jcl slides
TRANSCRIPT
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Topic 1. Introduction
Topic Objectives
After attending this topic the student should be able to desire the need ofJCL and to state the different processes in JES
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WHAT IS JCL ?
JOB CONTROL LANGUAGE
L ANGUAGE WE USE TO
C ONTROL THE EXECUTION OF
J OB’S IN THE SYSTEM
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ACCOUNTING
OPERATING SYSTEMPROGRAM ?
PROGRAM 1 - 2 - 3
HARDWARE
DATASETS
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J C L STATEMENT
// JOB
// EXEC
// DD
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JCL STATEMENT HISTORY
DDDD
DDEXEC
JOB
EDIT-EDUCBE05.JOBLIB.CNTL(TESTJOB)-01.00--COLS007078
COMMAND----> SCROLL--> PAGE
00100 // JOB00200 // EXEC00300 // DD00400 // DD00500 // DD
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JES PROCESSORS
SYS1.PROCLIB
INPUT CONVERSION EXECUTION OUTPUTPRINT/ PUNCH
PURGE
SPOOL
INPUTQUEUE
JOBQUEUE
OUTPUTQUEUES
PRINTER
CARD PUNCH
LOCAL READER
INTERNALREADER
RJENJE
RJENJE
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JOB SELECTION
CHECK POINTJOB QUEUE
JOB CLASS14 Z145 C146 Z1078 T2001 A2002 B
MVS JES INIT 1JOBCLASSESA,Z,B,C
INIT 2 INIT 3
JOBCLASSESS,B,A
JOBCLASSESC,Z
SPOOL
CLASS A2001CLASS B2002CLASS C145
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PROGRAM MANAGEMENT - SEARCH SEQUENCE
JOB PACK AREA
JOBLIB - STEPLIB
FIXED LINKPACK AREA(FLPA)
MODIFIED LINKPACK AREA(MLPA)
PAGEABLE LINK PACK AREA(PLPA)
SYS1.LINKLIB(LNKLST xx)
ABEND 806
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Topic 2. Job Control Language
Objectives
Upon completion of this unit the student should be able to :
* Demonstrate an understanding of the functions of specific parameters that can be coded on the JOB,EXEC, and DD statements.* Correct common JCL syntax and usage errors.* State the difference between DD DATA and DD.* Identify valid dataset name.* Code DD statements using specified information.
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MVS / ESA JCL REFERENCE
MVSENERPRISE SYSTEM
ARCHITECT.
JCL
REFERENCE
GC28 - 1654
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JCL PARAMETER FIELD
`//JNAME////STEP1//SYSIN//SYSPRINT
JOB
EXECDDDD
(ACCT-NR,ACCT-INFO), ‘PRG NAME’,NOTIFY=USERIDX THIS IS A CONT.CARDPGM=TESTDSN=(USERIDX.EDUC.CNTL)SYSOUT = A
IBENTIFIER
NAME FIELDOPERATION PARAMETER FIELD
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IDENFIER FIELD
// JCL
// DELIMITER OR JES2 CONTROL STATEMENTS
// COMMENT OR JES3 CONTROL STATEMENTS
COL 1
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NAME FIELD
//TSOIOXXA JOB ………………
//#STEPA EXEC ………………
//INDATA DD……………...
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OPERATION FIELD
// TSOIOXXA JOB …………….
//# STEPA EXEC ……………..
//INDATA DD ………………
//INTEST IF
//LIB JCLLIB
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PARAMETER FIELD
// RUN1 JOB D69A , DOE , MSGCLASS = S
//ST1 EXEC PGM = ADVJCL
//INDD DD DSN = JCL.CLASS,DISP = SHR
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COMMENT FIELD
// ST1 EXEC PGM = ADVJCL STEP1
//INDD DD DSN = JCL.CLASS, IN DATA
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CONTINUATION OF STATEMENTS
POS
1 71
//NAME OPERATION PARAMETER,
// PARAMETER , PARAMETER
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//SYSUT1 DD DSN = BE05MST.MY.DATA,DISP = (NEW,CATLG,CATLG),// DCB=(LRECL=80, BLKSIZE=3120, RECFM=FB) VALID
//SYSUT1 DD DSN=BE05MST.MY.DATA ,DISP=(NEW,CATLG,CATLG), DCB=(LRECL=80,BLKSIZE=3120,RECFM=FB) VALID
//SYSUT1 DD DSN=BE05MST.MY.DATA,DISP=(NEW,CATLG,CATLG) DCB=(LRECL=80,BLKSIZE=3120,RECFM=FB) NOTVALID
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CONTINUATION THE COMMENT FIELD
POS.
1 2 71 72
//ST1 EXEC BJCL THIS STMNT C
// CALLS THE BASIC JCL
//* PROCEDURE
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POSITIONAL PARAMETERS
//NAME OPERATION P1 , P2 , P3 , K1 = A
//NAME OPERATION , P2 , K1 = A
//NAME OPERATION P1 , K1 = A , K2 = B
//NAME OPERATION K1 = A , K3 = C , K2 = B
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KEYWORD PARAMETERS
//NAME OPERATION K1 = A , K2 = B , K3 = C
//NAME OPERATION P1 , K2 = B
//NAME OPERATION , P2 , K3 = C , K1 = A
//NAME OPERATION P1 , P2
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POSITIONAL AND KEYWORD SUBPARAMETERS
DISP = OLD
DISP = (NEW , KEEP , KEEP )
DISP = ( , KEEP , KEEP)
DCB = (RECFM = FB , LRECL = 80)
DCB = (LRECL = 80 , RECFM = FB )
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JOB STATEMENT
/ / JOBNAME JOB . . . . .
ACCT FIELD CLASS
PGMER NAME NOTIFY MSG LEVEL TYPRUN MSG CLASS PRTY COND RESTART USER REGION
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POSITIONAL PARAMETERS ON THE JOB STMNT.
// RUNA JOB DEPT6 9 A , DOE , . . . . .
// RUNB JOB ‘ D 6 9 ,B 2 ‘,’ J DOE ‘, . . . . .
// RUNC JOB (‘ D/ 30 ‘, B 62) , JDOE , . . . . .
// RUND JOB DEPT 6 9 , ‘ MURTHY.D.SINGAM‘, . . . . .
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KEYWORD PARAMETERS ON THE JOB STMNT.
