DMESG Segment:

device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: dm-devel@redhat.com
nbd0: Attempted send on closed socket
end_request: I/O error, dev nbd0, sector 0
Buffer I/O error on device nbd0, logical block 0
Buffer I/O error on device nbd0, logical block 1
Buffer I/O error on device nbd0, logical block 2
Buffer I/O error on device nbd0, logical block 3
nbd0: Attempted send on closed socket
end_request: I/O error, dev nbd0, sector 0
Buffer I/O error on device nbd0, logical block 0
nbd0: Attempted send on closed socket
end_request: I/O error, dev nbd0, sector 4294965120
nbd0: Attempted send on closed socket
end_request: I/O error, dev nbd0, sector 0
nbd1: Attempted send on closed socket
end_request: I/O error, dev nbd1, sector 4294965120
nbd1: Attempted send on closed socket
end_request: I/O error, dev nbd1, sector 0
nbd2: Attempted send on closed socket
end_request: I/O error, dev nbd2, sector 4294965120
nbd2: Attempted send on closed socket
end_request: I/O error, dev nbd2, sector 0
nbd3: Attempted send on closed socket
end_request: I/O error, dev nbd3, sector 4294965120
nbd3: Attempted send on closed socket
end_request: I/O error, dev nbd3, sector 0
nbd4: Attempted send on closed socket
end_request: I/O error, dev nbd4, sector 4294965120
nbd4: Attempted send on closed socket
end_request: I/O error, dev nbd4, sector 0
nbd5: Attempted send on closed socket
end_request: I/O error, dev nbd5, sector 4294965120
nbd5: Attempted send on closed socket
end_request: I/O error, dev nbd5, sector 0
nbd6: Attempted send on closed socket
end_request: I/O error, dev nbd6, sector 4294965120
nbd6: Attempted send on closed socket
end_request: I/O error, dev nbd6, sector 0
nbd7: Attempted send on closed socket
end_request: I/O error, dev nbd7, sector 4294965120
nbd7: Attempted send on closed socket
end_request: I/O error, dev nbd7, sector 0
nbd8: Attempted send on closed socket
end_request: I/O error, dev nbd8, sector 4294965120
nbd8: Attempted send on closed socket
end_request: I/O error, dev nbd8, sector 0
nbd9: Attempted send on closed socket
end_request: I/O error, dev nbd9, sector 4294965120
nbd9: Attempted send on closed socket
end_request: I/O error, dev nbd9, sector 0
nbd10: Attempted send on closed socket
end_request: I/O error, dev nbd10, sector 4294965120
nbd10: Attempted send on closed socket
end_request: I/O error, dev nbd10, sector 0
nbd11: Attempted send on closed socket
end_request: I/O error, dev nbd11, sector 4294965120
nbd11: Attempted send on closed socket
end_request: I/O error, dev nbd11, sector 0
nbd12: Attempted send on closed socket
end_request: I/O error, dev nbd12, sector 4294965120
nbd12: Attempted send on closed socket
end_request: I/O error, dev nbd12, sector 0
nbd13: Attempted send on closed socket
end_request: I/O error, dev nbd13, sector 4294965120
nbd13: Attempted send on closed socket
end_request: I/O error, dev nbd13, sector 0
nbd14: Attempted send on closed socket
end_request: I/O error, dev nbd14, sector 4294965120
nbd14: Attempted send on closed socket
end_request: I/O error, dev nbd14, sector 0
nbd15: Attempted send on closed socket
end_request: I/O error, dev nbd15, sector 4294965120
nbd15: Attempted send on closed socket
end_request: I/O error, dev nbd15, sector 0
nbd0: Attempted send on closed socket
end_request: I/O error, dev nbd0, sector 0
nbd1: Attempted send on closed socket
end_request: I/O error, dev nbd1, sector 0
nbd2: Attempted send on closed socket
end_request: I/O error, dev nbd2, sector 0
nbd3: Attempted send on closed socket
end_request: I/O error, dev nbd3, sector 0
nbd4: Attempted send on closed socket
end_request: I/O error, dev nbd4, sector 0
nbd5: Attempted send on closed socket
end_request: I/O error, dev nbd5, sector 0
nbd6: Attempted send on closed socket
end_request: I/O error, dev nbd6, sector 0
nbd7: Attempted send on closed socket
end_request: I/O error, dev nbd7, sector 0
nbd8: Attempted send on closed socket
end_request: I/O error, dev nbd8, sector 0
nbd9: Attempted send on closed socket
end_request: I/O error, dev nbd9, sector 0
nbd10: Attempted send on closed socket
end_request: I/O error, dev nbd10, sector 0
nbd11: Attempted send on closed socket
end_request: I/O error, dev nbd11, sector 0
nbd12: Attempted send on closed socket
end_request: I/O error, dev nbd12, sector 0
nbd13: Attempted send on closed socket
end_request: I/O error, dev nbd13, sector 0
nbd14: Attempted send on closed socket
end_request: I/O error, dev nbd14, sector 0
nbd15: Attempted send on closed socket
end_request: I/O error, dev nbd15, sector 0
loop: loaded (max 8 devices)
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sdb3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
NTFS volume version 3.1.