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Drive with UNC Errors


Maticks

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I started getting some UNC errors on a drive today and i ran an extended smart test.

Online some people are saying its not that serious, the drive isn't making any noises if it faulty ?

Below is the output of the drive smart.

 

smartctl 6.6 2017-11-05 r4594 [x86_64-linux-4.14.40-unRAID] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Red
Device Model:     WDC WD30EFRX-68EUZN0
Serial Number:    WD-WCC4N6KL7C79
LU WWN Device Id: 5 0014ee 26349a6c9
Firmware Version: 82.00A82
User Capacity:    3,000,592,982,016 bytes [3.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5400 rpm
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-2 (minor revision not indicated)
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Wed May 30 23:31:35 2018 AEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM feature is:   Unavailable
Rd look-ahead is: Enabled
Write cache is:   Enabled
DSN feature is:   Unavailable
ATA Security is:  Disabled, frozen [SEC2]
Wt Cache Reorder: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x00)    Offline data collection activity
                    was never started.
                    Auto Offline Data Collection: Disabled.
Self-test execution status:      ( 121)    The previous self-test completed having
                    the read element of the test failed.
Total time to complete Offline 
data collection:         (40320) seconds.
Offline data collection
capabilities:              (0x7b) SMART execute Offline immediate.
                    Auto Offline data collection on/off support.
                    Suspend Offline collection upon new
                    command.
                    Offline surface scan supported.
                    Self-test supported.
                    Conveyance Self-test supported.
                    Selective Self-test supported.
SMART capabilities:            (0x0003)    Saves SMART data before entering
                    power-saving mode.
                    Supports SMART auto save timer.
Error logging capability:        (0x01)    Error logging supported.
                    General Purpose Logging supported.
Short self-test routine 
recommended polling time:      (   2) minutes.
Extended self-test routine
recommended polling time:      ( 404) minutes.
Conveyance self-test routine
recommended polling time:      (   5) minutes.
SCT capabilities:            (0x703d)    SCT Status supported.
                    SCT Error Recovery Control supported.
                    SCT Feature Control supported.
                    SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     POSR-K   200   200   051    -    138
  3 Spin_Up_Time            POS--K   197   177   021    -    5141
  4 Start_Stop_Count        -O--CK   100   100   000    -    167
  5 Reallocated_Sector_Ct   PO--CK   200   200   140    -    0
  7 Seek_Error_Rate         -OSR-K   200   200   000    -    0
  9 Power_On_Hours          -O--CK   083   083   000    -    12421
 10 Spin_Retry_Count        -O--CK   100   100   000    -    0
 11 Calibration_Retry_Count -O--CK   100   100   000    -    0
 12 Power_Cycle_Count       -O--CK   100   100   000    -    147
192 Power-Off_Retract_Count -O--CK   200   200   000    -    116
193 Load_Cycle_Count        -O--CK   200   200   000    -    1101
194 Temperature_Celsius     -O---K   122   108   000    -    28
196 Reallocated_Event_Count -O--CK   200   200   000    -    0
197 Current_Pending_Sector  -O--CK   200   200   000    -    0
198 Offline_Uncorrectable   ----CK   100   253   000    -    0
199 UDMA_CRC_Error_Count    -O--CK   200   200   000    -    0
200 Multi_Zone_Error_Rate   ---R--   200   200   000    -    6
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

General Purpose Log Directory Version 1
SMART           Log Directory Version 1 [multi-sector log support]
Address    Access  R/W   Size  Description
0x00       GPL,SL  R/O      1  Log Directory
0x01           SL  R/O      1  Summary SMART error log
0x02           SL  R/O      5  Comprehensive SMART error log
0x03       GPL     R/O      6  Ext. Comprehensive SMART error log
0x04       GPL,SL  R/O      8  Device Statistics log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x09           SL  R/W      1  Selective self-test log
0x0c       GPL     R/O   2048  Pending Defects log
0x10       GPL     R/O      1  NCQ Command Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x21       GPL     R/O      1  Write stream error log
0x22       GPL     R/O      1  Read stream error log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log
0xa0-0xa7  GPL,SL  VS      16  Device vendor specific log
0xa8-0xb7  GPL,SL  VS       1  Device vendor specific log
0xbd       GPL,SL  VS       1  Device vendor specific log
0xc0       GPL,SL  VS       1  Device vendor specific log
0xc1       GPL     VS      93  Device vendor specific log
0xe0       GPL,SL  R/W      1  SCT Command/Status
0xe1       GPL,SL  R/W      1  SCT Data Transfer

