Diagnostic aids for single systems and data sharing

Use dumps, traces, error messages, SYS1 service aids, and -DISPLAY command output to diagnose problems that involve a single Db2 subsystem or a data sharing group.

One of the most useful diagnostic aids that Db2 provides is the SVC memory dump title. For most problems, this title provides enough information to build a keyword string.

For some problems, one or more memory dumps, SYS1.LOGREC entries, and trace tables might need to be reviewed.

For some failures, log records might be needed from before and at the time of failure. Always keep the Db2 archive log data sets until it is certain that no problems occurred for which they might be needed.