JCL-specific environment variables

This topic lists environment variables relate to configuring the JCL environment.

Variable	Description
CASRDO44_NEWSUB	Enables access to JCL files held on the local machine on which the browser is running. CASRDO44_NEWSUB=Y\|N
CASSPOOL_LOCK_RETRY_COUNT	If errors are experienced by the spool module, the number of times it retries to obtain a record lock can be adjusted using this environment variable. The default value is 20. CASSPOOL_LOCK_RETRY_COUNT=`num-retries`
ES_ALLOC_EXPAND	The default value is Y, which expands an environment variable when used to specify an allocation path. Set to N to override this behavior, which is to not expand the variable used in the path. ES_ALLOC_EXPAND=Y\|N
ES_ALLOC_OVERRIDE	The location of a file containing rules that determine where new data sets are created. This applies only to JES and batch files, and not CICS, IMS, or Web services files. ES_ALLOC_OVERRIDE=`rules-file`
ES_JESYSMSG_OUTPUT	The status of the system messages spool files (JESYSMSG) is set to Output, rather than Out Hold. ES_JESYSMSG_OUTPUT=Y\|N
ES_JESYSMSG_RESTRICTED	When the status of the system message spool files are set to Output, by using ES_JESYSMSG_OUTPUT, you can hold back spool files based on their class, by using ES_JESYSMSG_RESTRICTED. ES_JESYSMSG_RESTRICTED=`class-name/number` To specify multiple class names or numbers, enter them as a string; for example, ABC123 for classes A, B, C, 1, 2, & 3.
ES_JES_BYTES	Maximum number of bytes to output in a job before taking the action specified (either cancelling the job, cancelling the job and dumping memory contents, or issuing a warning message). ES_JES_BYTES=`num-bytes`
ES_JES_CARDS	Maximum number of cards to output in a job before taking the action specified (either cancelling the job, cancelling the job and dumping memory contents, or issuing a warning message). ES_JES_CARDS=`num-cards`
ES_JES_DISABLE_RESTART_FLUSH	Indicates whether a region's jobs are moved from the Active queue to the Complete queue when a region is restarted. ES_JES_DISABLE_RESTART_FLUSH=Y\|N
ES_JES_LEVEL	Sets the default JCL type. ES_JES_LEVEL=JES2\|JES3\|VSE
ES_JES_LINES	Maximum number of lines to output in a job before taking the action specified (either cancelling the job, cancelling the job and dumping memory contents, or issuing a warning message). ES_JES_LINES=`num-lines`
ES_JES_OUTLIM	Maximum number of lines to output to a particular data set before calling the user exit, processing any global limits, and then cancelling the job. ES_JES_OUTLIM=`num-lines`
ES_JES_PAGES	Maximum number of pages to output in a job before taking the action specified (either cancelling the job, cancelling the job and dumping memory contents, or issuing a warning message). ES_JES_PAGES=`num-pages`
ES_JES_PARM_INIT_LOW	When set to Y, the parameter string passed to a program executed by JCL is initialized to low-values. The default is N, which is to initialize it to spaces. ES_JES_PARM_INIT_LOW=Y\|N
ES_JES_RESTART	Enables JCL restart processing. ES_JES_RESTART=Y\|N
ES_JES_SPOOL_ORDER	The order in which the spool list is displayed when you first open ESMAC. ES_JES_SPOOL_ORDER=1\|`any` 1 Spool list displayed in descending order. any Any value other than 1 displays the spool list in ascending order. This is the default.
ES_PL1_MFFH_JCL	Enables you to run Open PL/I programs that access JCL data definitions. The default value is N. ES_PL1_MFFH_JCL=Y\|N
ES_SAM_ESDS	Under VSE, when this is set to Y, opening an OUTPUT of a reusable ESDS file resets the file when the DISP is not specified in the DLBL statement. ES_SAM_ESDS=Y\|N
ES_SSTM_CICS	Location of the JCL used to initialize the SSTM CICS environment. ES_SSTM_CICS=`file-location`
ES_SSTM_IMS	Location of the JCL used to initialize the SSTM IMS environment. ES_SSTM_IMS=`file-location`
ES_SSTM_JOB_FLUSH_ACTIVE	By default, this is set to N. When set to Y, causes a CICS SSTM job to be removed from the Active queue when the region shuts down.
ES_SYSOUT_HOLD	Sysout held classes. ES_SYSOUT_HOLD=???
ES_USR_DFLT_JES	Allows you to override the default user when no user is logged on for JES authentication. ES_USR_DFLT_JES=Y\|N???
