On Jan 12, 2017 6:22 PM, "niya levi via arch-general" < arch-general@xxxxxxxxxxxxx> wrote: hi everyone i have a fileserver with 6 1tb disks i get the following errors repeated constantly ------------------------------------------------------------ ------------------------------------------ ata17.00 exception Emask 0x0 Sact 0x0 SErr 0x0 action 0x6 frozen failed command: READ DMA cmd c8/00:30: tag 14 dma 65536 in res 40/00:ff:00 Emask 0x4 (timeout) status {DRDY} ------------------------------------------------------------ ---------------------------------------------- after some googling it's been suggested that it's either a hard drive, the sata controller or the sata cables. how do i go about diagnosing and fixing the problem, any suggestions or guidance would be appreciated. shadrock Hi, You can also run self diagnostics with smartd, that may tell you more