[StillBored]

ECC! I don't care what BS people say about ZFS/Btrfs/whatever, if a bit flips on your router hopefully the checksum fails and nothing bad happens.

If you flip a bit in memory, on the way to the disk, then its corrupt at rest, and future reads will likely propagate the error.

Sure, who cares, a glitch here/there in your kids first birthday video. Better hope the glitch is there, rather than in say the bit of code computing the sector offsets/whatever.

Stories like this hit the media every couple years, so if it can happen on the big fancy EMC/whatever then it can happen on your little NAS in the closet.

So, just pay the little extra for the CPU+MB+RAM that protects your data from the NIC all the way to the HD.