Unraid has been complaining a lot about CRC errors on my Samsung Evo 850 500GB SSD cache drive. I have checked that the cables are connected and secure, already.  I have been using this drive for at least a year with no issues until recently when I was in the system replacing a drive.  I have attached the SMART report and the unraid diagnostics.  Any ideas?

tower-smart-20210426-1017.zip tower-diagnostics-20210426-1413.zip

Replace the SATA cable, Samsung SSDs are very picky with cable quality.

I replaced the cable a few hours ago and still getting the errors. 

Try a different port/controller, but SATA cable is still the most likely culprit.

I did put the new cable on another port after that and have not gotten any errors since.  I only got one error on the new cable on the old port, before switching, where I had gotten 9,800 before  Thanks for the tips.