alt Hacker NewsYou assert that ECC RAM being necessary for ZFS is just a myth but provide no justification for why that is untrue.
Is it not the case that if you don't have ECC memory, ZFS could end up writing a checksum that does not match the data if you get a bitflip in just the right (wrong) spot?
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naturalmovement • today at 6:51 AM
> You assert that ECC RAM being necessary for ZFS is just a myth but provide no justification for why that is untrue.
ZFS without ECC is no more risky than any other file system / software RAID without ECC.
As no one owes you an explanation, it would take you five seconds to Google this and discover:
1. It's been disproven, with one of the original ZFS developers chiming in.
2. The original source of the rumor was a forum post that somehow became canon.
Yes, indeed. ECC RAM is better than non-ECC RAM, also for ZFS.
The myth, popularized by a notorious thread on the TrueNAS forums [1], is specifically that ZFS requires ECC RAM, and will do worse than other filesystems without it, because scrubbing will multiply a single bitflip into a failed pool.
A ZFS core developer says that that isn't the case [2]. Here's some more reasoning [3], also about many other myths.
[1] https://www.truenas.com/community/threads/ecc-vs-non-ecc-ram...
[2] https://news.ycombinator.com/item?id=18480016
[3] https://kldload.com/zfs-wiki/myths