beno

Will do @trurl. My new unraid setup is much more fault (Ben) tolerant. Good news is that ddrescue eventually saved 99.9% of the data. I had to shutdown and power up (restart wouldn't work) whenever it found a bad area but it finished last night and I'm copying the data over to the new (protected) unraid. Figured out how to xfs_repair and had to use -L but it's all pretty much back or in lostandfound. 3 cheers for unraid forums!

Will do. Will report back after complete.

Attached SMART report ST32000542AS_5XW2GD6L-20191108-0834.txt

Thanks @johnnie.black, I won't be able to try this until Thursday evening but I will try then and report back. 🤞🤞🤞

Thanks trurl for explaining that well. Yes, the New Config probably is what allowed the disk add and the shares to become "stable" but missing half of the data. Yes, I have backups of most of it. Recovery would be a slow pita, but worth it for photos etc. I'd be interested in general overview to recover the data from disk1, any advice? I am moving to a more robust server so I have access to another machine/unraid setup if that helps. Most of my data recovery experience is ntfs/fat32, not xfs. Thanks again.

Would XFS allow one to mount the old 2TB drive onto another unraid server? How about if I cloned it first?

I got here by stumbling unfortunately. Disk3 is the replacement 2TB drive that I added to the array out of complete desperation and lack of understanding.

Pretty sure Disk1 and Disk2 were the data disks. I can get them working together in harmony and shares are up but only for a minute before errors occur for the 2TB drive.

Ugh, yes. Yes I did try new config. No, I didn't rebuild parity. I did try to format the new 2TB drive.

I might have in the past. It could have been mystery 7. Unraid is running from a USB stick. When my shares were down, I tried to access a file recently using another stick but didn't try to incorporate it into the array.

Wow, just saw that you had replied multiple times. I'll respond soon.

Yes, Disk 7 is a bit of a mystery to me. I've replaced the cable and tried a different SATA port for original 2TB but still have read errors stopping the array. Like I said, I don't know what I'm doing and I'm lost. I appreciate your help. I put disk3 in as a replacement but when I couldn't find a "rebuild" option, I thought I might have to add it to a different disk. At the time, I didn't understand the ramifications of disk7. 1. A couple years ago everything was working great 2. I added mystery disk7 for some reason more than a year ago to add capacity I think. It didn't work and things were still "working" so I removed it physically but apparently I've been running around with a false sense of security ever since. 3. A month or so ago I started rebooting the server as a "fix" because the shares weren't available (I know) 4. Last night, I finally got around to looking into unraid config and hardware 5. Tried to figure out what drive was the issue. Tried a new cable and putting both drives in different SATA ports, determined that the 3TB drive was fine but 2TB was not. 2TB drive is still attached but not being recognized anymore. It could be that Disk2 was 2TB and Disk1 was 3TB and I switched them for current config. 6. Inserted another 2TB drive and tried to select it in the old 2TB slot. Tried to find a rebuild command or something. Noted that when selecting the 2TB drive, it said wrong drive or incorrect config. 7. Looked online for help 8. Asked you guys I can transfer all the 3TB data fine and it looks like I'm SOL for the 2TB unless I can do some data recovery on it. I've used DDrescue before with success. Does the horrible timeline above help at all? Would any other info/logs/pictures help? Thanks again for your help.

My array is half dead. Diagnostics attached. Pretty simple config of 4TB parity, 2TB and 3TB data. 2TB drive is dying or dead, lots of read errors. I was expecting to be able to remove the 2TB drive and put in another and choose some sort of rebuild operation but I'm lost. It says wrong disk or incorrect configuration. I added the replacement to disk 3 on a whim not really knowing why, hoping I could find the magic rebuild command. I'm wondering if this "mystery disk7" is keeping me from rebuilding. I probably added that drive for capacity and then it didn't work and and didn't cleanly remove it. Ugh. 1. How do I remove the mystery disk 7? 2. How do I rebuild dead 2TB on new 2TB? d nas-olsen-diagnostics-20191105-0940.zip