JES2 System Operator

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Bogdan Lazar
OS/390 JES2 Operator Training
July 10, 2015

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JCL Job Control Language (JCL) is a name for scripting languages used On IBM mainframe operating systems to instruct the system on how to run a batch job or start a subsystem. JCL acts as an interface between application programming and MVS Operating system. Jcl is used for compilation and execution of batch programs. Apart from the above functionalities JCL can also be used for, 1. Controlling the jobs. 2. Create GDG’S. 3. Allocate PDS,PS file with IBM Utilities. 4. Create Procs. 5. Sort the files. JCL Coding Sheet 1,2,3----------Column Numbers----------72,73------------80 //JOBNAME JOB PARAMETERS------COMMENTS // EXEC // DD //* ------------ Comment (* in 3rd column indicates line in comment) //------------ End of JCL Where // ----- Identification Field job name------- Naming field JOB,EXEC,DD - Statement / Operation NOTE If we want to continue parameters in the next line end the last parameter with “,” and continue next parameter only in 4-16 columns. There are three statements in JCL. JOB EXEC DD JOB Statement: Job statement is used to identify job name and job related parameters JOBCARD = job name + job related parameters. Syntax //JOBNAME JOB ACCOUNT INFORMATION,’USERNAME’,CLASS=A-Z/0-9, // NOTIFY =&SYSUID/RACF ID,MSGCLASS, // MSGLEVEL=(X,Y),PRTY=0-15, // TIME=(M,S),REGION=MB/KB,TYPRUN=SCAN/ // HOLD/COPY,COND=(RC,OPERATOR,STEPNAME) // COND=ONLY OR COND=EVEN,RESTART=STEPNAME JOBNAME It is required to identify this job from other jobs in the SPOOL 1 to 8 characters minimum 1 character and maximum is 8 character. 1st character must be alphabet. Other characters can be alphabets or numeric or $,&,#. Example Job names for personal or lab sessions Userid + 1 / 2 chars KC03P83$ ------- Userid is KC03P83 KC03P84&--------Userid is KCO3P84 ACCOUNTING INFORMATION It is a keyword parameter and codes it after JOB statement. It is used for billing purpose, in real time when we submit any job it is going to take some CPU time. Based on the CPU time there will be some amount involved where this amount has to go will be decided by A/C information parameters. Examples (8012T) (80121I) (8012M) USERNAME It is used to identify the user who has written the JCL. It can be maximum of 20 characters. Note Both A/C information and user name are positional parameters and the remaining job card parameters are keyword parameters. EX1: //KC03P83A JOB (487A),’JANAKI RAM’ EX2: //KC03P84& JOB (488T),’SOMISETTY’ NOTIFY To which user id the job has to be notification after successful or unsuccessful completion. Successful completion means MAXCC = 0 (or) 04 unsuccessful completion means MAXCC > 04. If it is not coded,then user has to check the status of the job from the spo

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JES2 System Operator

1. Bogdan Lazar OS/390 JES2 Operator Training July 10, 2015