mauriceatkinson@btconnect. Posted September 14 Share Posted September 14 (edited) I moved all my data from several 2 & 3tb drives onto a couple of 12tb drives. The move went OK and parity drive was updated. However the 12tb data drives has failed and when the array starts it states it is umnountable. I have tried UD and that also states it is unmountable. The parity drive is showing as invalid. I have ordered another 12tb drive as I thought a drive swop would be straightforward but I am concerned that the parity drive is showing as invalid. is there anyway to look at the parity drive to see if the data can be rebuilt with a new data drive? is there anyway to get to the data on the faulty 12tb as I would hate to loose all this data? freedom-diagnostics-20240914-1746.zip Edited September 14 by mauriceatkinson@btconnect. Quote Link to comment
JorgeB Posted September 14 Share Posted September 14 Disk appears to be failing, run an extended SMART test to confirm. 37 minutes ago, mauriceatkinson@btconnect. said: The move went OK and parity drive was updated. In that case do you know why parity is showing as invalid? Quote Link to comment
mauriceatkinson@btconnect. Posted September 14 Author Share Posted September 14 the exended smart test shows "completed read failure" this is the smart log for the drive if that helps? I am assuming that the parity drive should not be showing invalid? what options do I have to get my data back? freedom-smart-20240914-1833.zip Quote Link to comment
JorgeB Posted September 14 Share Posted September 14 5 hours ago, mauriceatkinson@btconnect. said: the exended smart test shows "completed read failure" That confirm the disk failed. 5 hours ago, mauriceatkinson@btconnect. said: I am assuming that the parity drive should not be showing invalid? If you description is correct it shouldn't, but since it is, best bet is possibly cloning the disk with ddrescue, then try to mount the clone Quote Link to comment
mauriceatkinson@btconnect. Posted September 21 Author Share Posted September 21 thanks I used ddrescue and recovered the data. However I swopped out the bad drive but now I have the parity drive is disabled. I know the system went through its parity check and last night it was at 80% with no errors. This morning the drive is disabled. Any ideas as to the issue here? freedom-diagnostics-20240921-0833.zip Quote Link to comment
JorgeB Posted September 21 Share Posted September 21 Looks more like a power/connection issue, but the parity disk dropped, so there's no SMART, check/replace cables for that disk and post new diags after boot Quote Link to comment
mauriceatkinson@btconnect. Posted September 21 Author Share Posted September 21 ok changed the power and sata port but still parity drive is disabled. freedom-diagnostics-20240921-0950.zip Quote Link to comment
Solution JorgeB Posted September 21 Solution Share Posted September 21 SMART looks fine, if you replaced both cables re-sync parity: https://docs.unraid.net/unraid-os/manual/storage-management#rebuilding-a-drive-onto-itself 1 Quote Link to comment
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