Uncorrectable parity/CRC error

These just turned up:

Jan  9 14:31:13 slocum kernel: (ada6:ahcich6:0:0:0): READ_FPDMA_QUEUED. ACB: 60 28 48 5d 1d 40 e1 00 00 00 00 00
Jan  9 14:31:13 slocum kernel: (ada6:ahcich6:0:0:0): CAM status: Uncorrectable parity/CRC error
Jan  9 14:31:13 slocum kernel: (ada6:ahcich6:0:0:0): Retrying command
Jan  9 14:31:13 slocum kernel: (ada6:ahcich6:0:0:0): READ_FPDMA_QUEUED. ACB: 60 08 68 d0 57 40 0f 00 00 00 00 00
Jan  9 14:31:13 slocum kernel: (ada6:ahcich6:0:0:0): CAM status: Uncorrectable parity/CRC error
Jan  9 14:31:13 slocum kernel: (ada6:ahcich6:0:0:0): Retrying command
Jan  9 14:31:13 slocum kernel: (ada2:ahcich2:0:0:0): READ_FPDMA_QUEUED. ACB: 60 40 38 5d 1d 40 e1 00 00 00 00 00
Jan  9 14:31:13 slocum kernel: (ada5:ahcich5:0:0:0): READ_FPDMA_QUEUED. ACB: 60 e8 d8 5b 1d 40 e1 00 00 00 00 00
Jan  9 14:31:13 slocum kernel: (ada2:ahcich2:0:0:0): CAM status: Uncorrectable parity/CRC error
Jan  9 14:31:13 slocum kernel: (ada5:ahcich5:0:0:0): CAM status: Uncorrectable parity/CRC error
Jan  9 14:31:13 slocum kernel: (ada2:(ada5:ahcich2:0:ahcich5:0:0:0:0): 0): Retrying command
Jan  9 14:31:13 slocum kernel: Retrying command
Jan  9 14:31:13 slocum kernel: (ada2:ahcich2:0:0:0): READ_FPDMA_QUEUED. ACB: 60 08 e8 5d 1d 40 e1 00 00 00 00 00
Jan  9 14:31:13 slocum kernel: (ada5:ahcich5:0:0:0): READ_FPDMA_QUEUED. ACB: 60 60 c0 5c 1d 40 e1 00 00 00 00 00
Jan  9 14:31:13 slocum kernel: (ada2:ahcich2:0:0:0): CAM status: Uncorrectable parity/CRC error
Jan  9 14:31:13 slocum kernel: (ada5:ahcich5:0:0:0): CAM status: Uncorrectable parity/CRC error
Jan  9 14:31:13 slocum kernel: (ada2:(ada5:ahcich2:0:ahcich5:0:0:0:0): 0): Retrying command
Jan  9 14:31:13 slocum kernel: Retrying command
Jan  9 14:34:13 slocum smartd[998]: Device: /dev/ada2, ATA error count increased from 0 to 1
Jan  9 14:34:16 slocum smartd[998]: Device: /dev/ada5, ATA error count increased from 0 to 1