Can you please help if there is command to check what wwn or device was connected on a specific port before it went offline in case i do not have supportshow.
starting with FOS 7.4.x there is a command:
portloginshow [Port] -history
It will show you all recent WWN logouts.
If you are below 7.4 it will be difficult...
earlier release ((at least from 7.2) there is nsdevlog which can be used like
nsdevlog --show -port
nsdevlog --show -slot