So a while back one of my drives started having Reported uncorrect errors, offline uncorrected, and pending sector errors. I ran the short and long SMART tests and both came back fine, and replaced the SATA cable and never got the errors again. The reported uncorrected stayed at 32. 

Today the errors started again, and the reported uncorrected errors went to 62. I am now suspecting it has something to do with the disk being completely filled (that was the same case last time) and that is somehow related to getting the errors.  I ran the SMART tests again but they both end in "Completed without error" like last time. 

 

The error count of the drive on the main page of Unraid is now up to 484 and am not sure if I should just replace the drive or reformat and see how it goes.

 

I've attached the notifications and smart report. 

 

 

ST3000DM008-2DM166_Z504LFS7-20200519-0028.txt

19 minutes ago, diditstart said:

I am now suspecting it has something to do with the disk being completely filled

Only if that it making it use a zone with marginal sectors.

 

It's usually good to give a disk a second chance when it's a one time thing but if it keeps having read errors better to replace it.

That could be it, well I have a 4TB WD Red coming in on wednesday. So might just replace the drive.