I had this error happen a couple weeks and a reboot seemed to smooth everything until now. I've browsed the forums and have concluded that it's most likely a cache drive dying or the docker image is toast.
Can anyone help my figure out if one of my cache drives is on its way out or if my docker image is corrupt?
Symptoms:
Docker webpage will not load and results in an error
Cannot create a new folder through Windows SMB - Get message - Error 0x8000FFFF: Catastrophic failure
Error Messages in Unraid
Below is error messages from one cache drive in the pool
Nov 3 05:10:06 Tower root: /mnt/cache: 176.8 GiB (189819338752 bytes) trimmed on /dev/sdm1
Nov 8 13:24:42 Tower kernel: BTRFS error (device sdm1): incorrect extent count for 1668683923456; counted 1333, expected 1337
Nov 8 13:24:42 Tower kernel: BTRFS: error (device sdm1: state A) in convert_free_space_to_extents:466: errno=-5 IO failure
Nov 8 13:24:42 Tower kernel: BTRFS info (device sdm1: state EA): forced readonly
Nov 8 13:24:42 Tower kernel: BTRFS: error (device sdm1: state EA) in remove_from_free_space_tree:859: errno=-5 IO failure
Nov 8 13:24:42 Tower kernel: BTRFS error (device sdm1: state EA): failed to run delayed ref for logical 1668962603008 num_bytes 4096 type 178 action 1 ref_mod 1: -5
Nov 8 13:24:42 Tower kernel: BTRFS: error (device sdm1: state EA) in btrfs_run_delayed_refs:2150: errno=-5 IO failure
Second message within the logs shows that it's switch to read only
Nov 8 13:24:42 Tower kernel: BTRFS: error (device sdm1: state A) in convert_free_space_to_extents:466: errno=-5 IO failure
Nov 8 13:24:42 Tower kernel: BTRFS info (device sdm1: state EA): forced readonly
Nov 8 13:24:42 Tower kernel: BTRFS: error (device sdm1: state EA) in remove_from_free_space_tree:859: errno=-5 IO failure
Nov 8 13:24:42 Tower kernel: BTRFS error (device sdm1: state EA): failed to run delayed ref for logical 1668962603008 num_bytes 4096 type 178 action 1 ref_mod 1: -5
Nov 8 13:24:42 Tower kernel: BTRFS: error (device sdm1: state EA) in btrfs_run_delayed_refs:2150: errno=-5 IO failure
Nov 8 13:24:42 Tower kernel: loop: Write error at byte offset 4111290368, length 4096.
Nov 8 13:24:42 Tower kernel: I/O error, dev loop2, sector 8029864 op 0x1:(WRITE) flags 0x0 phys_seg 32 prio class 2
Nov 8 13:24:42 Tower kernel: BTRFS error (device loop2): bdev /dev/loop2 errs: wr 1, rd 0, flush 0,
syslog.txt