SMART Extended Comprehensive Error Log Version: 1 (6 sectors)
Device Error Count: 17
    CR     = Command Register
    FEATR  = Features Register
    COUNT  = Count (was: Sector Count) Register
    LBA_48 = Upper bytes of LBA High/Mid/Low Registers ]  ATA-8
    LH     = LBA High (was: Cylinder High) Register    ]   LBA
    LM     = LBA Mid (was: Cylinder Low) Register      ] Register
    LL     = LBA Low (was: Sector Number) Register     ]
    DV     = Device (was: Device/Head) Register
    DC     = Device Control Register
    ER     = Error register
    ST     = Status register
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 17 [16] occurred at disk power-on lifetime: 12400 hours (516 days + 16 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 00 00 00 00 01 6c 0f f0 e1 00  Error: UNC at LBA = 0x016c0ff0 = 23859184

  Commands leading to the command that caused the error were:
  CR FEATR COUNT  LBA_48  LH LM LL DV DC  Powered_Up_Time  Command/Feature_Name
  -- == -- == -- == == == -- -- -- -- --  ---------------  --------------------
  c8 00 00 00 00 00 00 01 6c 0f f0 e1 08 37d+08:33:30.526  READ DMA
  c8 00 00 00 00 00 00 01 6c 0e f0 e1 08 37d+08:33:30.526  READ DMA
  c8 00 00 00 00 00 00 01 6c 0d f0 e1 08 37d+08:33:29.959  READ DMA
  c8 00 00 00 00 00 00 01 6c 0c f0 e1 08 37d+08:33:29.958  READ DMA
  c8 00 00 00 00 00 00 01 6c 0b f0 e1 08 37d+08:33:29.957  READ DMA

Error 16 [15] occurred at disk power-on lifetime: 12400 hours (516 days + 16 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 00 00 00 00 01 60 67 60 e1 00  Error: UNC at LBA = 0x01606760 = 23095136

  Commands leading to the command that caused the error were:
  CR FEATR COUNT  LBA_48  LH LM LL DV DC  Powered_Up_Time  Command/Feature_Name
  -- == -- == -- == == == -- -- -- -- --  ---------------  --------------------
  c8 00 00 00 00 00 00 01 60 66 f0 e1 08 37d+08:33:14.521  READ DMA
  c8 00 00 00 00 00 00 01 60 65 f0 e1 08 37d+08:33:14.519  READ DMA
  c8 00 00 00 00 00 00 01 60 64 f0 e1 08 37d+08:33:14.518  READ DMA
  c8 00 00 00 00 00 00 01 60 63 f0 e1 08 37d+08:33:14.517  READ DMA
  c8 00 00 00 00 00 00 01 60 62 f0 e1 08 37d+08:33:14.516  READ DMA

Error 15 [14] occurred at disk power-on lifetime: 11552 hours (481 days + 8 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 02 00 00 00 57 54 74 b8 e0 00  Error: UNC 512 sectors at LBA = 0x575474b8 = 1465152696

  Commands leading to the command that caused the error were:
  CR FEATR COUNT  LBA_48  LH LM LL DV DC  Powered_Up_Time  Command/Feature_Name
  -- == -- == -- == == == -- -- -- -- --  ---------------  --------------------
  25 00 00 02 00 00 00 57 54 74 a8 e0 08  2d+00:32:57.790  READ DMA EXT
  25 00 00 00 08 00 00 b7 13 fb 78 e0 08  2d+00:32:57.774  READ DMA EXT
  25 00 00 00 88 00 00 2f e0 e2 28 e0 08  2d+00:32:57.680  READ DMA EXT
  25 00 00 02 00 00 00 2f a9 ae 58 e0 08  2d+00:32:57.676  READ DMA EXT
  25 00 00 00 88 00 00 2f 9d 72 60 e0 08  2d+00:32:57.654  READ DMA EXT

Error 14 [13] occurred at disk power-on lifetime: 11519 hours (479 days + 23 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 00 20 00 00 57 54 74 40 e0 00  Error: UNC 32 sectors at LBA = 0x57547440 = 1465152576

  Commands leading to the command that caused the error were:
  CR FEATR COUNT  LBA_48  LH LM LL DV DC  Powered_Up_Time  Command/Feature_Name
  -- == -- == -- == == == -- -- -- -- --  ---------------  --------------------
  25 00 00 00 20 00 00 57 54 74 30 e0 08     14:59:10.970  READ DMA EXT
  25 00 00 00 30 00 00 57 61 f4 60 e0 08     14:59:10.967  READ DMA EXT
  25 00 00 00 c0 00 00 57 55 5a 38 e0 08     14:59:10.967  READ DMA EXT
  25 00 00 02 00 00 00 57 61 f2 60 e0 08     14:59:10.966  READ DMA EXT
  25 00 00 01 00 00 00 57 55 59 38 e0 08     14:59:10.965  READ DMA EXT

