Introduction

The SMPCSI and associated data sets contain basically two types of information:

Information added as a result of installing SYSMODs. Generally, this type is managed completely by SMP/E; that is, appropriate entries are added, changed, or deleted as SYSMODs are installed. You need not make any modification to the database to record this information. You may, however, need to make changes to do the following:
- Record changes made outside SMP/E
- Delete information no longer required
- Recover from an SMP/E or system error
Information added by you to control the installation of SYSMODs. You must manually add this information to the database before processing any SYSMODs. You may later need to modify the information to reflect new processing information.

The UCLIN command helps you to make these changes.

To use UCLIN effectively, you should have a detailed understanding of how it works and what it can do. SMP/E for z/OS Commands has information about UCLIN. SMP/E for z/OS Reference provides details about SMP/E data set entries. Read them before trying to run any UCLIN commands. The following topics describe, at a very high level, what UCLIN is.