md: md3: raid array is not clean -- starting background reconstruction
Buffer I/O error on device dm-10, logical block 8388592
Buffer I/O error on device dm-10, logical block 8388592
Buffer I/O error on device dm-10, logical block 0
Buffer I/O error on device dm-10, logical block 1
Buffer I/O error on device dm-10, logical block 2
Buffer I/O error on device dm-10, logical block 3
Buffer I/O error on device dm-10, logical block 4
Buffer I/O error on device dm-10, logical block 5
Buffer I/O error on device dm-10, logical block 6
Buffer I/O error on device dm-10, logical block 7
Buffer I/O error on device dm-10, logical block 8388592