// RUNA JOB 3 MACH 369AC56W , DAVIS ,
// MSGLEVEL = (1 ,1) , MSGCLASS = S ,
// CLASS = E , NOTIFY = TSOIO50 ,
// TYPRUN = SCAN
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RESTART PARAMETER
S T E P 1
S T E P 2
S T E P 3
S T E P 4
RESTART
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JOB ENTRY SUBSYSTEM
E
J S
2
3
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JES 2 CONTROL STATEMENTS
$ COMMAND OUTPUT SIGNOFF
JOBPARM PRIORITY SIGNON
MESSAGE ROUTE XEQ
NETACCT SETUP XMIT
NOTIFY
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// [ name ] COMMAND ‘ command command - operand ‘
//C1 COMMAND ‘ S RMT1 ‘
//C2 COMMAND ‘ SEND ‘ ‘ THE COMPILE STEP IS NOW COMPLETE ‘ ‘, USER = BE 05 ‘
7 1 16
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JES 3 CONTROL STATEMENTS
DATASET NETACCT
ENDDATASET OPERATOR
ENDPROCESS PAUSE
FORMAT PROCESS
MAIN ROUTE
NET SIGNOFF
SIGNON
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//RUN1 JOB 3MACHE369AC56W, ‘ MURTHY’ ,NOTIFY=TSOISDG,// MSGCLASS=A,CLASS=A,MSGLEVEL=(1,1)/*ROUTE PRINT RMT86/*ROUTE PRINT DALVM1. DEVISDG//STEP1 EXEC PGM=IEBGENER//SYSPRINT DD SYSOUT=*//SYSUT1 DD DSN=TSO1023.JCLERRS.CNTL(PROBLEM1),DISP=SHR//SYSUT2 DD SYSOUT=*//SYSIN DD * SPLIT SCREEN
JES JOB LOG -----SYSTEM K158 ----NOD11.53.43 JOB 9019 IEF4521 JOBFAIL JOB NOT RUN --JCL ERROR------------- JES2 JOB STATISTICS --------- 9 CARDS READ 15 SYSOUT PRINT RECORDS 0 SYSOUT OUNCH RECORDS 1 SYSOUT SPOOL KBYTES 0. 00 MINUTES EXEXCUTION TIME 1 //RUN1 JOB 3MACHE369AC56W, ‘MURTHY SD’,NOTIFY=TSOISDG, // MSGCLASS=A,CLAS=A,MSGLEVEL=(1,1) ***ROUTE PRINT RMT86 ***ROUTE PRINT DALVM1.DEVISDG 2 //STEP1 EXEC PGM=IEBGENER 3 //SYSPRINT DD SYSOUT=* 4 //SYSUT1 DD DSN=TSOIO23.JCLERRS.CNTL(PROBLEM1),DISP=SHR 5 //SYSUT2 DD SYSOUT=* 6 //SYSIN DD * STMT NO.MESSAGE 1 IEF6301 UNIDENTIFIED KEYWORD CLAS
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JES2 JOB LOG ----- SYSTEM K158 ----- NOD
14.13.45 JOB 9432 IEF4521 RUN2 JOB NOT RUN - JCL ERROR14.13.45 JOB 9432 $HASP396 RUN2 TERMINATED------------------------- JES2 JOB STATISTICS -------------------------------09 DEC 85 JOB EXECUTION DATE 10 CARDS READ 24 SYSOUT PRINT RECORDS 0 SYSOUT PUNCH RECORDS 1 SYSOUT SPOOL KYBTES 0.00 MINUTES EXECUTION TIME 1 //RUN2 JOB 3MACHE369AC56W,’MURTHY SD’,MSGCLASS=A, // MSGLEVEL=(1,2),NOTIFY=TSOISDG ***ROUTE PRINT RMT86 ***ROUTE PRINT DALVM1.DEVISDG 2 //STEP10 EXEC PGM=IEBGENER 3 //SYSPRINT DD SYSOUT=* 4 //SYSUT1 DD DSN=TSOISDG.TEST.DATA(BASE),DISP=SHR 5 //SYSUT2 DD DSN=TSOISDG.NEW.DATA,DISP=(CATLG,DELETE), // SPACE=(TRK(1,1),RLSE), VOL=SER=EDPAK5 8 //SYSIN NO. MESSAGE
1 IEF6431 UNIDENTIFIED POSITIONSL PARAMETER IN THE MSGLEVEL FIELD
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JES2 JOB LOG -------- SYSTEM K158 ----- NOD
11.54.49 JOB 9024 IEF4521 RUN3 JOB NOT RUN --- JCL ERROR11.54.49 JOB 9024 $HASP396 RUN3 TERMINATED------------------------ JES2 JOB STATISTICS ------------------------09 DEC 85 JOB EXECUTION DATE 8 CARDS READ 22 SYSOUT PRINT RECORDS 0 SYSOUT PUNCH RECORDS 1 SYSOUT SPOOL KBYTES 0.00 MINUTES EXEXCUTION TIME 1 //RUN3 JOB 3MACHE369AC56W,’MURTHY SD’,MSGCLASS=A ***ROUTE PRINT RMT86 ***ROUTE PRINT DALVM1.DEVISDG 2 //STEP1 EXEC PGM=IEBGENER 3 //SYSPRINT DD SYSOUT=* 4 //SYSUT1 DD DSN=TSOIO23.JCLERRS.CNTL(PROBLEM1),DISP+SHR 5 //SYSUT2 DD SYSOUT=* STMT NO. MESSAGE
1 IEF6401 EXCESSIVE NUMBER OF POSITIONAL PARAMETERS ON THE JOB STATEMENTS.
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JES2 JOB LOG -----------SYSTEM K158 ---- NOD
11.55.43 JOB 9026 IEF4521 JOBFAIL JOB NOT RUN ---- JCL ERROR-------------------JES2 JOB STATISTICS------------------------------------------- 8 CARDS READ 14 SYSOUT PRINT RECORDS 0 SYSOUT PUNCH RECORDS 1 SYSOUT SPOOL KBYTES 0.00 MINUTES EXECUTION TIME 1 //RUN4 JOB 3MACHE369AC56W,’MURTHY SD’,MSGCLASS=A, // MSGLEVEL(1,2) ***ROUTE PRINT RMT86 ***ROUTE PRINT DALVM1.DEVISDG 2 //STEP1 EXEC PGM=IEBGENER 3 //SYSPRINT DD SYSOUT=* 4 //SYSUT1 DD DSN=TSOIO23.JCLERRS.CNTL(PROBLEM1),DISP=SHR 5 //SYSUT2 DD SYSOUT=* 6 //SYSIN DD * STMT NO. MESSAGE
1 IEF6321 FORMAT ERROR IN THE MSGCLASS FIELD
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EXEC STATEMENT
// STEPNAME EXEC . . . . .
PGM = CONDPROC = DPRTYPROCNAME = DYNAMNBR PARM PERFORM RD ACCT REGION ADDRSPC TIME
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POSITIONAL PARAMETERS ON THE EXEC STMNT
// STEPNAME EXEC PGM = IEBGENER
// STEPNAME EXEC PROC = BASICJCL
// STEPNAME EXEC BASICJCL
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KEYWORD PARAMETERS ON THE EXEC STMNT.
//RUNA JOB . . . . . . . .
