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muth02446 | 3 months ago

What I am curious about: where zfs checksum failures the only symptom of the bad disks or where there SMART failures as well?

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gdevenyi|3 months ago

In our ZFS JBOD setup with 90HDDs we scrub regularly and never find checksum errors. Instead, we might get a few recoverable read errors, but more likely, no SMART warnings, just sudden drive failure disappearing from the bus.