7. PARAMETERS › 7.3 Unit-level Parameters › 7.3.1 Processing Options (SNTOPS) › 7.3.1.15 DETAIL Tape Processing Overview › 7.3.1.15.2 Overview of JCL Customization Parameters

7.3.1.15.2 Overview of JCL Customization Parameters

 The JCL for DETAIL tape data sets is constructed using tape-
 related parameters that are specified in prefix.MICS.PARMS(JCLDEF) and
 prefix.MICS.PARMS(cccOPS).
 
 Each DETAIL tape data set has a unique DD in the component
 step.  The JCL for each DETAIL tape data set is customized
 according to user-specified JCL parameters such as the number
 of generation data group (GDG) entries that are maintained, unit
 names, volume count, retention, and expiration dates, and
  System Managed Storage (SMS) keywords.For example,
 STORCLAS=storclas.
 
 CA MICS provides a hierarchical means to specify tape-related
 JCL parameters suitable for each data center.
 
 The hierarchy, as it applies to DETAIL tape specification, is
 described:
 
 o Unit Level - TAPEPARM and TAPESMSPARM
 
   Used for all tape data sets created by all components in
   the unit.  Specified in prefix.MICS.PARMS(JCLDEF)
 
 o Unit DETAIL Tape Level - DETAILTAPEPARM and
                            DETAILTAPESMSPARM
 
   Used for all DETAIL tape data sets created by all
   components in the unit.  Overrides choices that were 
   made in TAPEPARM and TAPESMSPARM.  
   Specified in prefix.MICS.PARMS(JCLDEF).
 
 o Component Level - DETAILTAPEPARM and DETAILTAPESMSPARM
 
   Used for all DETAIL tape data sets created by a particular
   component.  Overrides all choices that were made in JCLDEF.
   Specified in prefix.MICS.PARMS(cccOPS), where ccc
   represents the component.
 
 o File Level - TAPEfff and TAPEfffSMS
 
   Used for a particular DETAIL tape data set.  The fff
   identifies the specific DETAIL file.  Overrides all choices
   made in JCLDEF and choices that were made with 
   DETAILTAPEPARM and DETAILTAPESMSPARM in 
   prefix.MICS.PARMS(cccOPS).  Specified in 
   prefix.MICS.PARMS(cccOPS), where ccc represents the
   component.
 
 The JCL parameter specification hierarchy that is used for DETAIL
 tape customization is shown graphically in the following
 diagram:



               DETAIL Tape JCL Parameter Hierarchy

+---------------------------+
| prefix.MICS.PARMS(JCLDEF) |
+---------------------------+
|                           |
| +----------------+        |
| |    TAPEPARM    |----------> Defaults for all tape
| |   TAPESMSPARM  |        |   data sets in unit
| +-------+--------+        |
|         |                 |
|         +--+              |
|            |              |
|            V              |   Defaults for all
|    +-------+---------+    |   DETAIL tape data sets
|    | DETAILTAPEPARM  |------> in unit.  Overrides
|    |DETAILTAPESMSPARM|    |   TAPEPARM and
|    +-------+---------+    |   TAPESMSPARM choices.
|            |              |
+------------|--------------+
             |
             |
             V
+---------------------------+
| prefix.MICS.PARMS(cccOPS) |
+---------------------------+
|                           |   Defaults for all
| +-----------------+       |   DETAIL tape data sets
| | DETAILTAPEPARM  |---------> for the component.
| |DETAILTAPESMSPARM|       |   Overrides all choices
| +-----------------+       |   made in (JCLDEF).
|          |                |
|          +--+             |
|             |             |
|             V             |    Individual data set
|     +-------+--------+    |    choices for one file
|     |    TAPEfff     |-------> (fff).  Overrides
|     |   TAPEfffSMS   |    |    all other tape
|     +----------------+    |    specifications.
|                           |
+---------------------------+
              |
              V

 // DD statements and GDG generation