JES_PRINT_SPOOL_MSG	Specifies the disposition of the spool data set printing message (JES000029I). JES_PRINT_SPOOL_MSG=CONSOLE\|LOG\|SILENT CONSOLE The console.log file (default). LOG A special log file named PRNT_SPL_MSG_YYYY_MM_DD.DAT where YYYY_MM_DD is the current date. This file resides in the same directory as the spool files, and a new file is created every day. SILENT No messages. Use this option with caution, as you will have no audit log of your spool data sets. Note: This environment variable is introduced for high print load users, where print messages to the console impact system performance.
MFALLOC_PCFILE	When set to Y, which is the default, it will cause a catalogued file to be created if DSORG=PS is provided in the DCB parameters. MFALLOC_PCFILE=Y\|N
MF_ALIAS	Specifies program aliases. Each set (pair) is 16 characters long - 8 characters for the program-name, and 8 characters for the alias. You can specify up to 10 pairs. This list is searched first and thus can potentially override the built-in list. If not found, the built-in alias table is searched. An entry shorter than 8 characters must have trailing spaces extending its length to 8 characters. MF_ALIAS=`program-name1` `alias1` [`program-name2` `alias2`] ...[`program-name10` `alias10`]
MF_CHARSET	Specifies which character set an enterprise server is to use. MF_CHARSET=A\|E\|ASCII\|EBCDIC The default value is ASCII.
MF_DUPJOBS	Enables jobs with identical names to run. MF_DUPJOBS=Y\|N The default value is N.
MF_FALLTHRUCHECK	Specifies that MSS is to check that the main COBOL program ends by executing a GOBACK or STOP RUN. MF_FALLTHRUCHECK=Y\|N The default value is Y.
MF_JESPWR_EXIT	Used to pass JES2 and VSE PWR statements to the user exit MFJESPWR. If this environment variable is set, the JCL execution engine will call the exit program, MFJESPWR, whenever a JES2 or VSE PWR statement is encountered. It passes the contents of the JCL record plus Job and Job Step information. A sample MFJESPWR.cbl is included with the product. MF_JESPWR_EXIT= Y\|N The default value is N.
MF_JCL_AUDIT	Specifies that the audit log records audit information when a catalog entry is deleted. MF_JCL_AUDIT=DELT\|DELJ\|DELT,DELJ DLET Logs audit information each time an ESMAC/CAS utility deletes a catalog entry. DLEJ Logs audit information each time a step in a JCL job deletes a catalog entry. DLET,DLEJ Logs audit information each time either an ESMAC/CAS utility or a JCL job step deletes a catalog entry. The default is that this is not set.
MF_MFA	Specifies what data set catalogs are to be searched. MF_MFA=ALL\|RJSE `ALL` - Search for data sets first in the local catalog, and if not found, on the mainframe (default). `RJSE` - Search for data sets in the local catalog only. No mainframe is performed.
MFJ_REPRO_EMPTY	Enables or disables the ability for the IDCAMS REPRO action to copy from a pristine VSAM file. MFJ_REPRO_EMPTY=Y\|N When set to Y, the resulting file will be empty. The default value is N, which will produce a JCLAM0150S error when attempted.
MFJSENGINE	Specifies which sort engine the utility MFJSORT is to emulate. MFJSENGINE=DFSORT\|SYNCSORT The default value is DFSORT.
MF_MVSJOB	Sets the number at which a job starts and finishes. MF_MVSJOB=`<lower value>`{-\|+}`<upper value>` Where: `<lower value>` Number at which a job starts. Contains 7 digits - for example, 0000001 - Sets the values but only on the first startup of the region. + Reset the values to these new ones each time the region is started. `<upper value>` Upper job number. Contains 7 digits - for example, 9999999 For example: set MF_MVSJOB=0000010+0000100 This resets the values to start with job number 10 and run through to job number 100. When the upper limit has been reached you receive a message: All job numbers in the range 0000010:0000100 are in use At this point you need to remove some jobs from the spool - you can use the spool housekeeping functions to do this. This environment variable can be used to enable a 7-digit Job number limit. If the <upper value> mentioned is greater than 99999, then 6+ digit job number support is enabled. The maximum value that can be set is 9999999. Tip: To revert to 5-digit job number support, set MF_MVSJOB=`<low number>`+`<high number>`, where `high number` is less than 0099999, and ensuring that the + sign is used to separate the low and high values. If a value set using this variable is not valid, the default values of <0001000>{-\|+}<0099999> are set.
MF_NODD	Specifies what action MSS is to take at run time if a job step uses a file that has not been allocated. MF_NODD=A\|R A Abend the program. This is the default. R Returns file status 3/5.
MF_PCRENAME_LAX	When an MVS data set is renamed, the associated physical file is normally renamed only if it is in the Default Allocation data set location. MF_PCRENAME_LAX=Y\|N Y Enable physical files in other locations to be renamed if the cataloged name is changed. N Only physical files in the default allocation data set location are renamed. This is the default value.
