Operational considerations
The output records of IRRDBU00 are determined by the structure
of the RACF® database. The utility
unloads all profiles in the database. It does not unload all fields
in each profile and treats some fields in a special way.
- Encrypted and reserved fields are not unloaded.
- Fields that contain installation data are unloaded exactly as they appear in the database, with the exception of CSDATA fields.
- Fields in the CSDATA segment are unloaded according to the data type defined within each field.
When possible, fields that contain UTF-8 data are
translated to EBCDIC using the code page specified in the FACILITY
class profile IRR.IDIDMAP.PROFILE.CODEPAGE if defined and contains
a valid code page. Otherwise, code page IBM-1047 is used. For
more details, see Restrictions for UTF-8 data values.
The maximum length of unloaded data for most fields is 255 bytes. However, the entire length of data is unloaded for the following fields:
- Up to 1023 bytes for the HOME and PROGRAM fields in the OMVS segment of a user profile.
- Up to 1023 bytes for the HOME, PROGRAM, and FSROOT fields in the OVM segment of a user profile.
- Up to 1100 bytes for each field in the CSDATA segment of a user or group profile.
See z/OS Security Server RACF Macros and Interfaces for the conversion rules of the database unload utility.
The database unload utility uses the supplied class descriptor table (ICHRRCDX), the installation-defined class descriptor table (ICHRRCDE), and the dynamic class descriptor table, as it unloads profiles. If your database is imported from another system, you might also have to import ICHRRCDX and ICHRRCDE and create new dynamic classes.
The database unload utility unloads a class only when both of
the following conditions are true:
- There is an entry for the class in either the ICHRRCDE, ICHRRCDX, or the dynamic class descriptor table on the system running the utility
- The range table on the system running the utility correctly identifies the data set where the profiles are located.
To correlate the RACF profiles with the data unloaded by the utility, see z/OS Security Server RACF Macros and Interfaces.