I'm not too alarmed quite yet but I got a single read error yesterday on Disk 5 of my array. SMART doesn't seem to have recorded it. I ran both short and long SMART tests and both passed. Wanted to get an opinion b efore I really start worrying about dying drives or controllers.

unraid-diagnostics-20190916-1419.zip

1 minute ago, Taddeusz said:

SMART doesn't seem to have recorded it.

It did here:

 

Error 1 [0] occurred at disk power-on lifetime: 22219 hours (925 days + 19 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER -- ST COUNT  LBA_48  LH LM LL DV DC
  -- -- -- == -- == == == -- -- -- -- --
  40 -- 51 04 00 00 00 e2 fd 34 90 40 00  Error: UNC at LBA = 0xe2fd3490 = 3808244880

And it was recorded as a media error, but since SMART test passed and all attributes look OK it's fine for now, just keep an eye on it.

Run an extended SMART test.

Thank you.

Also, you will have to reboot to get the error count in the webUI reset.

1 minute ago, trurl said:

Run an extended SMART test.

I did, it passed.