3 ms·
They don't publish specs on consumer cards, so it's all speculation without heavy reverse engineering. There seems to be people saying that it's not just volta
by eternityforest 3y ago
They don't publish specs on consumer cards, so it's all speculation without heavy reverse engineering.
There seems to be people saying that it's not just voltage spikes, it's power failure corrupting data at the FTL layer, that the card wasn't designed to recover from.
If it were up to me, SD based devices like the RasPi would have a tiny capacitor, diode, and supervisor circuit, so that the SD could never lose power until at least a few ms after the CPU did, but I'm not the one in charge of such things, all I can do is spec a UPS or an industrial card.
Or more likely, just keep the logs in RAM as much as possible and use fatrace to hunt down various card destroying daemons.