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Forum Discussion
How does bitrot protection actually work?
I understand the concept, but am curious how it is actually implemented on 6.2.0
Yes, but there has been discussion that non-ecc memory could corrupt an entire volume systematically.
During a scrub, the data is regularly checked for bit-rot and if the memory is bad, it would calculate bit rot (incorrectly)...then replace good data with bad data.
ZFS wont do that based on the way it replaces the "bad" memory spot (It would have to find something it calculates as "good" to replace the bad, and bad memory would never find something "good" to use).
But how does Netgear's implementation of BTRFS do that?
During a scrub, the data is regularly checked for bit-rot and if the memory is bad, it would calculate bit rot (incorrectly)...then replace good data with bad data.
ZFS wont do that based on the way it replaces the "bad" memory spot (It would have to find something it calculates as "good" to replace the bad, and bad memory would never find something "good" to use).
But how does Netgear's implementation of BTRFS do that?
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