Alex84

First the parity rebuild, then a quick backup of the flash drive, next is the share config which got lost in the process Once all is done, I will upgrade for sure.

Worked perfectly. Let me summarize for the future generation: 1. Find parity drive: Create new config (preserve none) -> start array with all drives assigned as data drives -> one 3TB drive showed up as "unformatted" 2. Fix drive assignment: Stopped array -> new config (again) -> assigned all data drives as datadrive, assigned identified parity drive as parity 3. Rebuild parity: start array -> rebuild parity starts automatically thanks for the quick support!

OK thanks for the warning. In the meantime, I figured out I did report something wrong.. The 3 missing drives are 1TB each. But the 3 suggested drives are 3 TB each. This really confuses me as I cannot exactly recall the last changes I did to the array. While I m pretty sure that the 2TB is still the parity (yes that would mean that the 3TB drives only used 2TB of its capacity so far), is there any other option to verify the parity drive? Any comand I could run? Also found this post: Is this also correct for 6.5.3? So to validate that the parity is infact the parity, I would assign all data discs and unassign the parity. Then starting the array, getting confirmation that there is NO drive reported as "unformatted". If thats the case I can reassign the parity, starting again, waiting for a full parity rebuild? I just dont get the part with the "set a new config"

No cache drive involved. Thank you for the detailed answer. (This may be worth a FAQ) Will start the array later today with all 12 fingers crossed

I see. The 3 available but unassigned / not matching drives are 1TB each, so it seems the parity disc is correctly identified. When you say "then it doesnt matter", do you imply that I could assign the 3 discs in any order and Unraid would make sense of them after starting the array? My server is running on Unraid 6.5.3

Hi trurl, thank you for the quick reply. Yes, lesson learned. Did a backup before assigning new disks last time. Did not do any other after everything worked... How can I be sure about the partiy drive? I only noticed, that the parity was automatically detected and assigned after recovering the old backup. The only thing manually changed was the key file which was replaced.

Hi all, unfortunately, I broke my flash drive and realized I only have a backup with an outdated disk assignment. Recovered the backup, replaced the key My parity was assigned correctly as were 2 of the other 5 hdds. The 3 remaining drives cannot be assigned. Following the wiki [1], I was asked to reach out to the community for help: Help is highly appreciated. Kind regards, Alex [1] https://wiki.unraid.net/UnRAID_6/Changing_The_Flash_Device