I have a CentOS-5.6 remote server in a house in Italy, where there are occasional thunder-storms.
There was one yesterday, when the electricity went off 3 times, for a second or so on each occasion.
My server, an HP MicroServer, came back (re-booted) on 2 of the 3 occasions, but not on the third.
I assume that the problem arises because the machine does not close down properly. (Although it is also possible that a voltage surge might have been responsible - I have no surge protector on this supply.)
It seems to me that it should be possible to have a simple, torch-battery operated, system which will keep the machine alive long enough to make a graceful exit. A full-blown UPS would be excessive, I think, as I only want the machine to re-boot when the current comes back on.
I know there is a Remote Management (iLO) card for this machine, which might be useful for this. Unfortunately, I've already used the PCIe slot for a second ethernet card.
Any advice or suggestions gratefully received.