Reading SMARTCTL report

[DeanNotDin]

Hey everyone!
I'm running FreeNAS 9.10.2-U4 and my setup includes 3 4TB WD Red Edition (NAS version @5400rpm).
Today I got the following email and a critical error:

CRITICAL: Aug. 1, 2017, 8:09 p.m. - Device: /dev/ada1, Self-Test Log error count increased from 0 to 1

It seems that one of the drives (ada1) is failing.
I took the full details using smartctl -a, but I couldn't quite figure out the meaning of it (of course that I looked it up first, I just couldn't find anything that is sufficiently explained)

Code:

Error 1 occurred at disk power-on lifetime: 91 hours (3 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 SC SN CL CH DH																											 
  -- -- -- -- -- -- --																											 
  10 51 08 00 02 40 40  Error: IDNF at LBA = 0x00400200 = 4194816																   
																																	
  Commands leading to the command that caused the error were:																	   
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name																   
  -- -- -- -- -- -- -- --  ----------------  --------------------																   
  ca 00 08 00 02 40 40 08   3d+18:39:39.650  WRITE DMA																			 
																																	
SMART Self-test log structure revision number 1																					 
Num  Test_Description	Status				  Remaining  LifeTime(hours)  LBA_of_first_error									 
# 1  Extended offline	Completed: read failure	   10%	  2620		 2703340736											 
# 2  Extended offline	Completed without error	   00%	  2611		 -													 
# 3  Extended offline	Completed without error	   00%	  2569		 -													 
# 4  Extended offline	Completed without error	   00%	  2550		 -													 
# 5  Extended offline	Completed without error	   00%	  2539		 -													 
# 6  Extended offline	Completed without error	   00%	  2411		 -													 
# 7  Extended offline	Completed without error	   00%	  2399		 -													 
# 8  Extended offline	Completed without error	   00%	  2251		 -													 
# 9  Extended offline	Completed without error	   00%	  2239		 -													 
#10  Extended offline	Completed without error	   00%	  2229		 -													 
#11  Extended offline	Completed without error	   00%	  2072		 -													 
#12  Extended offline	Completed without error	   00%	  2061		 -													 
#13  Extended offline	Completed without error	   00%	  1924		 -													 
#14  Extended offline	Completed without error	   00%	  1905		 -													 
#15  Extended offline	Completed without error	   00%	  1893		 -													 
#16  Extended offline	Completed without error	   00%	  1867		 -													 
#17  Extended offline	Completed without error	   00%	  1856		 -													 
#18  Extended offline	Completed without error	   00%	  1845		 -													 
#19  Extended offline	Completed without error	   00%	  1699		 -													 
#20  Extended offline	Completed without error	   00%	  1688		 -													 
#21  Extended offline	Completed without error	   00%	  1677		 -													 
																																	
SMART Selective self-test log data structure revision number 1																	 
SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS																						
	1		0		0  Not_testing																								
	2		0		0  Not_testing																								
	3		0		0  Not_testing																								
	4		0		0  Not_testing																								
	5		0		0  Not_testing																								
Selective self-test flags (0x0):																									
  After scanning selected spans, do NOT read-scan remainder of disk.																
If Selective self-test is pending on power-up, resume after 0 minute delay.

So it did return a Read Failure, should I be concerned?
If i'm not mistaken this drive is still under warranty, will I be elgible for an RMA on this one?

I'm waiting for your reply,
Dean.

 

[Stux]

Yes. RMA it.

PS: did you burn in the disk? It would normally take over 91 hours to do it ;)

 

[joeschmuck]

Dean,
Post the entire output of smartctl -a /dev/ada1 and if that is what you posted above, then use smartctl -x /dev/ada1.

So it did return a Read Failure, should I be concerned?

Yes you should be concerned. Your extended test failed. Yes, if your drive is under warranty then this is cause to RMA it.

 

[Ericloewe]

Most likely, yes.

 

[nojohnny101]

For future reference, you can find a great resource penned by none other than himself, @joeschmuck about how to interrupt hard drive failures:
https://forums.freenas.org/index.ph...bleshooting-guide-all-versions-of-freenas.17/

 

[joeschmuck]

For future reference, you can find a great resource penned by none other than himself, @joeschmuck about how to interrupt hard drive failures:
https://forums.freenas.org/index.ph...bleshooting-guide-all-versions-of-freenas.17/

Thanks. I would like to update this reference to include using SAS or other HBAs which require a person to use camcontrol commands. Maybe I'll get some time in the near future.