DFSPBxxx member of the IMS PROCLIB data set

Use the three forms of the DFSPBxxx member of the IMS PROCLIB data set, DFSPBDBC, DFSPBDCC, and DFSPBIMS, to specify execution parameters for the DBCTL, DCCTL, and DB/DC control regions, respectively.

Each DFSPBxxx member of the IMS PROCLIB data set controls a different IMS environment:
DFSPBDBC
DBCTL environment
DFSPBDCC
DCCTL environment
DFSPBIMS
DB/DC environment

You can use the IMS Syntax Checker to modify these members of the IMS PROCLIB data set.

The DFSPBxxx member consists of one or more 80-character records. Only characters 1-71 are used as input. Data in characters 72-80 is ignored. A parameter must be specified in its entirety on a single line. You cannot continue to the next line to complete the parameter specification.

Each record contains either:
  • A comment, marked by an '*' in statement column 1.
  • One or more execution parameters in the following form: 
    KEYWORD=value

    The parameters are separated by commas (,). Each parameter can be preceded by a space or the comma following the prior parameter value. You can have blanks on either, both, or neither side of the comma that separates keyword strings.

  • One execution parameter 
    KEYWORD=value
    followed by a comment. The comment is separated from the parameter by one or more blanks. A comment may contain any characters except the equal sign (=).
Example: 

AUTO=,

DFSPBDBC

This member applies only to a DBCTL environment. It allows you to specify DBCTL control region execution parameters. The parameters that you specify in this member override those specified in the stage 1 macros.

You can place several DFSPBDBC members in the IMS PROCLIB data set by replacing the member name DFSPBDBC with DFSPBxxx, where xxx must be three alphanumeric characters. The RGSUF= keyword in the DBC procedure specifies the xxx suffix to be used during startup of the DBCTL control region.

For a list of parameters associated with DFSPBDBC, see DBC procedure. For a list of parameter descriptions, see Parameter descriptions for IMS procedures.

DFSPBDCC

This member applies only to a DCCTL environment. It allows you to specify DCCTL control region execution parameters. The parameters that you specify in this member override those specified in the stage 1 macros.

You can place several DFSPBDCC members in the IMS PROCLIB data set by replacing the member name DFSPBDCC with DFSPBxxx, where xxx must be three alphanumeric characters. The RGSUF= keyword of the DCC procedure provides the xxx suffix to be used during startup of the DCCTL control region.

For a list of parameters associated with DFSPBDCC, see DCC procedure. For a list of parameter descriptions, see Parameter descriptions for IMS procedures.

DFSPBIMS

This member applies only to a DB/DC environment. It allows you to specify DB/DC control region execution parameters. The parameters that you specify in this member override those specified in the stage 1 macros.

You can place several DFSPBIMS members in the IMS PROCLIB data set by replacing the member name DFSPBIMS with DFSPBxxx, where xxx must be three alphanumeric characters. The RGSUF= keyword of the IMS procedure provides the xxx suffix to be used during startup of the DB/DC control region.

For a list of parameters associated with DFSPBIMS, see IMS procedure. For a list of parameter descriptions, see Parameter descriptions for IMS procedures.