IMS data sets
Use the data set information to troubleshooting and learning about the IMS.
The attribute values for each data set are provided and
include:
The DSNAME high-level qualifier for DLIB, SYSTEM,
and EXECUTION data sets must be specified on the NODE parameter of
the IMSGEN macro. TLIB data sets are included in the NODE parameter
for SYSTEM data sets. The IMS online
change function requires multiple copies of the system data sets IMS.ACBLIB, IMS.MODBLKS, and IMS.FORMAT.
The base copies of these data sets are called staging libraries,
and the copies form active and inactive libraries. - DSORG
- Data set organizationRestriction: IMS supports partitioned data sets extended (PDSEs) for only these libraries: MODBLKS, PGMLIB, SMPLTS, and SDFSJLIB.Note: The External Subsystem Attach Facility (ESAF) supports PDSE load library data sets.
- DSNTYPE
- Data set name type
- RECFM
- Record format
- LRECL
- Logical record length
- BLKSIZE
- Block size