I have a fairly old system board from 2010 and two newer hard drives (HGST 6-TB) running CentOS. I repeatedly get the following errors in the dmesg output for each hard drive (proceeded by a loud clicking sound).

ata14: lost interrupt (Status 0x50)
ata14.00: exception Emask 0x10 SAct 0x0 SErr 0x40d0002 action 0xe frozen
ata14: SError: { RecovComm PHYRdyChg CommWake 10B8B DevExch }
ata14.00: failed command: READ DMA EXT
ata14.00: cmd 25/00:08:a8:d9:30/00:00:46:02:00/e0 tag 0 dma 4096 in
ata14.00: status: { DRDY }
ata14: hard resetting link
ata14: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata14.00: configured for UDMA/133
ata14.00: device reported invalid CHS sector 0
ata14: EH complete

What could this be?


Old system and new disks? If the system's power supply is also old, it might be having problems keeping the voltages stable - and when the hard disks experience brief power "brown-outs", they reset and report errors to the operating system.

If you can, try borrowing a new PSU from somewhere and using it to run the system for a while. If replacing the PSU causes the errors to not happen any more, then the old PSU is starting to die.

  • 1
    OP: Actually, the PSU was the problem. As I recall I purchased a new PSU and the problems disappeared. – JB_User Aug 6 '18 at 17:32

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.