Error 13 [12] occurred at disk power-on lifetime: 11318 hours (471 days + 14 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 00 08 00 00 57 54 d0 80 e0 00  Error: UNC 8 sectors at LBA = 0x5754d080 = 1465176192

  Commands leading to the command that caused the error were:
  CR FEATR COUNT  LBA_48  LH LM LL DV DC  Powered_Up_Time  Command/Feature_Name
  -- == -- == -- == == == -- -- -- -- --  ---------------  --------------------
  25 00 00 00 08 00 00 57 54 d0 80 e0 08  3d+15:42:21.276  READ DMA EXT
  25 00 00 00 08 00 00 57 54 d0 60 e0 08  3d+15:42:21.276  READ DMA EXT
  25 00 00 00 08 00 00 57 54 d0 40 e0 08  3d+15:42:21.274  READ DMA EXT
  25 00 00 00 08 00 00 57 54 c4 d0 e0 08  3d+15:42:21.274  READ DMA EXT
  25 00 00 00 08 00 00 57 54 c4 90 e0 08  3d+15:42:21.274  READ DMA EXT

Error 12 [11] occurred at disk power-on lifetime: 11250 hours (468 days + 18 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 00 20 00 00 57 54 29 90 e0 00  Error: UNC 32 sectors at LBA = 0x57542990 = 1465133456

  Commands leading to the command that caused the error were:
  CR FEATR COUNT  LBA_48  LH LM LL DV DC  Powered_Up_Time  Command/Feature_Name
  -- == -- == -- == == == -- -- -- -- --  ---------------  --------------------
  25 00 00 00 20 00 00 57 54 29 78 e0 08     19:19:07.438  READ DMA EXT
  c8 00 00 00 20 00 00 03 db 6c 20 e3 08     19:19:07.414  READ DMA
  25 00 00 02 28 00 01 5a 74 ac 20 e0 08     19:19:07.401  READ DMA EXT
  25 00 00 04 00 00 01 5a 74 a8 20 e0 08     19:19:07.399  READ DMA EXT
  25 00 00 04 08 00 01 5a 74 a4 18 e0 08     19:19:07.397  READ DMA EXT

Error 11 [10] occurred at disk power-on lifetime: 11250 hours (468 days + 18 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 00 08 00 00 57 54 2a 38 e0 00  Error: UNC 8 sectors at LBA = 0x57542a38 = 1465133624

  Commands leading to the command that caused the error were:
  CR FEATR COUNT  LBA_48  LH LM LL DV DC  Powered_Up_Time  Command/Feature_Name
  -- == -- == -- == == == -- -- -- -- --  ---------------  --------------------
  25 00 00 00 08 00 00 57 54 2a 38 e0 08     19:18:22.228  READ DMA EXT
  25 00 00 05 00 00 01 5a 3d c5 b8 e0 08     19:18:22.219  READ DMA EXT
  25 00 00 05 40 00 01 5a 3d c0 78 e0 08     19:18:22.185  READ DMA EXT
  ea 00 00 00 00 00 00 00 00 00 00 e0 08     19:18:22.164  FLUSH CACHE EXT
  25 00 00 02 28 00 01 5a 3d be 50 e0 08     19:18:22.161  READ DMA EXT

Error 10 [9] occurred at disk power-on lifetime: 11250 hours (468 days + 18 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 00 08 00 00 57 54 2a 38 e0 00  Error: UNC 8 sectors at LBA = 0x57542a38 = 1465133624

  Commands leading to the command that caused the error were:
  CR FEATR COUNT  LBA_48  LH LM LL DV DC  Powered_Up_Time  Command/Feature_Name
  -- == -- == -- == == == -- -- -- -- --  ---------------  --------------------
  25 00 00 00 08 00 00 57 54 2a 38 e0 08     19:16:15.689  READ DMA EXT
  25 00 00 01 08 00 01 59 9c 6d 78 e0 08     19:16:15.682  READ DMA EXT
  25 00 00 04 00 00 01 59 9c 69 78 e0 08     19:16:15.680  READ DMA EXT
  25 00 00 04 08 00 01 59 9c 65 70 e0 08     19:16:15.678  READ DMA EXT
  25 00 00 01 a8 00 01 59 9c 63 c8 e0 08     19:16:15.657  READ DMA EXT

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed: read failure       90%     12414         8228008
# 2  Extended offline    Completed without error       00%      9210         -
# 3  Short offline       Completed without error       00%      3631         -
# 4  Short offline       Completed without error       00%      3463         -
# 5  Short offline       Completed without error       00%      3296         -
# 6  Short offline       Completed without error       00%      3128         -
# 7  Short offline       Completed without error       00%      2963         -
# 8  Short offline       Completed without error       00%      2795         -
# 9  Short offline       Completed without error       00%      2627         -
#10  Short offline       Completed without error       00%      2459         -
#11  Short offline       Completed without error       00%      2291         -
#12  Short offline       Completed without error       00%      2123         -
#13  Short offline       Completed without error       00%      1960         -
#14  Short offline       Completed without error       00%      1792         -
#15  Short offline       Completed without error       00%      1627         -
#16  Short offline       Completed without error       00%      1461         -
#17  Short offline       Completed without error       00%      1293         -
#18  Short offline       Completed without error       00%      1125         -

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.

