On 27 Oct 2005, at 16:07, Tom Lane wrote:
Alex Stapleton <alexs@xxxxxxxxx> writes:
The system RAM won't usually be supported by any batteries though, so
it will go crazy, copy corrupt data to the DIMMs on the RAID
controller, which then will refuse to write it to the disk until the
power comes up, and then write the bad data to the drive surely?
Not in competently designed hardware. The system should shut down
completely the instant the power supply's outputs go out of spec,
which will be before the logic components actually start to
malfunction.
This is not to say that cheap consumer-grade PCs are competently
designed ;-) but the issue was a solved problem when I was a
practicing EE, and that was a long time ago.
lol, iirc it was an middle aged piece of random dell equipment. They
seem to be getting progressively less awful these days so maybe it
was just that particular model. I may have to do some evil tests
using glass fuses and hammers (and rubber gloves).......
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