//STEP 2 EXEC PGM = TEST ,
// COND = (4 , EQ , STEP 1 ) , REGION = 1 0M
// TIME = ( 30. 00 ) , PERFORM = 60 , PARM = T1 ,
// DPRTY = ( 15 , 15 ) , ACCT = ( acct info ……….) ,
// DYNAMNBR = 10, RD = NC , ADDRSPC = REAL
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TIME PARAMETER
TIME [ . PROCSTEPNAME ] = { ( [ MINUTES] [ , SECONDS])}
{ 1440 } { NOLIMIT }
{ MAXIMUM }
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TIME PARAMETER
// IF [ ( ] relational - expression [ ) ] THEN . . action when relational - expression is true
// [ name] ELSE . . action when relational - expression is false .
// [ name] ENDIF
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TIME PARAMETER
//BEO5JOB JOB ………………….
//STEP0 EXEC PGM = UPDATE
//STEP1 EXEC PGM = VALIDATE
//IFTEST IF (STEP0 . RC>4 & STEP1 .RC > 20) THEN//STEPA EXEC PGM = . . . . .// ELSE //STEPB EXEC PGM = ……..//IFTEST ENDIF
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Operators on IF/THEN/ELSE/ENDIF Statement Construct
OPERATOR OPERATION ORDER OF EVALUATION
NOT operator:NOT or not first
Comparison operators:GT or > Greater than secondLT or < Less than secondNG or = Not greater than secondNL or = Not less than secondEQ or = Equal secondNE or = Not equal secondGE or >= Greater than or equal to secondLE or <= Less than or equal to second
Logical operators :AND or & AND thirdOR or I OR third
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CONDITIONAL EXECUTION OF JOB STEPS
COND =TRUE
FALSE
BYPASS
EXECUTE
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VALID COMPARISON OPERATORS for COND = parm.
GOLD
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JES2 JOB LOG --------SYSTEM K158 ----- NOD
14.21.40 JOB 9460 IEF4521 RUN6 JOB NOT RUN --- JCL ERROR14.21.40 JOB 9460 $HASP396 RUN6 TERMINATED-----------------JES2 JOB STATISTICS ----------------------------09 DEC 85 JOB EXECUTION DATE 10 CARDS READ 24 SYSOUT PRINT RECORDS 0 SYSOUT PUNCH RECORDS 1 SYSOUT SPOOL KBYTES 0.00 MINUTES EXECUTION TIME 1 //RUN6 JOB 3MACHE369AC56W,’MURTHY SD’,MSGCLASS=A, // MSGLEVEL=(1,1),NOTIFY=TSOISDG ***ROUTE PRINT RMT86 ***ROUTE PRINT DALVM1.DEVISDG 2 //1 EXEC PGM=IEBGENER 3 //SYSPRINT DD SYSOUT=* 4 //SYSUT1 DD DSN=TSOISDG.TEST.DATA(BASE),DISP=SHR 5 //SYSUT2 DD DSN=TSOISDG.NEW.DATA,DISP=(,CATLG,DELETE), // SPACE=(TRK,(1,1),RLSE),VOL=SER=EDPAKS5 6 //SYSIN DD * STMT NO. MESSAGE
2 IEF6471 FIRST CHARACTER OF NAME NOT ALPHABETIC OR NOT NATIONAL
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JES2 JOB LOG ----- SYSTEM K158 ----- NOD
11.57.56 JOB 9033 IEF4521 JOBFAIL JOB NOT RUN -- JCL ERROR--------------- JES2 JOB STATISTICS ------------------------- 9 CARDS READ 16 SYSOUT PRINT RECORDS 0 SYSOUT PUNCH RECORDS 1 SYSOUT SPOOL KBYTES 0.00 MINUTES EXECUTION TIME 1 //RUN7 JOB 3MACHE369AC56W,’MURTHY SD’,MSGCLASS=A, MSGLEVEL(1,1) 2 // MSGCLASS=S,NOTIFY=TSOISDG ***ROUTE PRINT RMT86 ***ROUTE PRINT DALVM1.DEVISDG 3 //STEP1 EXEC PGM=IEBGENER 4 //SYSPRINT DD SYSOUT=* 5 //SYSUT1 DD DSN=TSOIO23.JCLERRS.CNTL(PROBLEM1),DISP=SHR 6 //SYSUT2 DD SYSOUT=* 7 //SYSIN DD * STMT NO. MESSAGES
1 IEF6321 FORMAT ERROR IN THE MSGCLASS FIELD 2 IEF6051 UNIDENTIFIED OPERATION FIELD
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12.01.04 JOB 9043 IEF4521 JOBFAIL JOB NOT RUN -- JCL ERROR--------------- JES2 JOB STATISTICS ------------------------- 14 CARDS READ 21 SYSOUT PRINT RECORDS 0 SYSOUT PUNCH RECORDS 1 SYSOUT SPOOL KBYTES 0.00 MINUTES EXECUTION TIME 1 //TSOISDGA JOB 3MACHE369AC56W, // TSOISDG, **JOB STATEMENT GENERATED BY SUMMIT** // NOTIFY=TSOISDG ,CLASS=A,USER=TSOISDG, // PASSWORD= , // MSGLEVEL=(1,1) 2 //RUN9 CLASS=A, JOB 3MACHE369AC56W,’MURTHY SD’,MSGCLASS=A, 3 // MSGLEVEL=(1,1),MSGCLASS=S,NOTIFY=TSOISDG ***ROUTE PRINT RMT86 ***ROUTE PRINT DALVM1.DEVISDG 4 //STEP1 EXEC PGM=IEBGENER 5 //SYSPRINT DD SYSOUT=* 6 //SYSUT1 DD DSN=TSOIO23.JCLERRS.CNTL(PROBLEM1),DISP=SHR 7 //SYSUT2 DD SYSOUT=* 8 //SYSIN DD * STMT NO. MESSAGES
2 IEF6051 UNIDENTIFIED OPERATION FIELD 3 IEF6051 UNIDENTIFIED OPERATION FIELD
JES2 JOB LOG ----- SYTEM K158 ----NOD
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12.02.30 JOB 9046 IEF4521 RUN10 JOB NOT RUN -- JCL ERROR--------------- JES2 JOB STATISTICS ------------------------- 9 CARDS READ 16 SYSOUT PRINT RECORDS 0 SYSOUT PUNCH RECORDS 1 SYSOUT SPOOL KBYTES 0.00 MINUTES EXECUTION TIME 1 //RUN10 JOB 3MACHE369AC56W,’MURTHY SD’,MSGCLASS=A, // MSGLEVEL=(1,1),NOTIFY=TSOISDG ***ROUTE PRINT RMT86 ***ROUTE PRINT DALVM1.DEVISDG 2 //STEP1 EXEC PGM=IEBGENER 3 //SYSPRINT DD SYSOUT=* 4 //SYSUT1 DD DSN=TSOIO23.JCLERRS.CNTL(PROBLEM1),DISP=SHR 5 //SYSUT2 DD SYSOUT=* 6 //SYSIN DD * STMT NO. MESSAGES
