Using MVS Hardware Configuration Definition (HCD)

The MVS™ hardware configuration definition (HCD) provides an interactive, panel-driven dialog that you can use to define hardware configurations. HCD also provides an option that creates JES3 initialization stream data for use in step 2 of the initialization stream checker utility. Perform the following steps to obtain the JES3 configuration data using HCD:
  1. Select the "Activate Configuration Data" option on the HCD primary panel. HCD next displays the JES3 panel.
  2. Select the "Create JES3 Initialization Stream Data" option from the JES3 panel.
  3. Specify the following items on the JES3 panel:
    • Data set name (This name will be used later in the STG1CODE DD when running IATUTIS.)
    • Eight character MVS configuration identifier
    • Eligible device table (EDT) identifier
You can also create the initialization stream data using a batch job like the following:
//jobname JOB 'ACCTINFO','NAME',MSGLEVEL=(1,1),
// MSGCLASS=R
//BUILD EXEC PGM=CBDMGHCP,PARM='CONFIG,JES,cccccccc,ee'
//HCDIODFS DD DSN=SYS0.IODFxx,DISP=SHR
//HCDDECK DD DSN=dsname(member),DISP=OLD 
where:
  • xx is the suffix of the I/O definition file to be used as the basis for this data.
  • cccccccc is the eight character MVS configuration identifier.
  • ee is the eligible device table (EDT) identifier.
  • dsname is the data set name to contain the output data (and to be used later in the STG1CODE DD when running IATUTIS).
  • member is the member of the output data set to contain the data for a particular processor.
You must create this data for all processors defined in the initialization stream. Each member has the same name as one of these processors.

MVS places the configuration data in the data set you specify. IBM® recommends that you place the data into a partitioned data set (PDS) because the initialization stream checker requires, as input, a PDS whose member name(s) match the names of the mains that you specify in the JES3 initialization stream.

See z/OS HCD User's Guide for information about using the HCD dialog.