UDMA_CRC_Error_Count

[typewriter]

I had a 6 hd drives attached to 2 faulty 4 to 4 Sata Cables. OS was Windows. 5 8TB drives and one 10tb drive.

 

DiskWarrior showed that there were connection errors to 4 of the disks which I initially attributed to failing disks and not to faulty cables.

 

So I performed a backup of my data.

 

I now installed UNRAID, exchanged all sata cables to new ones - as I meanwhile read that kind of error could be a connection issue - and performed Preclear (2 cycles).

 

All Disks went with success through Preclear. The UDMA_CRC_Error_Count stayed the same as it was initially (which is as it should be) and did not get higher as it already was. To me this basically proved my faulty cables theory.

 

However I don't know how to deal with the drives showing UDMA_CRC_Errors.

 

Should I throw those away and get new ones?

 

 

 

 

[itimpi]

1 hour ago, typewriter said:

However I don't know how to deal with the drives showing UDMA_CRC_Errors.

The value never resets to 0 but as long as it is not increasing you should be OK.   If you click on the orange icon next to the drive on the Dashboard and select the Acknowledge option then Unraid will only alert you again if the value changes.