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Sonarr through me choosing to put a series under a subfolder removed the entire folder for some reason. My mistake was tired. I've searched and found UFS Explorer is the method best to restore. Is there a write up on how to use UFSE with Unraid drives? I've read pull each drive and restore the data, but how do I make sure not to affect the existing drives & data? I also don't want to mess up the array. Any advice appreciated, for now I've shutdown the NAS.

Did a defaults preclear of a new drive, with pre and post reads on. When I came back to it the status show 'An error occured check the log' but I can't see anything wrong here. Ideas? Am I missing something? Ok to still put in array? Dec 30 16:29:35 ur kernel: sd 7:0:0:0: [sde] 7814037168 512-byte logical blocks: (4.00 TB/3.64 TiB) Dec 30 16:29:35 ur kernel: sd 7:0:0:0: [sde] 4096-byte physical blocks Dec 30 16:29:35 ur kernel: sd 7:0:0:0: [sde] Write Protect is off Dec 30 16:29:35 ur kernel: sd 7:0:0:0: [sde] Mode Sense: 00 3a 00 00 Dec 30 16:29:35 ur kernel: sd 7:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA Dec 30 16:29:35 ur kernel: sd 7:0:0:0: [sde] Attached SCSI disk Dec 30 16:29:43 ur emhttpd: WDC_ (sde) 512 7814037168 Dec 30 16:33:16 ur preclear_disk_WD-[12024]: Command: /usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh --cycles 1 --no-prompt /dev/sde Dec 30 16:33:18 ur preclear_disk_WD-[12024]: Pre-Read: dd if=/dev/sde of=/dev/null bs=2097152 skip=0 count=4000787030016 conv=notrunc,noerror iflag=nocache,count_bytes,skip_bytes Dec 31 00:37:47 ur preclear_disk_WD-[12024]: Zeroing: dd if=/dev/zero of=/dev/sde bs=2097152 seek=2097152 count=4000784932864 conv=notrunc iflag=count_bytes,nocache,fullblock oflag=seek_bytes

Thanks, my apologies

Did a defaults preclear of a new drive, with pre and post reads on. When I came back to it the status show 'An error occured check the log' but I can't see anything wrong here. Ideas? Am I missing something? Ok to still put in array? Dec 30 16:29:35 ur kernel: sd 7:0:0:0: [sde] 7814037168 512-byte logical blocks: (4.00 TB/3.64 TiB) Dec 30 16:29:35 ur kernel: sd 7:0:0:0: [sde] 4096-byte physical blocks Dec 30 16:29:35 ur kernel: sd 7:0:0:0: [sde] Write Protect is off Dec 30 16:29:35 ur kernel: sd 7:0:0:0: [sde] Mode Sense: 00 3a 00 00 Dec 30 16:29:35 ur kernel: sd 7:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA Dec 30 16:29:35 ur kernel: sd 7:0:0:0: [sde] Attached SCSI disk Dec 30 16:29:43 ur emhttpd: WDC_W (sde) 512 7814037168 Dec 30 16:33:16 ur preclear_disk_WD-W[12024]: Command: /usr/local/emhttp/plugins/preclear.disk/script/preclear_disk.sh --cycles 1 --no-prompt /dev/sde Dec 30 16:33:18 ur preclear_disk_WD-W[12024]: Pre-Read: dd if=/dev/sde of=/dev/null bs=2097152 skip=0 count=4000787030016 conv=notrunc,noerror iflag=nocache,count_bytes,skip_bytes Dec 31 00:37:47 ur preclear_disk_WD-W[12024]: Zeroing: dd if=/dev/zero of=/dev/sde bs=2097152 seek=2097152 count=4000784932864 conv=notrunc iflag=count_bytes,nocache,fullblock oflag=seek_bytes

What is the best way to backup the data? The array is going read-only when the cache drive errors. I tried going into safe mode and mounting array as mentioned in Except I can't mount sdc1, or sde1 drives for my array. Errors with: "is not a block device" Array is xfs I could try scp though may lose permissions.

The docker image errors out and goes read only, then /mnt/user/media goes read only. Tried deleting and recreating docker.img and it worked for a few minutes then same errors came back. SMART check in cache drive shows no errors. Have a new cache drive can replace or ideally add to pool if this cache drive is ok. Errors: BTRFS error (device sdd1): bad tree block start, want 175554560 have 9470129656584428157 BTRFS warning (device sdd1): sdd1 checksum verify failed on 315736064 wanted BD9417A4 found 3FA6F8FF level 0 BTRFS error (device sdd1): pending csums is 4096 loop: Write error at byte offset 2158243840, length 4096. print_req_error: I/O error, dev loop2, sector 4215320 kernel: BTRFS error (device loop2): bdev /dev/loop2 errs: wr 1, rd 0, flush 0, corrupt 0, gen 0 loop: Write error at byte offset 2158243840, length 4096. print_req_error: I/O error, dev loop2, sector 4215320 BTRFS error (device loop2): bdev /dev/loop2 errs: wr 2, rd 0, flush 0, corrupt 0, gen 0 ntpd[1704]: kernel reports TIME_ERROR: 0x41: Clock Unsynchronized Tried to copy all of cache of to array but the errors occur and all goes read only. See no errors about the array and data looks good there. tower-diagnostics-20200601-2145.zip