Overview
Prerequisites
Delegates will learn how to
- identify the principal components of IBM z Systems
- describe how data is stored, the different data codes and types, and the devices used
- explain the concepts of operating systems
- use basic TSO commands
- use and customise ISPF panel structures
- browse and edit datasets
- customise ISPF edit profiles
- use advanced edit functions
- submit and manage batch jobs
- use the ISPF utilities such as copy and list
- use search facilities
- state the purpose of each z/OS job control statement
- code JCL statements to access disk and cartridge files
- describe and use the commonly used parameters
- correct syntax errors in JCL statements
- code in-stream procedures and override, nullify and add parameters
- appreciate the implications of SMS when using z/OS JCL.
Outline
Origins; Types of computers; General purpose; Scientific; Scientific AND general purpose?; The PC; The Graphical User Interface (GUI); The application development backlog; The Local Area Network (LAN); Who runs the distributed data centre?; Total Cost of Ownership (TCO); Today's real world; What is a mainframe?; What can it do?; Hardware and software; Types of computing; Batch; Batch processing today; Interactive; On-line; Real time.
Enterprise Computing HardwareEnterprise computing hardware; An IBM z Systems data centre and its contents; The processor complex; Parallel sysplex; Channels; Controllers; I/O units; Addressing; Local and remote; Disk storage; Old technology; Storing data on a traditional disk; The cylinder concept; Sectors; Cache storage; RAID - a newer technology; Disk Mirroring (RAID-1); Data Striping (RAID 5/6); Remote Disk copy; Virtual disks; Optical disks; Why magnetic tape?; Reel to reel tape; Cartridges; High performance tapes; Automated Tape Libraries; Virtual Tape Server; Other Input/output peripherals; Terminals, Laser printers, Line printers, Micro film and microfiche; Magnetic Ink Character Recognition; Optical Character Recognition; Bar codes; Communications equipment.
z Systems Software and ProgramsWhat is software?; Types of software; System software; Exits; Application software; What does a program comprise?; Main module; Subroutines and procedures; Functions; Data; EBCDIC; ASCII; Building a program; Programming languages; Executing a program.
Practical OperationsWho runs the IT environment ?: Operators, Help Desk Operatives, Security Administrators, Systems Programmers, Storage Administrators, Network Analysts, Application Developers/Support' Database Administrators.
z/OS Operating SystemThe z/OS operating system - MVS; Some important definitions; Address spaces; Common area; Private area; Main components of MVS; MVS processing environments; On-line; TSO; z/OS communications server; VTAM; TCP/IP; JES: JES2, JES3; Transaction Servers: CICS, IMS; Databases: DB2, IMS; UNIX System Services; WebSphere Application Server.
Introduction to TSOWhat is TSO; main uses of TSO; using TSO; when the TSO screen fills; logging on to TSO; logging off.
Basic TSO CommandsSEND, LISTBC, LISTALC, HELP and PROFILE commands; command prompting; aborting a TSO command.
Introduction to ISPFWhat is ISPF; the ISPF panels; the pull-down menus; the Primary Option Menu; changing ISPF settings, function settings and log/list defaults; identifying error messages, entering TSO commands from ISPF, exiting from ISPF.
Browsing datasets in ISPFDataset naming rules and conventions; DASD dataset organisation; Partitioned Datasets; Partitioned Dataset Extended; specifying dataset names, PDS member list panel and shortcuts; browsing the data; scrolling; FIND command; finding picture strings; the LOCATE command; splitting the screen.
Basic Edit via ISPFThe editing process; the edit entry panel; member or dataset edit panel; scrolling during edit; edit line commands; manipulating lines; ending an edit session.
The ISPF Edit profileFunction of the Edit profile; displaying the Edit profile; profile options; creating new members; the insert and delete keys; CHANGE command; UNDO command; when you get locked up.
Advanced Edit with ISPFExcluding and re-displaying lines; RESET command; switching between upper and lower case; column boundaries; text entry facilities; tab settings; manipulating data; submitting a batch job; nested edit sessions; saving data; cancelling an edit session.
Basic ISPF utilitiesUtility selection menu; library utility; data set utility; move/copy utility; hardcopy utility; outlist utility.
ISPF Data Set List UtilityDataset list; wildcard characters; dataset list and member list line commands; using a TSO command; SHOWCMD command; VTOC list and information; freeing unused space; repeating commands.
SuperC and Search-ForSuperC utility; SuperCE utility; Search-For utility; Search-ForE utility.
z/OS: Structure and ComponentsMVS background and history; MVS main memory and virtual storage; MVS versions; Address space layout; Common area; Private area; Main components of MVS; MVS processing environments: On-line, TSO, ISPF, Batch; MVS spooling; Other program products and their functions.
Introduction to z/OS JCLBasic job structure; Job stream processing; JCL output; JCL statement types; JCL statement format and coding rules; JES2 control statements; JES3 control statements; JCL error points.
The JOB StatementThe JOB statement overview; Accounting information - positional; Programmer's name - positional; Keyword parameters; Other keyword parameters; Example JOB statements.
The EXEC StatementThe EXEC statement; EXEC format - program; EXEC format - procedure; EXEC keyword parameters; Other EXEC keyword parameters; COND parameter; EVEN or ONLY; Example EXEC statements; EXEC statement summary.
Printing and In-stream DataPrint files & In-stream data; Printing: Examples, DEST, COPIES, DCB; Output statement; OUTPUT statement: Implicit, Explicit, Multiple output; Output statement parameters; Examples; OUTDISP parameter; In-stream data.
The DD StatementThe DD statement; DD parameters: DSN, DISP, UNIT and VOL; SMS considerations; DD statement summary: Existing catalogued data set, Existing non-catalogued data set.
The DD Statement - Working with DatasetsDataset types; Sequential datasets; Partitioned Data Sets; VSAM datasets; BUFNO; Accessing existing datasets; Creating new non-VSAM datasets; Data Control Block parameters; SPACE parameter; Space allocation DSCBs; System Managed Storage: Disk datasets with SMS, Space allocation with SMS. DCB parameters with SMS; Creating VSAM datasets in JCL; Generation datasets; SMS GDG considerations; Stages in creating a generation dataset; Tape datasets; . LABEL parameter; DD statement summary; Creating a new dataset on disk - non-SMS; Creating a new tape dataset.
Further DD ConsiderationsSpecial ddnames; JOBLIB; STEPLIB; Dump datasets; Concatenated datasets; Temporary dataset names; Dummy datasets.
Catalogued ProceduresJCL procedures; In-stream procedures; What a catalogued procedure cannot contain; Cataloguing a procedure; INCLUDE statement; Calling a procedure; Symbolic parameters; Examples of symbolic translation; Default parameters; Resolving symbolic parameters; SET statement; Modifying EXEC statement parameters; Modifying DD parameters; Concatenated datasets; Adding DD statements; Substitution prefixes; Using a standard COBOL compile/link/go procedure.
Conditional JCL StatementsThe general construct; Name field; Relational-expression field; Relational-expression keywords; Comparison operators; Logical operators; NOT operator; Order of priority of operators; Parentheses; THEN and ELSE clauses; Contents of THEN and ELSE clauses; IF/THEN/ELSE/ENDIF and COND.
Common MVS Abend CodesProblem handling; Program abends; Common MVS completion codes.
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