If RLM isn't configured, and if the filer isn't plugged into a power supply that you can remotely power on/off, then you're pretty much stuck with going to the remote site to power cycle.
You say you can't login on the console - is that a telnet/ssh connection or a serial connection? If telnet/ssh, are you unable to connect, or you connect and don't have the password? Or you login and it hangs, or ...?
Bill