October 13, 2025Oct 13 Stupidity to the extreme I suppose, but here I am. I was fiddling around w/ Unraid, updating and what not. Suggested a file system change, and here we are. I have a total of 4 drives, 1 parity 8tb drive, 3 data drives. 1 8 tb and 2 2 tb. I was going to consolidate the 2 tb onto the 1 8tb, as they would all fit. 1 8tb and 1 2tb data drive were in the breifs(?) file system and it was suggested I change to xfs. Well, I did that not thinking about consequences. Yea. Parity I don't believe was touched. All the data on 8tb and 2tb data drives were 'formatted'. Am I able to restore my data in any way/shape/form? Help?
October 13, 2025Oct 13 Community Expert Solution Parity is updated at the same time as any write operation. Format is a write operation.Even if parity had been removed before you did that, single parity can't recover 2 drives.You should always have another copy of anything important and irreplaceable. Parity is not a substitute for backups. Plenty of ways to lose data besides a disk failure, including user error.
October 16, 2025Oct 16 Community Expert On 10/13/2025 at 8:32 PM, b1nd13r said:Am I able to restore my data in any way/shape/form?Not using standard Unraid features.It is just possible that disk recovery software such as UFS explorer on Windows might be able to recover something. That software is not free, but it does have a free option that shows what (if anything) it would be able to recover.
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