Looks like you have corruption on disk1:
Mar 8 17:47:03 Importimage kernel: XFS (md1p1): Corruption warning: Metadata has LSN (-1723008584:-1473360099) ahead of current LSN (2:2434814). Please unmount and run xfs_repair (>= v4.3) to resolve.
Mar 8 17:47:03 Importimage kernel: XFS (md1p1): Metadata CRC error detected at xfs_bmbt_read_verify+0x12/0x5a [xfs], xfs_bmbt block 0x87ffd298
you should run a check filesystem on disk1, and run without -n and if it asks for it adding -L.