Fix common problems is reporting that my parity drive is reporting read errors - Drive log attached.

 

I've been an UNRAID user for 4 years now and love it, but this is the first time I've had a potential disk error. Would someone be able to check the log file for the drive please? If more info is needed, please let me know. If it is a potential drive failure, what are the correct steps to take to resolve?

 

Many thanks.

WDC_WD40EFRX-68WT0N0_WD-WCC4E2ND35EL-20201201-1729 parity (sdd).txt

Edited December 1, 20205 yr by WannabeMKII
Title change

Hey! Another WD Red user! 

See my thread from a couple of weeks ago. The extended SMART results mean different things for different brands of drives.

I'll let someone more knowledgeable than me confirm, but your drive might need replacement. 

Also, traditionally it helps to attach general diagnostics in additional to the SMART results. Tools -> Diagnostics -> Download. 

Disk is showing some issue, run an extended SMART test.

Thanks for the steer. I’ve started the extended test and will post the results when it’s finished. Assume it’s the same log file?

From the Disk's personal page: go to the section labeled "Self-Test" and click the "Download SMART report" button.

If you've done a short SELF test, then yes, the same button. 

Extended test report attached.

 

Does this help diagnose?

WDC_WD40EFRX-68WT0N0_WD-WCC4E2ND35EL-20201202-1141.txt

SMART test passed so the disk is OK for now, the but previous errors are logged as actual disk errors, so you want to keep an eye on it, especially this attribute:

 

ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     POSR-K   200   200   051    -    1528

 

If it continues to increase the disk will likely fail again soon.

Many thanks for the info. I'll keep an eye on the raw value.

Is there a way to set an alert if this number is to increase?

You can add that attribute to SMART monitoring, I recommend monitoring that one plus attribute #200 for all WD drives.

OK, I've added '1,200' under SMART attribute notifications. I assume I'll get a message if the numbers change? Is that how it works?

1 hour ago, WannabeMKII said:

Is that how it works?

Yep.

7 minutes ago, JorgeB said:

Yep.

Perfect, many thanks! 👍