I've been running one NAS enclosure or the other at home for seven years now, with an ever-growing storage amount of digital photos, videos, programs, and other things I want to keep safe for ...
But no, it's not strictly needed for a NAS and the failure cases it covers are fairly small. The incremental cost of ECC in a DIY NAS is minimal, so it's something I've always opted for, but you can ...
The math about ECC can vary (i.e. how many extra bits you need), depending how many bits you want to be able to correct. It also depends on the length of the block you want to correct. I met this when ...