Read errors on disk...


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Happy 2019 to all the "unRAIDERs" out there...

 

I was alerted to some disk errors (thanks to "Fix Common Problems") and wanted to see how bad this is. 

 

One of my disks has errors - see below. I do not know enough about hardware to know if this is just normal wear and tear or not? And more importantly, should I start to worry? 

 

Extended SMART test says all ok and I do regular parity checks and those are fine too. I also attach my diagnostics. 

 

Should I start thinking about replacing this drive and others? 

 

Thanks!

 

---

 

ATA Error Count: 7 (device log contains only the most recent five errors)
    CR = Command Register [HEX]
    FR = Features Register [HEX]
    SC = Sector Count Register [HEX]
    SN = Sector Number Register [HEX]
    CL = Cylinder Low Register [HEX]
    CH = Cylinder High Register [HEX]
    DH = Device/Head Register [HEX]
    DC = Device Command Register [HEX]
    ER = Error register [HEX]
    ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.

Error 7 occurred at disk power-on lifetime: 36305 hours (1512 days + 17 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
  -- -- -- -- -- -- --
  40 53 00 58 9a 0e 01  Error: UNC at LBA = 0x010e9a58 = 17734232

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  25 00 80 78 96 0e e1 00  38d+22:51:24.116  READ DMA EXT
  25 00 40 38 91 0e e1 00  38d+22:51:24.108  READ DMA EXT
  35 00 40 b8 8a 0e e1 00  38d+22:51:24.104  WRITE DMA EXT
  25 00 40 f8 8f 0e e1 00  38d+22:51:24.080  READ DMA EXT
  47 00 01 30 06 00 a0 00  38d+22:51:24.079  READ LOG DMA EXT

Error 6 occurred at disk power-on lifetime: 36305 hours (1512 days + 17 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
  -- -- -- -- -- -- --
  40 53 00 98 8d 0e 01  Error: UNC at LBA = 0x010e8d98 = 17730968

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  25 00 40 b8 8a 0e e1 00  38d+22:51:20.068  READ DMA EXT
  35 00 80 f8 7f 0e e1 00  38d+22:51:20.065  WRITE DMA EXT
  25 00 00 b8 86 0e e1 00  38d+22:51:20.063  READ DMA EXT
  25 00 40 78 81 0e e1 00  38d+22:51:20.042  READ DMA EXT
  47 00 01 30 06 00 a0 00  38d+22:51:20.040  READ LOG DMA EXT

Error 5 occurred at disk power-on lifetime: 36305 hours (1512 days + 17 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
  -- -- -- -- -- -- --
  40 53 00 d0 80 0e 01  Error: UNC at LBA = 0x010e80d0 = 17727696

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  25 00 80 f8 7f 0e e1 00  38d+22:51:15.991  READ DMA EXT
  25 00 40 b8 7a 0e e1 00  38d+22:51:15.984  READ DMA EXT
  35 00 40 00 74 0e e1 00  38d+22:51:15.979  WRITE DMA EXT
  25 00 78 40 79 0e e1 00  38d+22:51:15.961  READ DMA EXT
  47 00 01 30 06 00 a0 00  38d+22:51:15.960  READ LOG DMA EXT

Error 4 occurred at disk power-on lifetime: 36305 hours (1512 days + 17 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
  -- -- -- -- -- -- --
  40 53 00 10 74 0e 01  Error: UNC at LBA = 0x010e7410 = 17724432

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  25 00 40 00 74 0e e1 00  38d+22:51:12.235  READ DMA EXT
  c8 00 08 f8 73 0e e1 00  38d+22:51:12.233  READ DMA
  25 00 40 78 69 0e e1 00  38d+22:51:12.226  READ DMA EXT
  25 00 78 00 68 0e e1 00  38d+22:51:11.826  READ DMA EXT
  25 00 40 80 51 0e e1 00  38d+22:51:11.229  READ DMA EXT

Error 3 occurred at disk power-on lifetime: 36305 hours (1512 days + 17 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
  -- -- -- -- -- -- --
  40 53 00 e8 4c 0e 01  Error: UNC at LBA = 0x010e4ce8 = 17714408

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  25 00 08 50 49 0e e1 00  38d+22:51:06.731  READ DMA EXT
  35 00 d0 80 45 0e e1 00  38d+22:51:06.728  WRITE DMA EXT
  35 00 28 50 3d 0e e1 00  38d+22:51:06.726  WRITE DMA EXT
  47 00 01 30 06 00 a0 00  38d+22:51:06.725  READ LOG DMA EXT
  47 00 01 30 00 00 a0 00  38d+22:51:06.724  READ LOG DMA EXT

 

 

zack-unraid-diagnostics-20190109-1831.zip

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@johnnie.black Many thanks for this. Is there a good set of docs or web page where I can learn more about the various errors and which ones I should worry about? Would like to learn this and get a bit more self sufficient.

 

Also - I do regular parity checks (one a week) but in looking around on this error, it seems most folks do once a month? Is once a month enough? 

 

Thanks!!

Edited by TexasDave
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