Source index records are added when GTF trace records are consolidate using the IPCS COPYTRC subcommand. The records identify the system that produced the GTF trace record.
Record Format After Each Trace Record, if the GTF trace records are consolidated with the IPCS COPYTRC subcommand:
SOURCE INDEX: 01The source index record indicates that the GTF trace record was produced by the system with identifier 01. Identifiers include the system name and the trace options in effect for that system. The identifiers are listed at the top of the IPCS report.