[stoltzmann]

That traditional wisdom is wrong. ECC is a must-have for any computer. The only reason people think ECC is mandatory for ZFS is because it exposes errors due to inherent checksumming and most other filesystems don't, even if they suffer from the same problems.

[HappMacDonald]

I'm curious if it would make sense for write caches in RAM to just include a CRC32 on every block, to be verified as it gets written to disk.

[doubled112]

Don't you have to read that data into RAM before you can generate the CRC? Which means without ECC it could get silently corrupted on the way to the cache?