looop Posted August 5, 2021 Share Posted August 5, 2021 Do I need to run both [ Parity-Check and btrfs scrub ] to avoid [ Silent Corruption and corrupted blocks]?😵 My array owen 2 Parity disk and 1 cache SSD disk. Quote Link to comment
trurl Posted August 5, 2021 Share Posted August 5, 2021 parity check and scrub are completely unrelated, and parity has nothing to do with cache. And parity has no data. 1 Quote Link to comment
looop Posted August 5, 2021 Author Share Posted August 5, 2021 28 minutes ago, trurl said: parity check and scrub are completely unrelated, and parity has nothing to do with cache. And parity has no data. Thx for your reply, do I need to run [ Parity-Check and btrfs scrub ] to protect my array from [ Silent Corruption and corrupted blocks]?  I just want to protect my data on Unraid server.😄 Quote Link to comment
trurl Posted August 5, 2021 Share Posted August 5, 2021 Do you have backups? You must always have another copy of anything important and irreplaceable. Parity is not a substitute for backups. Â Quote Link to comment
looop Posted August 5, 2021 Author Share Posted August 5, 2021 yep, I have another backup disk.  How do I know some file fail on my array? Eg: one Pic fail on my 100,000 PIC, and I general do not use them within 3 years.  In general, the backup disk backup the full data one year ago. if one Pic fail and when I find it has passed two years.😠Quote Link to comment
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