2 IEF6051 UNIDENTIFIED OPERATION FIELD 6 IEF6051 JOB HAS NO STEPS
JES2 JOB LOG -----SYSTEM K158 -----NOD
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12.02.50 JOB 9047 IEF4521 RUN11 JOB NOT RUN -- JCL ERROR--------------- JES2 JOB STATISTICS ------------------------- 9 CARDS READ 15 SYSOUT PRINT RECORDS 0 SYSOUT PUNCH RECORDS 1 SYSOUT SPOOL KBYTES 0.00 MINUTES EXECUTION TIME 1 //RUN11 JOB 3MACHE369AC56W,’MURTHY SD’,MSGCLASS=A, // MSGLEVEL=(1,1),NOTIFY=TSOISDG ***ROUTE PRINT RMT86 ***ROUTE PRINT DALVM1.DEVISDG 2 //STEP1 EXEC PGM=IEBGENER 3 //SYSPRINT DD SYSOUT=* 4 //SYSUT1 DD DSN=TSOIO23.JCLERRS.CNTL(PROBLEM1),DISP=SHR 5 //SYSUT2 DD SYSOUT=* 6 //SYSIN DD * STMT NO. MESSAGES
2 IEF6051 INCORRECT USE OF MINUS ON THE EXEC STATEMENT
JES2 JOB LOG ----- SYSTEM K158 --- NOD
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12.04.05 JOB 9049 IEF4521 RUN12 JOB NOT RUN -- JCL ERROR--------------- JES2 JOB STATISTICS ------------------------- 9 CARDS READ 16 SYSOUT PRINT RECORDS 0 SYSOUT PUNCH RECORDS 1 SYSOUT SPOOL KBYTES 0.00 MINUTES EXECUTION TIME 1 //RUN12 JOB 3MACHE369AC56W,’MURTHY SD’,MSGCLASS=A, // MSGLEVEL=(1,1),NOTIFY=TSOISDG ***ROUTE PRINT RMT86 ***ROUTE PRINT DALVM1.DEVISDG 2 //STEP1 EXEC PGM=IEBGENER 3 //SYSPRINT DD SYSOUT=* 4 //SYSUT1 DD DSN=TSOIO23.JCLERRS.CNTL(PROBLEM1),DISP=SHR 5 //SYSUT2 DD SYSOUT=* 6 //SYSIN DD * STMT NO. MESSAGE
2 IEF6051 UNIDENTIFIED OPERATION FIELD 6 IEF6071 JOB HAS NO STEPS
JES2 JOB LOG -------- SYSTEM K158 ---- NOD
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14.21.59 JOB 9462 IEF4521 RUN13 JOB NOT RUN -- JCL ERROR14.21.59 JOB 9462 $HASP396 RUN13 TERMINATED--------------- JES2 JOB STATISTICS ------------------------ 09 DEC 85 JOB EXECUTION DATE- 10 CARDS READ 24 SYSOUT PRINT RECORDS 0 SYSOUT PUNCH RECORDS 1 SYSOUT SPOOL KBYTES 0.00 MINUTES EXECUTION TIME 1 //RUN13 JOB 3MACHE369AC56W,’MURTHY SD’,MSGCLASS=A, // MSGLEVEL=(1,1),NOTIFY=TSOISDG ***ROUTE PRINT RMT86 ***ROUTE PRINT DALVM1.DEVISDG 2 //EXAMPLE13 EXEC PGM=IEBGENER 3 //SYSPRINT DD SYSOUT=* 4 //SYSUT1 DD DSN=TSOISDG.TEST.DATA(BASE),DISP=SHR 5 //SYSUT2 DD DSN=TSOISDG.NEW.DATA,DISP=(,CATLG,DELETE), // SPACE=(TRK,(1,1),RLSE),VOL=SER=EDPAK5 6 //SYSIN DD * STMT NO. MESSAGES
2 IEF6421 EXCESSIVE PARAMETER LENGTH ON THE EXEC STATEMENT
JES2 JOB LOG ---- SYSTEM K158 --- NOD
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12.07.01 JOB 9059 IEF4521 RUN16 JOB NOT RUN -- JCL ERROR -------------- JES2 JOB STATISTICS ------------------------ 9 CARDS READ 15 SYSOUT PRINT RECORDS 0 SYSOUT PUNCH RECORDS 1 SYSOUT SPOOL KBYTES 0.00 MINUTES EXECUTION TIME 1 //RUN16 JOB 3MACHE369AC56W,’MURTHY SD’,MSGCLASS=A, // MSGLEVEL=(1,1),NOTIFY=TSOISDG ***ROUTE PRINT RMT86 ***ROUTE PRINT DALVM1.DEVISDG 2 //SYSIN DD * GENERATED STATEMENT 3 //SYSPRINT DD SYSOUT=* 4 //SYSUT1 DD DSN=TSOIO23.JCLERRS.CNTL(PROBLEM),DISP=SHR 5 //SYSUT2 DD SYSOUT=* 6 //SYSIN DD * STMT NO. MESSAGE
2 IEF6071 JOB HAS NO STEPS
JES2 JOB LOG ------ SYSTEM K158 --- NOD
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2.08.49 JOB 9065 IEF4521 RUN18 JOB NOT RUN -- JCL ERROR -------------- JES2 JOB STATISTICS ------------------------ 9 CARDS READ 15 SYSOUT PRINT RECORDS 0 SYSOUT PUNCH RECORDS 1 SYSOUT SPOOL KBYTES 0.00 MINUTES EXECUTION TIME 1 //RUN18 JOB 3MACHE369AC56W,’MURTHY SD’,MSGCLASS=A, // MSGLEVEL=(1,1),NOTIFY=TSOISDG ***ROUTE PRINT RMT86 ***ROUTE PRINT DALVM1.DEVISDG ***STEP10 EXEC PGM=IEBGENER 2 //SYSPRINT DD SYSOUT=* 4 //SYSUT1 DD DSN=TSOIO23.JCLERRS.CNTL(PROBLEM),DISP=SHR 5 //SYSUT2 DD SYSOUT=* 6 //SYSIN DD * STMT NO. MESSAGES
2 IEF6071 JOB HAS NO STEPS
JES2 JOB LOG ----- SYSTEM K158 --- NOD
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DD Statement
Subtopic objectives
After attending this subtopic the student should be able to :
* Code a DD statement and use different parameters* Recognise when different parameters are needed* Find errors in a DD statement
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DD ( Data Definition ) STATEMENT
/ / DDNAME DD . . . .
* DSN VOL DCBDATA DISP SPACE SYSOUT
DUMMY UNIT LABEL
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DESCRIBING THE DATA
USERPROGRAM
DDNAME= DD1
VTOC
D C B (DATA CONTROL; BLOCK)
// JOB/ / EXEC/ / DD1 DD DSN=/ ./ DCB =/ / DD2 DD
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POSITIONAL PARAMETERS ON THE DD STMNT.
