No, there are no drives connected to those ports, those are the onboard SATA ports, only the first two have devices connected:
May 9 09:43:30 afterdark kernel: ata1.00: ATA-9: SanDisk SDSSDHII240G, 150366401046, X31200RL, max UDMA/133
May 9 09:43:30 afterdark kernel: ata2.00: ATA-9: Samsung SSD 850 EVO 500GB, S21HNSAG408848P, EMT01B6Q, max UDMA/133
May 9 09:43:30 afterdark kernel: ata3: SATA link down (SStatus 0 SControl 300)
May 9 09:43:30 afterdark kernel: ata4: SATA link down (SStatus 0 SControl 300)
May 9 09:43:30 afterdark kernel: ata5: SATA link down (SStatus 0 SControl 300)
May 9 09:43:30 afterdark kernel: ata6: SATA link down (SStatus 0 SControl 300)