A minimal trace runs whenever VLF is in control. No actions are needed to request the minimal trace.
To record more than the minimal trace, request full tracing with the TRACE operator command. Note that full tracing can slow system performance. The following table indicates the parameters you can specify on a TRACE CT command. In response to the command, the system does not prompt the operator for a reply.
| Parameters | Allowed on TRACE CT for trace? |
|---|---|
| ON or OFF | One is required |
| nnnnK or nnnnM | No |
| COMP | Required |
| SUB | No |
| PARM | No |
When you turn the full tracing off, the system writes a dump containing the trace records, then resumes minimal tracing.