/ / INDATA DD * DATA
, DLM =
instream data for input
/* OR // * OR // ( end of data )
or two character delimiter
// INDATA DD DUMMY
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KEYWORD PARAMETERS ON THE DD STATEMENT
/ / SYSUT 2 DD DSN = OUTTAPE ,
/ / DISP = ( , CATLG ) , UNIT = TAPE ,
/ / VOL = SER = TAPE 01 ,
/ / LABEL = ( , NSL , RETPD = 99001 )
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KEYWORD PARAMETERS ON THE DD STATEMENT
/ / SYSUT 2 DD DSN = OUTDATA
/ / DISP = ( , CATLG ) , UNIT = SYSDA ,
/ / VOL = SER = EDPAK 5 , SPACE = (TRK ,1 ) ,
/ / DCB = (LRECL = 80 , BLKSIZE = 800 ) ,
/ / RECFM = FB
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DDNAME FIELD ON THE DD STATEMENT
/ / PRINT DD DSN = JCLCLASS
/ / DD 1 DD DSN = TESTDATA
/ / SYSUT 2 DD DSN = BASIC . JCL 85
/ / DD DSN = BASIC . JCL 86
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DEFINITION OF CONCATENATION
C
O
N
C
A
T
E
N
AT
I
O
N
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RULES OF CONCATENATION
RULES
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RULES FOR CODING CONCATENATION
EDUC . C
EDUC . A EDUC . B
EDUC.A EDUC.B EDUC.C
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SIMPLE DATA SET NAME
DSN = A
DSNAME = # X 2
DSN = $ A B C
DSN = A 1 2 3 4 5 6 7 8 CHARS
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QUALIFIED DATA SET NAME
DSNAME = TSOIO99 . DATA
DSN = ‘ ENTRY . OPED ‘ ‘S . DAY ‘
DSN = TSOI O 99 . MORE .OPED . DATA
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PATITIONED DATA SET ( PDS ) NAME
DSN = ENTRY ( TEST 2 )
DSN = TSO I O 99 . DATA ( MEM 1) 44 CHAR. 8 CHAR.
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TEMPORARY DATA SET NAME
DSN = & & SORTOUT
DSN = & & TEMP ( MEM 1 ) 8.CHARS. 8.CHARS.
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DEFINITION OF REFERBACKS
/ / TSOIO XX JOB
/ / STEP 1 EXEC
/ / OUT 2 DD DSN =
/ / STEP 5 EXEC
/ / NEWOUT DD DSN = *. STEP 1 . OUT 2
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DATA SET REFERENCED FROM A PREVIOUS STEP
/ / STEP 2 DD DSN = * . STEP 1 . DD4 ,
/ / DISP = ( OLD , DELETE )
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DISP PARAMETER ON THE DD STATEMENT
INITIAL NORMAL ABNORMAL
DISP = ( NEW , DELETE , DELETE)
OLD , KEEP , KEEP
SHR , PASS , CATLG
MOD , CATLG , UNCATLG , UNCATLG
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UNIT PARAMETER
UNIT = ( DEV ADDRESS , UNIT COUNT , DEFER )
DEV TYPE
GROUP NAME
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VOLUME OR VOL PARAMETER
VOL = SER = EDPAK 5
VOL = REF = DSNAME
VOL = REF = * . DDNAME
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SPACE PARAMETER
SPACE = ( TRK , ( pqty , sqty , dir ) , RLSE)
CYL
blklgth
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VOLUME LABEL ON TAPE
STANDARD LABEL
TAPEMARK
TAPEMARK
EOF 2 EOF 1 TAPEMARK
DATASET 2 HDR2 HDR1
TAPEMARK
EOF 2EOF 1TAPE MARKDATASET 1
TAPEMARK
HDR 2 HDR 1 VOLUME LABEL
NOLABEL
DATASET 1TAPEMARKDATASET 2TA
PEMARK
TAPE MARK
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LABEL PARAMETER
LABEL = ( SEQ # , SL , RETPD = nnnn )
, SUL , EXPDT = yyddd)
, AL , AUL
, NSL , NL
, BLP , LTM
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DCB PARAMETER
DCB = ( RECFM = RECORD FORMAT ,
LRECL = LOGICAL RECORD LENGTH ,
BLKSIZE = LGTH OF BLK )
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SYSOUT PARAMETER
SYSOUT = ( CLASS NAME )
/ /SYSUT 2 DD SYSOUT = A
/ /SYSPRINT DD SYSOUT = *
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PARAMETERS FOR EXISTING CATALOGED DATA SET
/ /DDNAME DD . . . .
DSN =
DISP =
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PARAMETERS FOR EXISTING NONCATALOGED DATA SET
/ /DDNAME DD . . . . .
DSN =
DISP = VOL =
UNIT =
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PARAMETERS FOR CREATING A DATA SET
/ /DDNAME DD . . . .
DSN = VOL =
DISP = SPACE =
UNIT DCB =
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SPECIAL DDNAMES
/ /JOBLIB
/ /STEPLIB
/ /SYSABEND
/ /SYSUDUMP
/ /SYSCHK
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Topic 3. IBM Utilities
ObjectivesUpon completion of this unit the student should be able to :* Understand what an IBM Utility Program is and how they are used* List the three classes of IBM Utility Programs* State what two types of statements utilities use.*Describe the general format and code statements for various utility prog.*Identify and code the JCL required for various utility programs.* Understand how to use the IBM Utilities Manual.* Code a utility program to perform the following. - List the VTOC for a data set on DASD. - List information about a partitioned data set on DASD. - Scratch and uncatalog a data set on DASD. - Copy a data set from one device to another. - Print a data set.
