> In answer to Kai's original question, the setup that was described > should be fine --- assuming high quality hardware. I wonder how to judge that ... it's an eMMC supposedly complying to some JEDEC standard, so it *should* be ok. > ... if power is cut suddenly, the data used by the Flash > Translation Layer can be corrupted, in which case data written months > or years ago (not just recent data) could be lost. At least I haven't observed anything like that up to now. But on another aspect: how about the interaction between dm-integrity and ext4? Sure, they each have their own journal, and they're independent layers. Is there anything that could go wrong, say a block that can't be recovered in the dm-integrity layer, causing ext4 to run into trouble, e.g., an I/O error that prevents ext4 from mounting? I assume tne answer is "No", but can I be sure? Thx regards Kai
