high latitude, there are large seasonal variations in daylight. From late May to late July, the sun never completely descends beneath the horizon. Which attracts many tourists around the world to see the "Land of the Midnight Sun". Tourists mainly visit Sognefjord, Norway's Largest Fjord, Pulpit Rock, one of the most photographed sites in Norway and of course the capital; Oslo.

Oslo is considered the business center of Norway. It is the country's largest city and the capital of Norway. The city is home to many of Norway's largest and most important companies, as well as several international organizations and research institutions. Additionally, the city is a popular tourist destination, known for its scenic location on the Oslo Fjord, its many museums and cultural attractions, and its vibrant nightlife and dining scene. Some of the most popular museums in Oslo are The Norwegian Museum of Cultural History, The Nobel Peace Center, The National Museum of Art, Architecture, and Design, The Munch Museum and The Vigeland Museum.

JES2 Implementation & Customisation Training in Norway

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JES2 Implementation & Customisation Training in Norway

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