DRDY error
 

I`ve got this error message:
Sun May 31 01:03:53 2015
Disk cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
Disk exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 fro
Disk status: { DRDY ERR }, Disk configured for UDMA/33
Disk qc timeout (cmd 0xa0)
sr 0:0:0:0: CDB: Test Unit Ready: 00 00 00 00 00 00
ata1: EH complete
ata1: link is slow to respond, please be patient (ready=0)
ata1: soft resetting link
res 51/20:03:00:00:00/00:00:00:00:00/a0 Emask 0x5 (timeout)
ata1: device not ready (errno=-16), forcing hardreset

Could you help me with the solution?
Thanks a lot.

No, we can't help you, since you've not provided any details which would let us do so. You don't tell us what version/distro of Linux you're using, type of hardware, where you're seeing the error, what you've done/tried, etc.

Provide details and ask a clear question, and we can try to help. See the "Question Guidelines" and "How to ask a smart question" links in my posting signature.