March 1, 20251 yr Hi guys I got this sync error for the past 6 months i did replace parity from 2x 8TB to 1x 20 TB and last week i added another 20 TB so 2x 20TB. sync error started when i replace the 2 x 8TB Any help would be appreciated thanks unraid-diagnostics-20250301-1737.zip
March 2, 20251 yr Community Expert Solution Run a correcting check, then run another one to confirm 0 errors.
March 3, 20251 yr It's interesting that you have dual parity also. I've been trying to understand why a parity check keeps finding and correcting parity errors, when everything otherwise appears good. I did a parity check confirming no errors about 13 days ago. Smart shows all drives are good. I even now have the File Integerity plug-in installed (showing no file corruption). All I've done in the last 13 days is maybe add perhaps 5 new movie files, via my Cache drive and the Mover. I've also had no power issues on my UPS protected unRAID server. I just watch something each night, otherwise the drives are spun-down. Now I'm running another parity check and it's nearly done, but finding and correcting another 5 new parity bit errors. !!! The interesting thing is that based on the write count, there has been 5 extra writes to my first Parity drive, in comparison to the count on the Parity 1 drive. So, I'm assuming from this, that the all 5 parity bit errors were probably found / corrected on the first Parity drive, with the second Parity drive (Parity 1), being okay? File Integrity check finds no file corruption on my array. So, now I'm wondering if there is a bug in the implementation of dual parity drives? As I can't fathom what else would cause 5 parity errors over the last 2 weeks, with an otherwise healthy system. Edited March 3, 20251 yr by KoolKiwiNZ
March 3, 20251 yr Author yeah i dont know i did flush my 2 parity drives clear partitions and make new ones. Im still syncing the partity still 1 day to go but i got currently Sync errors corrected: 2291424161 i dont understand like when i did have my 2x 8TB never got errors and my system looks super healthy
March 7, 20251 yr Author took 3 days to finished the Parity-Check. im starting a new one and for now i got 0 errors so looks good thx
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