Re:Benchmarking Intel, AMD and Graviton Using Erasure Coding...
by tecleandor on Tuesday May 23, 2023 @07:52AM
(#36043002)
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 :)
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 :)