On Mon, Dec 31, 2007 at 01:00:24AM +0100, chefren wrote: > On 12/29/07 5:27 PM, Douglas A. Tutty wrote: > > >Summary: > > > >I still suggest a heartbeat monitor and a modem. > > A heartbeat monitor makes the system seriously more complicated and thus > less reliable. > > If the proposed system boots from a non writable medium (yes there are > flash devices with a write-protect switch, CD-rom is also OK although dust > collection on the laser detector is an issue) and works in memory, > diskless!, unintended log events will be written to memory (that might > overflow but who cares for this application) and the system always boots > the same after power up.
How does that help if the computer just crashes or freezes instead of just spontaneously rebooting? Sure, there's the version 0.0.1 Human to push a power button. Presumably, one can get solid reliable RS-232C heartbeat monitors that can trigger a power-cycle. If not, they're not that difficult to make assuming that you can source some reliable parts. I totally agree with the non-writable medium issue. Doug.
