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For sites in which Control-M/Restart is not installed, Control-M provides a mechanism for automatic implementation of MVS restarts in certain situations. The mechanism, however, requires definition before the original submission of the job. Therefore, it is only useful for jobs in which automatic restart is always desirable (when necessary).
Note: MVS restart is not recommended and must be used with caution. MVS restart does not perform automatic File catalog adjustment, GDG (Generation Dataset Group) adjustment, condition code recapture, abend code recapture, or data set scratching. Unless these functions are manually handled without error, the results of an MVS restart may be unpredictable or damaging.
The mechanism for automatic implementation of MVS restart is the definition of a special OUT condition in the job scheduling definition. The value of the condition is:
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where:
Note: §Restart§ Do not define this type of restart (that is, this OUT condition) if a Control-M/Restart restart is used for the job, or the results may be unpredictable.
This restart is implemented in the following situations if the Control-M monitor ended the job NOT OK (that is, a DO OK did not impact the final status):
When the special OUT condition is defined in the job scheduling definition and the job ends as described above, the Control-M monitor automatically appends the name of the failing step to the OUT condition of the job order. The OUT condition in the job order, that is, as seen in the Zoom screen, therefore appears as follows:
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Before a job is submitted, the Control-M monitor checks the job order for an OUT condition beginning @#–. When the monitor detects condition @#-procstep.pgmstep, it automatically inserts an MVS step in the JCL of the job, so that the job begins from the indicated procstep.pgmstep.
For the job to be restarted from procstep.pgmstep, the job must be rerun. This can be the result of a rerun, manual or automatic, or the result of a cyclic job run.
The @#– procstep.pgmstep value appearing in the Zoom screen can be deleted, in which case restart is not performed, or changed to a different procstep.pgmstep, so that restart begins from a different step.
Even if a special OUT condition (name or prefix @#– ) is not defined in the job scheduling definition, an MVS restart can be implemented by specifying OUT condition @#– procstep.pgmstep (for the desired restart step) in the Zoom screen.
Note: It is also possible to specify OUT condition @#– procstep.pgmstep in the job scheduling definition, but this is not recommended. If @#– procstep.pgmstep is specified in the job scheduling definition, the job always begins at the specified step, never at the first step, even on the initial run.
When using MVS job restart, every step in the job must have a unique procstep.pgmstep name. Control-M does not check for duplicate stepnames.
The following is an example of a job set for Automatic Restart, using Control-M only, in case of abend.
Note: §Restart§ Do not use this type of restart when Control-M/Restart restart is used for the job, or results may be unpredictable.
Figure 406 Example - Automatic Restart - Control-M Only
JOB: EBDUPDT2 LIB CTM.PROD.SCHEDULE TABLE: EBDPROD
COMMAND ===> SCROLL===> CRSR
+-------------------------------------------------------------------+
MEMNAME EBDUPDT2 MEMLIB GENERAL
OWNER SYS1 TASKTYPE JOB PREVENT-NCT2 DFLT N
APPL EBD GROUP EBD-PRODUCTION
DESC EBD PRODUCTION UPDATE OF DEPOSITS
OVERLIB STAT CAL
SCHENV SYSTEM ID NJE NODE
SET VAR
CTB STEP AT NAME TYPE
DOCMEM EBDUPDT2 DOCLIB CTM.PROD.DOC
====================================================================
DAYS DCAL
AND/OR
WDAYS 2,3,4,5,6 WCAL
MONTHS 1- Y 2- Y 3- Y 4- Y 5- Y 6- Y 7- Y 8- Y 9- Y 10- Y 11- Y 12- Y
DATES
CONFCAL SHIFT RETRO Y MAXWAIT 08 D-CAT
MINIMUM PDS
DEFINITION ACTIVE FROM UNTIL
===================================================================
IN DEPOSITS PREV
CONTROL
RESOURCE
PIPE
FROM TIME + DAYS UNTIL TIME + DAYS
DUE OUT TIME + DAYS PRIORITY SAC CONFIRM
TIME ZONE:
===================================================================
OUT DEPOSITS ODAT + @# ODAT -
COMMANDS: EDIT, DOC, PLAN, JOBSTAT 11.17.00