1 COPYIO
 Copys the dump buffer from the driver area.
1 COPYDMP
 Format:
 
       COPYDMP  <file name>
 
 Copys the dump file and returns a dump buffer that has the same format
 as one produced from a copyio.
1 DUMP
 Displays structures in the dump buffer.  Copyio is called to get new
 copy of the dump buffer.
2 DDB
 Displays the DDB.
2 UCB
 Displays the UCB.
2 TRACE
 Displays the trace structure.
2 PTCB
 Displays the packet type code blocks.
2 IOQ
 Displays the IO queue entries.
2 ALL
 Displays all the structures in the dump buffer.
1 REDUMP
 Re-displays the dump buffer.  This command has the same options as the
 DUMP command.
1 SET
 Sets CDTrace parameters.
2 WIDTH
 Set the number of columns for the output device.
2 CONTROLLER
 Set the controller that you want to dump.
2 UNIT
 Set the CD device unit number that you want to dump.
2 PTC
 Set the packet type code that you want to dump.
2 OUTPUT
 Set the output device that you want to get all CDTrace displays.
2 ALL
 Set all CDTrace parameters.
1 DCL
 Spawns a single or a group of DCL lines.  Works like MCR.
1 EXIT
 Exits the CD Trace utility.
1 TIME
 Displays current system time.
1 SHOW
 Displays CDTrace parameters.  This command has the same options as the
 SET command.
1 HELP
 Displays help information.
