CLASS It is used to assign the properties to the job. Suppose if you submit at the job at the same time which job has to run first time and which job has to run 2nd time and so on will be decided by class parameter. Note This class parameter priority is set by MVS Admin Team It has single character from A-Z Each class has properties on resources over the other classes Real Time Examples Class = P----- Production Class Class = M---- Model/UAT Class Class = I ----- SIT Class A – Short Running Class B – Long Waiting Class C – Long Running Class In test region more users submit their jobs, so more classes required. In SIT/UAT/PROD most of jobs are submitted one after the other. MSGCLASS It is another keyword parameter which is used to route diagnostic messages i.e (pass or fail) to specify destination. Destination can be auxiliary , printer and spool EX MSGCLASS = A ----------- SPOOL MSGCLASS = B ---------- PRINT MSGCLASS = C ---------- SAR TOOL MSGLEVEL It is another keyword parameter, which is used to control volumes of the messages . Message level contains of two sub parameters (STMTS,MSGS) STMTS is used to specify type of message, where as MSG is used to specify status of job i.e normal or abnormal. STMTS CONSISTS OF 0,1,2 0 -- Is for job related messages 1-- Is for all messages 2- Is for DD or activity related MSG CONSISTS OF 0,1 0 --- Normal 1--- Abnormal PRIORITY It is used to set the priority to the jobs by giving specific values ranging from 0 to 14 When we have multiple jobs with same class parameter then the priority comes in to consideration. PRTY = 14 -- Highest Priority PRTY = 0 --- Lowest Priority EX Job1 Job2 Job3 Class=X, Prty=7 Class=X,Prty=6 Class=X,Prty=9 Then the job swill be executed in the following sequence job3, job1 and job 2. When have CLASS,PRTY parameters same for all jobs then JOBID comes into consideration. JOBLIB is generated by job entry subsystem (JES), it is the processor in MVS. 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 spool. It has two methods. NOTIFY = USERID------ When userid is given then it will notify to the given user. NOTIFY = &SYSUID----- When &SYSUID is given then it will it replace current USERID TIME It is the CPU time given to the job. It tells us how much the time job has to run in the execution queue. Max time for time parameter is TIME =NOLIMIT / 1440(MINS) / MAXIMUM (8.25 MONTHS) When the given time limit exceeds we get S322 --- CPU TIME OUT ERROR Other time related errors. S222-- USER CANCEL THE JOB S122- OPERATO

1. MAINFRAME SREFRESHER
JCL PART-2
( KEYWORD PARAMETRS )
JANAKI RAM SOMISETTY

2. MAINFRAMES REFRESHER PART-2 JCL
 CLASS
 It is used to assign the properties to the job. Suppose if
you submit at the job at the same time which job has to
run first time and which job has to run 2nd time and so
on will be decided by class parameter.
 Note This class parameter priority is set by MVS Admin
Team
 It has single character from A-Z
 Each class has properties on resources over the other
classes

3. MAINFRAMES REFRESHER PART-2 JCL
 Real Time Examples
 Class = P----- Production Class
 Class = M---- Model/UAT Class
 Class = I ----- SIT Class
A – Short Running Class
B – Long Waiting Class
C – Long Running Class
In test region more users submit their jobs, so more classes
required.
In SIT/UAT/PROD most of jobs are submitted one after the
other.

4. MAINFRAMES REFRESHER PART-2 JCL
 MSGCLASS
 It is another keyword parameter which is used to route
diagnostic messages i.e (pass or fail) to specify destination.
 Destination can be auxiliary , printer and spool
 EX
 MSGCLASS = A ----------- SPOOL
 MSGCLASS = B ---------- PRINT
 MSGCLASS = C ---------- SAR TOOL

5. MAINFRAMES REFRESHER PART-2 JCL
 MSGLEVEL
 It is another keyword parameter, which is used to control
volumes of the messages .
 Message level contains of two sub parameters
(STMTS,MSGS)
 STMTS is used to specify type of message, where as
 MSG is used to specify status of job i.e normal or abnormal.

6. MAINFRAMES REFRESHER PART-2 JCL
 STMTS CONSISTS OF 0,1,2
 0 -- Is for job related messages
 1-- Is for all messages
 2- Is for DD or activity related
 MSG CONSISTS OF 0,1
 0 --- Normal
 1--- Abnormal
By default (1,1)

7. MAINFRAMES REFRESHER PART-2 JCL
 PRIORITY
 It is used to set the priority to the jobs by giving specific
values ranging from 0 to 14
 When we have multiple jobs with same class parameter
then the priority comes in to consideration.
 PRTY = 14 -- Highest Priority
 PRTY = 0 --- Lowest Priority

8. MAINFRAMES REFRESHER PART-2 JCL
 EX
 Job1 Job2 Job3
Class=X, Prty=7 Class=X,Prty=6 Class=X,Prty=9
Then the job swill be executed in the following sequence job3,
job1 and job 2. When have CLASS,PRTY parameters same for
all jobs then JOBID comes into consideration. JOBLIB is
generated by job entry subsystem (JES), it is the processor in
MVS.

9. MAINFRAMES REFRESHER PART-2 JCL
 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 spool.
It has two methods.
 NOTIFY = USERID------ When userid is given then it
will notify to the given user.
 NOTIFY = &SYSUID----- When &SYSUID is given then
it will it replace current USERID

10. MAINFRAMES REFRESHER PART-2 JCL
 TIME
 It is the CPU time given to the job. It tells us how much the time job
has to run in the execution queue.
 Max time for time parameter is
 TIME =NOLIMIT / 1440(MINS) / MAXIMUM (8.25 MONTHS)
 When the given time limit exceeds we get
 S322 --- CPU TIME OUT ERROR
 Other time related errors.
 S222-- USER CANCEL THE JOB
 S122- OPERATOR CANCEL THE JOB

11. MAINFRAMES REFRESHER PART-2 JCL
 REGION
 It is used to allocated space for entire job to run.
 Maximum value for region parameter is
 REGION = 0 M / 0 K
 Region related abends S80A / S804 / S822

12. MAINFRAMES REFRESHER PART-2 JCL
 RESTART
 It is used to restart the job from from particular step by
mentioning the step name.
 Syntax
Restart = Step name
 For Procedure
RESTART = JOBSTEP NAME. PROCSTEP NAME

13. MAINFRAMES REFRESHER PART-2 JCL
 TYPERUN
 It is used for syntax error checking.
Syntax
TYPRUN = SCAN It checks for syntax errors without the job
execution . If there are any syntax error they are notified in
spool.
TYPRUN = HOLD It checks for syntax errors if there are any
syntax errors they are notified in spool, if there are no syntax
errors the job will be placed in HOLD state and the HOLD state
should be released by the operator (MVS admin).
TYPRUN = COPY This is default option, the entire JCL will be
copied to JESJCL because of this option.

14. MAINFRAMES REFRESHER PART-2 JCL
 COND
 It is used to execute or bypass the particular step in the
job.
 It can be coded at both JOB level and STEP level.
 Coding the ‘COND’ parameter at step level is more
popular.
 If condition is true then the step will be bypass and if the
condition is false then the step will be executed.

15. MAINFRAMES REFRESHER PART-2 JCL
 Syntax
 COND=(RC,OPERATOR,STEPNAME) If we don’t mention
any step name , then the Return Code (RC) of all previous
steps will be compared.
 COND=ONLY The step will be executed if any of the previous
steps are abended. We code it only once in a JOB.
 COND=EVEN The step will be executed independent of other
steps. We code this multiple times in our JOB.
Note If we want to bypass a particular step then , code
condition as COND = (00,LE)