82
MVS / ESADATA ADMINISTRATION
U T I L I T I E S
M A
N
U
A
L
SC26 - 4599
83
WHAT IS A
UTILITY
84
SYSTEM UTILITY DATA SET UTILITYPROGRAMS PROGRAMS
• IEHATLAS
• IEHINITT
• IEHLIST
• IEHMOVE
• IEHPROGM
• IFHSTATR
• IEBCOMPR
• I EBCOPY
• IEBDG
• IEBEDIT
• IEBGENER
• IEBIMAGE
• IEBISAM
• IEBPTPCH
• IEBUPDTE
INDEPENDENT UTILITY PROGRAMS• ICAPRTBL
85
UTILITY CONTROL STATEMENT CODING RULES
/ /STEPNAME EXEC PGM =
/ /SYSIN DD *
(COL.4) (COL.7 2)
LISTVTOC DSNAME = dsname , X VOL = device = serial , FORMAT/* (COL.16)
86
IEHPROGM PROGRAM
• SCRATCHES RENAMES CATALOGS
• UNCATALOGS
87
JCL STATEMENTS for IEHPROGM
/ /JOBNAME JOB/ /STEPNAME EXEC PGM = IEHPROGM
/ /SYSPRINT DD SYSOUT = */ /ANYNAME 1 DD UNIT = device ,
/ / VOL = SER = serial ., DISP = SHR/ /ANYNAME 2 DD UNIT = ,VOL = ,DISP =
/ /SYSIN DD * UTILITY CONTROL STATEMENT/*
88
UTILITY CONTROL STATEMENTS for IEHPROGM
SCRATCH DSNAME = dsname , X
VOL = device = serial
UNCATLG DSNAME = dsname
89
IEHLIST PROGRAM
• LIST CATALOG
• LIST PDS
• LIST VTOC
90
JCL STATEMENTS for IEHLIST
/ /JOBNAME JOB/ /STEPNAME EXEC PGM = IEHLIST
/ /SYSPRINT DD SYSOUT = */ /ANYNAME 1 DD UNIT = device ,/ / VOL = SER = serial , DISP =SHR/ /ANYNAME 2 DD UNIT = ,VOL = ,DISP =/ / SYSIN DD *
UTILITY CONTROL STATEMENT/*
91
UTILITY CONTROL STATEMENTS for IEHLIST
LISTPDS DSNAME = dsname , X
VOL = device = serial , format
LISTVTOC DSNAME = dsname , X
VOL = device = serial , format
92
IEBGENER PROGRAM
IEBGENER
93
JCL STATEMENTS for IEBGENER
/ /JOBNAME JOB/ /STEPNAME EXEC PGM = IEBGENER
/ /SYSPRINT DD SYSOUT = */ /SYSUT 1 DD ………….
/ /SYSUT 2 DD …………./ /SYSIN DD *
UTILITY CONTROL STATEMENT
/*
94
CODING the SYSUT 1 STATEMENTS
/ /SYSUT 1 DD ( card input )
/ /SYSUT 1 DD DSN = dsname , DISP = SHR
/ /SYSUT 1 DD DSN = dsname (member) ,
/ / DISP = SHR
95
CODING the SYSUT 2 STATEMENTS
/ /SYSUT 2 DD SYSOUT = P, DCB = BLKSIZE = 80
/ /SYSUT 2 DD SYSOUT = *, DCB = BLKSIZE = 133
/ /SYSUT 2 DD DSN = dsname , DISP = . . . . . .
/ /SYSUT 2 DD DSN = dsname ( member ) ,DISP = . . . . . .
96
UTILITY CONTROL STATEMENTS for IEBGENER
GENERATE MAXNAME = n
MEMBER NAME = name
97
IEBCOPY
DIRECTORY M1 M2
MEMBER 1
MEMBER 2
DIRECTORY M1 M2
MEMBER 1
MEMBER 2
PDS 1 PDS 2
98
IEBCOPY
COPY
ALTERMOD
COPYMOD
SELECT
EXCLUDE
99
IEBCOMPR
100
IEHMOVE
COPY
MOVE
101
IEHMOVE UTILITY CONTROL STATEMENTS
COPY
MOVE
SELECT
EXCLUDE
INCLUDE
REPLACE
102
Topic 4 . VSAM Concepts
Objectives
Upon completion of this unit the student should be able to :
* Discuss the similarities and differences between the four types of VSAM data sets* Define, Delete, Copy, and Print VSAM data sets using AMS(IDCAMS).* Obtain catalog information about VSAM data sets.
103
VSAM
?? ?
?
? ? ?
?
104
WHY USE VSAM
VSAM
105
WHEN TO USE VSAM
DATA
BASE
MASTERCATALOG
USERDATA
USERCATALOG
106
VSAM MANAGES . . . . .
CATALOGS DATA
107
CATALOGS
DATASET NAME
RECORD SIZE
FREE SPACE
108
TYPES OF VSAM DATASETS
KSDS ESDS RRDS LINEAR
109
KEY - SEQUENCED DATA SETS
KSDS
MURTHY SD NAME
174167
SERIAL
110
INSERTING RECORDS INTO A KSDS
MURTHY SD SINGH KL
SACHIN T 396437
174167 746123
111
ENTRY - SEQUENCED DATA SETS
ESDS
R 1 R 2
R 3
112
RELATIVE RECORD DATA SETS
R R D S
1 2 3 ( E ) 4
* E = EMPTY SLOT
113
LINEAR DATA SET
LINEAR DATASET
DATA OBJECT
VITUALSTORAGE
MAP
114
COTROL INTERVALS
115
FIELDS IN CONTROL INTERVALS
R1 R 2 R n FREE SPACE
RDFn
RDF1
RDF2
CIDF
R CD IF D F
116
ADDING RECORDS IN A CONTROL INTERVAL
R 2
R 1 FREE SPACE
RDF1
CIDF
117
MORE ON CONTROL INTERVALS
R 1 R 2 FS RDF2
RDF1
CIDF
118
ANSWER TO QUIZ
R 1 R 2 R 3 R 4 F S
R R CD D IF F D2 1 F
119
CONTROL INTERVAL SPLITR 5 R 6
R1 R2 R3 R4 FSRDF2
RDF1
CIDF
R1 R2 R3 FSRDF2
RDF1
CIDF
R4 R5 R6 FSRD RD CIF2 F1 DF
120
CONTROL AREAS
CONTROL INTERVAL
CONTROL INTERVAL
CONTROL INTERVAL
CONTROL INTERVAL
121
THE VSAM UTILITY
ACCESS METHOD SERVICES
IDCAMS
122
INVOKING IDCAMS
//stepname EXEC PGM=IDCAMS
//SYSPRINT DD SYSOUT=A
//ddname DD DSN=clustername
//SYSIN DD *
AMS statements
/*
123
CONTROL STATEMENTS
COL 2
STATEMENT - STATEMENT
124
DEFINING A CLUSTER
DATA
INDEX
125
CLUSTER INFORMATION
DEFINE - CLUSTER -
(NAME (BE05JCL.FILE) - VOLUMES (VOL001) -
TRACKS (1,1) -
126
DATA COMPONENT
DATA -
(NAME (BE05JCL.FILE.DATA) - RECORDSIZE (200,200) -
KEYS (10 ,5) -
127
INDEX COMPONENT
INDEX -
(NAME (BE05JCL.FILE.INDEX))
128
CLUSTER
DATA
INDEX
129
DELETING DATA SETS
DELETE -
TEST. FILE -
CLUSTER - PURGE -
ERASE
130
REPRO STATEMENT
REPRO -
INFILE (ddname) -
OUTFILE (ddname) -
131
PRINTING VSAM DATA SETS
PRINT -
INDATASET (BE05JCL.FILE) -
CHAR
132
LISCAT STATEMENT
LISTCAT -
ENTRIES (BE05JCL .FILE)
133
Topic 5. Generation Data Groups.
ObjectivesUpon completion of this unit the student should be able to:
* Discuss the uses of generation data sets.
* Define and use a generation data set.
