For some reason every single time I go to do any work on my colocated server that requires remote console access I end up having to remember how the silly console redirection works. Presented here in the vain hope that I will find this next time I need it and perhaps that it may help someone else.
By default if you are in the serial console redirection mode, which is
entered from the IMM CLI via the console 1 command, you can press
ESC ( to escape back to the cli. If you have changed the command it
can be found by querying the config using the command srcfg.