LAN Configuration and Management Manual

SCF Commands for the SLSA Subsystem
LAN Configuration and Management Manual—520469-012
4-144
TRACE PIF Command
SELECT select-spec
select-spec is one of the following specifications:
{ keyword }
{ ( keyword [ , keyword ] ) }
{ number }
{ ( number [ , number ] ) }
keyword
is subsystem-specific. ALL is the only keyword that you can use with the
TRACE PROCESS command.
number
is the numeric value that a keyword represents. The numeric value of ALL
is -1.
TO file-spec
specifies the file to which trace information is to be written. The file might have
been previously created as an unstructured file with file code 830. An old file is
purged of data before the trace is initiated. If the file does not exist, a file is created
with an extent size based upon the number of pages specified in the PAGES
option.
WRAP
specifies that when the trace disk file end-of-file (EOF) mark is reached, trace data
wraps around to the beginning of the file and overwrites any data there.
Considerations

If TO file-spec is specified, a new trace is initiated unless the file-spec is invalid,
the file cannot be opened, or trace is already active for the I/O process.

If TO file-spec and STOP are both omitted, the TRACE command modifies the
trace currently in progress, if any.

If TO file-spec is omitted and STOP is specified, the TRACE command stops the
trace currently in progress, if any.
Example
The following example starts a trace for all traceable items in $ZZLAN:
TRACE PROCESS $ZZLAN, TO $M2.SUBV.TRFIL1