jameswilson
Maybe there are some more processes not displayed by top that are hogging the CPU, it does appear to be very busy, so that's why it is not responding quickly to your earlier issued commands. What does this command show, assuming it does respond in a timely fashion
top -i
The sme reboot command is
signal-event reboot
To shutdown sme do
signal-event halt
Unfortunately it's hard to press the power switch if you are remote.