Reviewing the CICS data sets

Review the list of mandatory and optional data sets to select which ones to create in your CICS regions.

1. You must define the following CICS data sets:

   Data set	DDNAME	Block or CI size (bytes)	Record format	Data set organization
   Auxiliary trace (See Setting up and using auxiliary trace data sets)	DFHAUXT DFHBUXT	4096	F	Sequential
   BTS local request queue. (See ../../com.ibm.cics.ts.doc/dfhp9/topics/dfhp94d.html#dfhp94d)	DFHLRQ	1024 and 2560	VB	VSAM KSDS
   Catalogs (See Setting up and using catalog data sets)	DFHGCD DFHLCD	8192 & 2048	VB	VSAM KSDS
   CSD (See Setting up the CICS system definition data set)	DFHCSD	8192	VB	VSAM KSDS
   Dump (See Defining dump data sets)	DFHDMPA DFHDMPB	32 760 (tape) or 1 track (DASD)	V	Sequential
   Messages and codes (See Defining the CMAC messages data set)	DFHCMACD	—	V	VSAM KSDS
   Temporary storage (See Setting up the temporary storage data set)	DFHTEMP	See Control interval size of temporary data set	N/A	VSAM ESDS
   Transient data extrapartition (See Defining extrapartition data sets)	From the DDNAME option in the resource definition	From the BLOCKSIZE option in the resource definition	From the RECORD FORMAT option in the resource definition	Sequential
   Transient data intrapartition (See Defining the intrapartition data set)	DFHINTRA	See Size of the intrapartition data set	N/A	VSAM ESDS

   Temporary storage and transient data intrapartition data sets use control interval (CI) processing and therefore the record format is not relevant.

2. You must define the following CICS data sets if you plan to use the equivalent functions:

   Data set	DDNAME	More information
   CDBM group command	DFHDBFK	Defining the CDBM GROUP command data set
   CICSPlex SM WUI server HTML template data set	DFHHTML	Specifying the WUI customizable view and menu help data set
   Debugging profiles data sets	DFHDPFMB, DFHDPFMP, DFHDPFMX	Setting up the debugging profiles data sets
   Link3270 bridge	DFHBRNSF	Defining DFHBRNSF
   Sample file FILEA for sample application programs	FILEA	The FILEA sample application programs
   WS-AT directory data set	DFHPIDIR	Defining the WS-AT data set