MF_RCCF	Enables Remote Job Step Execution (RJSE). MF_RCCF=DELETEJOB\|KEEPJOB
MF_SMS	Enables support for SMS data classes. SMS is IBM's Storage Management Subsystem. MSS provides emulation for SMS data classes only. To enable DATACLAS support this variable needs to be set ON in addition to setting MFUSERCAT_NODE=SYSMFE1. MF_SMS=ON\|OFF The default value is OFF.
MF_SPOOL_HK_TESTDATE	Overrides the normal date for the spool housekeeping. MF_SPOOL_HK_TESTDATE=YYYYMMDD
MF_UCC11	Note: This environment variable works independently of the JCL RESTART parameter. Enables emulation of UCC11, a third party add-on to the mainframe that affects data set disposition processing. If UCC11 is enabled, a data set disposition of NEW is accepted even if the data set already exists. MF_UCC11=Y\|N\|M Y JCL job re-start functionality is enabled. When restarting a job with DISP=(NEW,CATLG), it will not result in job failure due to the data set already being cataloged. M On restart, a catalogued data set is presumed to have an initial disposition of MOD rather than NEW. As a result, any new data is appended to the existing data set. N JCL job re-start functionality is disabled. This is the default value.
MF_USESCA7	Specifies that MSS accepts CA7 Scheduler control statements as comments rather than diagnosing them as errors. CA7 Scheduler control statements begin with # in column 1. MF_USESCA7=ON\|OFF The default value is OFF.
MFJ_INPUTDS_ERROR	When set to N, will cause IEBDG, IEBGENER, IEBCOMPR, and DFSORT and ICETOOL emulation to treat missing input files as though they were present but empty. MFJ_INPUTDS_ERROR=Y\|N The default value is Y.
MFREXX_CHARSET	Specifies the character set used by the REXX engine when working with hexadecimal strings or performing string comparisons. MFREXX_CHARSET=A\|E A ASCII. This is the default value. E EBCDIC.
MFREXX_CONCAT	Specifies one or more characters to be used for the CONCAT operator in addition to REXX's default, which is "\|\|". MFREXX_CONCAT=char-spec One or more characters for each operator; each character you specify is used in addition to the default operator. Each additional character must be defined within single or double quotes, or in hexadecimal. Separate multiple characters with a space or a comma. Any error in the specification of the additional characters, including the specification of alphabetic or numeric characters, results in the environment variable being ignored.
MFREXX_LSEQ_RECSIZE_MAX	Specifies the record length for the REXX EXECIO command when reading or writing a line sequential file that has been cataloged with a record length of zero. MFREXX_LSEQ_RECSIZE_MAX=rec-length rec-length Record length to use. The minimum value you can specify is 255. Specifying an invalid value, or a value less than 255, results in the default value (255) being used.
MFREXX_NOT	Specifies one or more characters to be used for the NOT operator in addition to REXX's default, which is "¬". MFREXX_NOT=char-spec char-spec One or more characters for each operator; each character you specify is used in addition to the default operator. Each additional character must be defined within single or double quotes, or in hexadecimal. Separate multiple characters with a space or a comma. Any error in the specification of the additional characters, including the specification of alphabetic or numeric characters, results in the environment variable being ignored.
MFREXX_OR	One or more characters to be used for the OR operator in addition to REXX's default, which is "\|". MFREXX_OR=char-spec char-spec One or more characters for each operator; each character you specify is used in addition to the default operator. Each additional character must be defined within single or double quotes, or in hexadecimal. Separate multiple characters with a space or a comma. Any error in the specification of the additional characters, including the specification of alphabetic or numeric characters, results in the environment variable being ignored.
MFSYSCAT	The location of the JES system catalog. MFSYSCAT=cat-file cat-file The fully-qualified location and name of the system catalog file to use.
MFUSERCAT_BASE_LOC	If an entry in MFUSERCAT_LOC only specifies the file name of the user catalog rather than the full path and file name, use this environment variable to specify where these catalogs are located. MFUSERCAT_BASE_LOC=C:\User\catalogs If multiple user catalog files are in the same location - for example, `C:\USERCATALOGS` or `$$MYFILESHARE` - use this environment variable to store that location. Then, you only need to specify the file name of the catalog in MFUSERCAT_LOC.
MFUSERCAT_LOC	The location of the user catalog. MFUSERCAT_LOC=definition-file definition-file The fully-qualified location and name of the data class definition file to use.
MFUSERCAT_NODE	Sets node to enable DATACLAS support. Must be used in conjunction with MF_SMS=ON. MFUSERCAT_NODE=SYSMFE1 This is not set by default.
VSE_STARTUP_CFG	The location of the VSE JCL configuration file. VSE_STARTUP_CFG=config-file config-file The fully-qualified location and name of the configuration file to use.