* Delete a generation data set.
134
GDGs
135
NAMING CONVENTION
ABSOLUTE NAME RELATIVENAME CHRONOLOGICAL ORDER
GEN.GOOO6VOO GEN(O) CURRENT
GEN.GOOO5VOO GEN(-1)
GEN.GOOO4VOO GEN(-2) OLDEST
136
ALLOCATE GDG BASE
GDG BASE
CATALOG
137
DEFINE MODEL DSCB
CATALOG
VTOC. . . . . . .
MODEL DSCB . . . . . .
138
CREATE GDS
0
IEFBR14
+1
-2
-1
0
139
DELETING GDG CATALOG ENTRIES
-2
140
Topic 6. JCL Procedures
Objectives
Upon completion of this unit the student should be able to :
* Disciss the usage of procedures
* Define an instream procedure
* Use the three methods of modifying a procedure at run time.
141
PROCEDURES
PROC
142
TYPE OF PROCEDURES
PROC
PEND
PROC
INSTREAM
CATALOGUED
143
//[name] JCLLIB ORDER=(Library[,library] …)
//MYLIB JCLLIB ORDER=(BE05.JCL.PROCLIB,// BE05.JCL.PROCLIB1)
144
//[name] INCLUDE MEMBER=name
//BE05JCL JOB . . . . .//LIBRARY JCLLIB ORDER=BE05MST.JCL.PROCLIB//STEP1 EXEC PGM=PRINT//DD1 INCLUDE MEMBER=SYSOUT1//STEP2 EXEC PGM=DELETE . . .
145
INVOKING A PROCEDURE
// EXEC Procname
// EXEC PROC=procname
146
SPECIFYING AN INSTREAM PROC.
PROC•
PEND
147
Procedure C://C PROC//C51 EXEC PGM=GHI
//C PEND
Procedure B://B PROC//B51 EXEC PROC=C .//B52 EXEC PGM=DEF//B PEND
Procedure A://A PROC//AS1 EXEC PROC=B .//AS2 EXEC PGM=ABC .//A PEND
Job Stream://JOB1 JOB . . . . .//STEP1 EXEC PROC=A .//STEP2 EXEC PGM=JKL . . .
148
//JOB1 JOB . . . . . level 0
//CS1 EXEC PGM=GHI level 3
.
//BS2 EXEC PGM=DEF level 2
.
//AS2 EXEC PGM=ABC level 1 .
//STEP2 EXEC PGM=JKL level 0
149
MODIFYING A PROCEDURE
PROC
REVISED
150
OVERRIDING DD STATEMENTS IN A PROCEDURE
//MYPROC PROC
//STEP1
//IN DD DSN=A// PEND
// EXEC MYPROC//STEP1.IN DD DSN=B
151
ORDERING THE OVERRIDE STATEMENTS
//MYPROC PROC//S1 EXEC ---------//DD1 DD ----------//S2 EXEC ----------//DD2 DD ----------//RUN EXEC MYPROC//S1.SYSIN DD *
----------- -----------//S2.SYSIN DD * ------------ -----------/*
152
SYMBOLIC PARAMETERS
//MYPROC PROC U=SYSDA
//DD1 DD DSN=……., UNIT= &U,…….//DD2 DD DSN=……., VOL=SER= &P,…..
// EXEC MYPROC,P=EDPAK3
153
//[name] SET symbolic-parameter=value
//SP1 SET PARM3=‘3400-6’
//SP2 SET PARM4=123456
154
MODIFYING THE EXEC STATEMENT
PROC=_______
COND=
REGION=
155
Topic 7. Introduction to DFSMS
Objectives
The purpose of this unit is to introduce SMS concepts.
156
STORAGE MANAGEMENT SUBSYSTEM
NON SMS
193
1D3
5CB
240 978
3350
3380
3380J
3380
3380K
3380E 3380
3380JMVSRES
3380KPAST
CACHE
DSN=EndDISP=UserUNIT=VOL=SER=DCB=TRKCYLRECFMLRECLEXPDTRETPD
PERFORMANCE UTILIZATION
DC
SC
MC
DSN=
DISP=
SMS
FUTURE
DASDSTORAGE
157
DATASET
WHAT ARE THE SERVICES ?
SELECTION ROOTWHATDOESITLOOKLIKE
WHATARETHESERVICES
SELECTIO RN O U T I N E
DATACLASS
MANAGEMENT CLASSSTORAG CE L A S S STORAGE GROUP
SELECTION ROUTINE
SELECTION R O U T I N E
WHERE IS IT PLACED ?
158
WHAT DOES IT LOOK LIKE ?
Data Class Attributes----Data set type----Record length
----Space Information----EXPDT / RETPD
----VSAM Keys----VSAM subparameters
DATACLASS
D C
159
WHAT IS THE SERVICE ?
Storage Class Attributes
---- Performance
---- Continuous availability
STORAGECLASS
SC
160
HOW IS IT MANAGED ?
M CManagement Class Attributes
----Recovery capability
----Space occupancy
161
WHERE IS IT PLACED ?
Storage Group Attributes
----- Volume management
NOT visible to users !
