The cable and terminal appears fine as I unplugged the DB9 plug from the Sun StorEdge 3511No one Sun servers have same connector as 3511. ( DB9 femail). So possible point of problem - gender changer.
and plug into another Sun server and just change the baud rate then I can get response from the Sun server,
but unplug it and plug it back to the Sun StorEdge 3511 and change back to 38400 and no response.
Also I got a stupid question on a CSM200 disk array, I think it is an expansion tray as there is no management port on it. Can they work independently without controller as a jbod dumb unit? Or attaching a controller is necessary?The simple answer is "not supported".