writing garbage when the voltage drops
Posted Jul 15, 2006 5:21 UTC (Sat) by roelofs
In reply to: writing garbage when the voltage drops
Parent article: Crash-only software: More than meets the eye
I can easily believe that the motor generating power is fantasy, but I always assumed there was a capacitor in there that could supply enough energy to finish writing the current sector. Why wouldn't there be?
Size, maybe? I'm just shooting the breeze here, but caps associated with power supplies tend to be immensely bigger than typical hard-drive components, and I'd guess that one capable of acting as a power-supply standin for even a few milliseconds would still be quite a bit bigger than the little surface-mount discretes used on drives today.
But maybe I'm suffering from cranio-rectal impaction again... I hate it when that happens.
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