S C
162
Automatic Class Selection Environment
DATACLASSROUTINE
STORAGECLASSROUTINE
ManagementCLASSROUTINE
STORAGECLASSROUTINE
SC=xxx
notsystemmanaged
sc=null
systemmanaged
163
SMS can manage
• PHYSICAL SEQUENTIAL• PARTITIONED• VSAM• BDAM• GENERATION DATA GROUPS (GDG)• TEMPORARY• VIO
164
Overview JCL Changes
* PROMOTED KEYWORDS
* SUPPORT OF SMS SPECIFICATIONS
* NEW WAYS TO REFERENCE ‘MODEL’
* VSAM DEFINITIONS VIA JCL
165
New JCL Keywords
ALL DATA SETS SMS MANAGED
DATACLASRECORGAVGRECKEYOFFLIKEREFDDSECMODEL
STORCLASMGMCLAS
166
JCL Data Class
* SPECIFIES DATA CLASS FOR NEW SYSTEM - or NON-SYSTEM -MANAGED DASD DATA SETS
* DATA CLASS IS A NAMED LIST OF DEFAULT ALLOCATION ATTRIBUTES RECORG KEYOFF RECFM RETPD / EXPDT LRECL SPACE KEYLEN VOLUME COUNT
VSAM OPTIONS (IMBED , REPLICATE , CISIZE , FREESPACE, SHAREOPTIONS)
167
JCL Storage Class
* SPECIFICATIONS STORAGE CLASS FOR NEW SYSTEM- MANAGED DATA SETS
* STORAGE CLASS IS A NAMED LIST OF OBJECTIVES PERFORMANCE AVAILABILITY
* REQUEST FOR SERVICE, NOT FOR RESOURCE
168
JCL Management Class
* SPECIFIES MANAGEMENT CLASS FOR NEW SYSTEM- MANAGED DATA SETS
* NAMED LIST OF AVAILABILITY AND SPACE MANAGEMENT ATTRIBUTES
------PARTIAL RELEASE ------BACKUP ------RETENTION ------MIGRATION
* SPECIFICATIONS DIRECT ‘DFHSM’ ACTIVITIES
169
JCL SPACE INFORMATION
* SPACE= ( , ( , ,dir) ) OVERIDE NUMBER OF DIRECTORY BLOCKS SPECIFIED IN DATA CLASS
* AVGREC = U /K /M SPECIFIES SCALE MODIFICATION TO AVERAGE RECORD LENGTH REQUEST , SPACE = ( reclgth ,( prim -qty , sec - qty)) -- U -- multiply by 1 -- k -- multiply by 1024 -- M -- multiply by 1048576
170
NEW JCL LIKE PARAMETER
* SPECIFIES PROPERTIES OF AN EXISTING CATALOGED DATA SET TO BE USED TO ALLOCATE A NEW DATA SET
RECORG LRECL RECFM KEYLEN SPACE KEYOFF* REPLACES DCB = dsname* INCONSISTENCIES BETWEEN JCL AND TSO LIKE
----BLKSIZE, EXPDT COPIED FOR TSO LIKE ,NOT NOT SO FOR JCL LIKE
----JCL LIKE COPIES DIRECTORY SIZE, TSO PROMPTS FOR IT
171
VSAM DATA SET via JCL
//NEWVSAM DD DSN =MY.NEW.VSAM,DISP=(NEW,CATLG)// LRECL=120,// SPACE=(120,(1000,500)),// AVGREC=K,// RECORG=KS,// KEYLEN=17,// KEYOFF=6
172
CATALOGING PERMANENT SMS DATA SET
* ALL PERMANENT SMS DATA SETS ARE
* CATALOGED AT TIME OF SPACE ALLOCATION * UNCATALOGED WHEN DATA SET IS SCRATCHED
* ALLOCATION OF NON-VSAM DATA SETS CAUSES
* THE CREATION OF A BCS ENTRY * THE CREATION OF A VVDS ENTRY
* UNCATALOGED DATA SETS CANNOT BE SMS MANAGED
173
CATALOGING TEMPORARY VSAM DATA SETS
* CATALOGING TEMPORARY VSAM DATA SETS ----NO BCS ENTRY IS CREATED ----ONLY VVR(s) ARE BUILT ----STANDARD TEMPORARY DATA SET NAME
* LIMITATIONS ----NO AIX or PATH SUPPORT ----SHAREOPTIONS(1) ONLY ----SINGLE VOLUME ONLY
* TEMPORARY NON-VSAM DATA SETS REMAIN UNCATALOGED
174
GDG PROCESSING
* SMS-managed GDG consists of cataloged sequential and / or direct data sets residing on DASD volumes* SMS-managed GDG may contain both SMS-and non-SMS- -managed GDGs* GDSs in a GDG can have like or unlike data set attributes and data set organisations* SMS affects GDG processing due to its implementation of mandatory cataloging.Changes are : ---Allocation without pattern DSCB ---Allocation of new generation ---AMS ALTER command usage ---Disposition processing of new generations
175
Topic 8. Open Edition
Objectives
The purpose of this unit is to introduce the student to edition
176
FILE NAMING CONVENTIONS
C program . . .open(char “ / dir1 /DIR2 / FILEname “, Int O_RDONLY);
ROOT DIRECTORY
DXFILE1FILE2
DIR2
FILEname
177
FILE NAMING CONVENTIONS WITH PATH =
OPENEDITION DD STATEMENT://DD1 DD PATH=‘/ dir1 / DIR2 / FILEname// . . ROOT DIRECTORY
DX
FILE1FILE2
dir1
dir2
FILEname
178
NEW JCL KEYWORDS
New JCL keywords for HFS files:
PATH = HFS file namePATHOPTS= HFS file access and status modePATHMODE= HFS file access attributesPATHDISP= HFS file disposition
Commands and macros affected by this change:
ALLOCATE TSO / E CommandDYNALLOC Macro
179
MODIFIED JCL PARAMETERS
Modified JCL Parameter :
DSNTYPE =[HFS] {PIPE}
180
DATA ACCESS
TRADITIONAL
2) DCB
DCB a.b.c
A.B.C1)dname
//SYSPRINT DD DSN =A,B,C
DDNAME
POSIX2)FILEDESCRIPTOR
23=/a/b/c
a/b/c1) PATHNAME
MYDATA = a/b/c
Symbolic link
181
NON-POSIX CALLABLE SERVICES
RMF
1101
UMTUNMOUNT()
MNTMOUNT()
MKNMKNOD()
CHACHAUDLTL()
FCHFCHAUDIT()
QSEQUIESCE()
UQSUNQUIESCE()
GMNW-GETMNTENT()
STFW-STATFS()
MPC
MVS
LPA
EXMexecmvs()
MSDmvsunsigsetup()
MSSmvssigsetup()
PTRptrace()
RMG resource()
HW
IOClootl()
182
BATCH ENVIRONMENT
MVS batct job :
START OF JOB
MVS BATCH PROGRAM
OPEN MVS BATCH PROG.
MVS BATCH PROGRAM
END OF JOB
//OPENBATC JOB
//S1 EXEC PGM=MVSPROG1
//S2 EXEC PGM=BPXBATCH,// PARM=‘pgm cprog a1 a2’
//S3 EXEC PGM=MVSPROG2
//
183
JCL EXAMPLE - SHELL SCRIPT
Open MVS batch execution of a shell script :
//OMVSSHELL JOB USER=username//OMVSEXEC EXEC PGM=BPXBATCH//STDIN DD PATH=‘/DIR1/DIR2/SHELL.SCRIPT//STDOUT DD PATH=‘DIR1/DIR2/STD.OUTPUT’,// PATHOPTS=(OWONLY,OCREATE),// PATHMODE=(SIRWXV),// PATHDISP=KEEP//STDERR DD PATH=‘DIR1/DIR2/STD.ERROR’,// PATHOPTS=(OWONLY,OCREATE),// PATHMODE=(SIRWXV),// PATHDISP=KEEP
184
JCL EXAMPLE - C PROGRAM
OPEN MVS BATCH EXECUTION OF C PROGRAM
//OMVSCPGM JOB USER=username//OMVSEXEC EXEC PGM=BPXBATCH,// PARM=‘pgm cporg a1 a2’//STDOUT DD PATH=‘/DIR1/DIR2/STD.OUTPUT’,// PATHOPTS=(OWONLY,OCREATE),// PATHMODE=(SIRWXV),// PATHDISP=KEEP//STDERR DD PATH=‘DIR1/DIR2/STD.ERROR’,// PATHOPTS=(OWONLY,OCREATE),// PATHMODE=(SIRWXV),// PATHDISP=KEEP//