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by tecleandor
1115 days ago
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Note that ZFS (and probably other fs) checksums are not data corruption protection, but data corruption detection ;) If a checksum error is detected, you depend (mostly) on your RAIDZ protection to recover from it [0]. If you're on a single drive or striped array without mirrors or raidz1/2/3... you're SOL. (ditto blocks can help but they aren't the best. I'd only recommend them if you're stuck on a single drive setup without raid) But you at least know that your data is corrupt, and that's very important too :) 0: https://openzfs.github.io/openzfs-docs/Basic%20Concepts/Checksums.html
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