FM/IMS Load step description

The FM/IMS Load step has the following flows:

Figure 1. Flows for Load (ILB) step
This diagram shows the inputs to and outputs from the Load (ILB) function. The inputs are FMN1JIN, FMNIMSIN, and LOAD. The outputs are REPORT, SYSPRINT, IMS Database data sets, and IEFRDER (DLL).
FMN1JIN
Points to the FM/IMS skeleton library. This DD statement is only used when you are loading data into HALDB databases.
FMNIMSIN
Contains the control statements for the Load. These control statements are discussed below.
REPORT
Defines the output data set for the Database Load Summary report.
IMS database data sets
In DLI mode, FM/IMS includes DDs for each of the IMS database data sets associated with the IMS database being loaded. If the database has logical relationships, the data sets for the logically related databases need to be included.
LOAD
Contains the IMS segments that are to be loaded by the function. In the job generated by FM/IMS, this is a temporary data set created by the sort step.
SYSPRINT
Defines the output data set for:
  • The messages that the Load issues.
  • The Load Diagnostic report that lists the IMS segments that could not be loaded.
IEFRDER
Defines the IMS log data sets that the Load is to use. Only required when running in DLI mode.