>Later I came to turn it back on and found I was stuck! Because it was in auto 
>mode and had been shut down correctly, it was stuck turned off
>- turning on the PSU had no effect, so I had to call out an engineer to go and 
>press the power button.
>The moral of the story is to leave the BIOS set to 'turn on' and then turn it 
>off at the PSU; do not use the 'auto' mode!
>This particular server had no IPMI/ILO facility so I couldn't tell it to turn 
>on that way.

Good point, we always set server's BIOS options to something like "power on" 
instead of "last state".
Only drawback: in a black start situation of your server room all your systems 
try to start at the same time;
plus servers tend to draw a lot of power in the first minutes : all disks 
spinning up, all fans running at full speed...
you might well end up with a UPS overload shutoff or a blown fuse in that 
situation. But in this case there will probably somebody around anyway.

JC

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