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by ssl-3
2 days ago
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> Hmmm, it's been a long long time since I actually had a failed drive (and also I don't use zfs), but from what I remember of my last failing drive 20 years ago, the drive was able to detect that sectors had been corrupted, and then failed the read rather than just returning silently corrupted data. That's the behavior that is desired, yes. And in a neat world of frictionless pulleys and ropes that don't stretch, perhaps that is what happens. In reality, the root reasoning for filesystems to detect bitrot is simpler: It's irrational to expect that a device which is already failing is going to behave in a predictable way. |
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