And there are stories of IBM hardware surviving fires and floods and coming back to life after not much more than a minor cleanup and a reboot. I once personall

And there are stories of IBM hardware surviving fires and floods and coming back to life after not much more than a minor cleanup and a reboot. I once personally dealt with an IBM system that got hit by lightning. It crashed and took its own sweet time coming back up but it did come back up, with no special intervention, having only lost a few RS-232 comm cards to the lightning. Meanwhile, these days you have folks running "start of the art" systems which may just roll over and die for no discernible reason. These may not easily come back up, either, if at all. That's why they have to have so many of them!