The following tables indicate the parameters you can specify on TRACE CT commands and a REPLY.
| Parameters | Allowed on TRACE CT for trace? |
|---|---|
| ON, nnnnK, nnnnM, or OFF | One is required |
| COMP | Required |
| SUB | No |
| PARM | Yes |
| Parameters | Allowed on TRACE CT for writer? |
|---|---|
| WTRSTART or WTRSTOP | One is required, if a writer is being used |
| Parameters | Allowed on REPLY for trace? |
|---|---|
| ASID | Yes |
| JOBNAME | Yes |
| OPTIONS | Yes |
| WTR | Yes |
You can change options while a SYSIEFAL trace is running. However, to change the buffer size immediately, you have to stop the trace and restart it with the new buffer size. If the trace is not stopped and restarted, the buffer size will be changed when the current set of buffers has filled up and a new set is acquired.