SCT Status Version:                  3
SCT Version (vendor specific):       258 (0x0102)
SCT Support Level:                   1
Device State:                        Active (0)
Current Temperature:                    28 Celsius
Power Cycle Min/Max Temperature:     25/34 Celsius
Lifetime    Min/Max Temperature:      2/42 Celsius
Under/Over Temperature Limit Count:   0/0
Vendor specific:
01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

SCT Temperature History Version:     2
Temperature Sampling Period:         1 minute
Temperature Logging Interval:        1 minute
Min/Max recommended Temperature:      0/60 Celsius
Min/Max Temperature Limit:           -41/85 Celsius
Temperature History Size (Index):    478 (236)

Index    Estimated Time   Temperature Celsius
 237    2018-05-30 15:34    28  *********
 ...    ..( 70 skipped).    ..  *********
 308    2018-05-30 16:45    28  *********
 309    2018-05-30 16:46    29  **********
 ...    ..(156 skipped).    ..  **********
 466    2018-05-30 19:23    29  **********
 467    2018-05-30 19:24    30  ***********
 ...    ..(  7 skipped).    ..  ***********
 475    2018-05-30 19:32    30  ***********
 476    2018-05-30 19:33    31  ************
 ...    ..( 21 skipped).    ..  ************
  20    2018-05-30 19:55    31  ************
  21    2018-05-30 19:56    30  ***********
 ...    ..( 42 skipped).    ..  ***********
  64    2018-05-30 20:39    30  ***********
  65    2018-05-30 20:40    29  **********
 ...    ..(111 skipped).    ..  **********
 177    2018-05-30 22:32    29  **********
 178    2018-05-30 22:33    28  *********
 ...    ..( 57 skipped).    ..  *********
 236    2018-05-30 23:31    28  *********

SCT Error Recovery Control:
           Read:     70 (7.0 seconds)
          Write:     70 (7.0 seconds)

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 2) ==
0x01  0x008  4             147  ---  Lifetime Power-On Resets
0x01  0x010  4           12421  ---  Power-on Hours
0x01  0x018  6     20725578513  ---  Logical Sectors Written
0x01  0x020  6        83945277  ---  Number of Write Commands
0x01  0x028  6    227724544507  ---  Logical Sectors Read
0x01  0x030  6       416125326  ---  Number of Read Commands
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4           11900  ---  Spindle Motor Power-on Hours
0x03  0x010  4           11854  ---  Head Flying Hours
0x03  0x018  4            1218  ---  Head Load Events
0x03  0x020  4               0  ---  Number of Reallocated Logical Sectors
0x03  0x028  4            1816  ---  Read Recovery Attempts
0x03  0x030  4               0  ---  Number of Mechanical Start Failures
0x04  =====  =               =  ===  == General Errors Statistics (rev 1) ==
0x04  0x008  4              17  ---  Number of Reported Uncorrectable Errors
0x04  0x010  4               0  ---  Resets Between Cmd Acceptance and Completion
0x05  =====  =               =  ===  == Temperature Statistics (rev 1) ==
0x05  0x008  1              27  ---  Current Temperature
0x05  0x010  1              28  ---  Average Short Term Temperature
0x05  0x018  1              27  ---  Average Long Term Temperature
0x05  0x020  1              41  ---  Highest Temperature
0x05  0x028  1              21  ---  Lowest Temperature
0x05  0x030  1              37  ---  Highest Average Short Term Temperature
0x05  0x038  1              22  ---  Lowest Average Short Term Temperature
0x05  0x040  1              34  ---  Highest Average Long Term Temperature
0x05  0x048  1              23  ---  Lowest Average Long Term Temperature
0x05  0x050  4               0  ---  Time in Over-Temperature
0x05  0x058  1              60  ---  Specified Maximum Operating Temperature
0x05  0x060  4               0  ---  Time in Under-Temperature
0x05  0x068  1               0  ---  Specified Minimum Operating Temperature
0x06  =====  =               =  ===  == Transport Statistics (rev 1) ==
0x06  0x008  4             415  ---  Number of Hardware Resets
0x06  0x010  4           79324  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
                                |||_ C monitored condition met
                                ||__ D supports DSN
                                |___ N normalized value

Pending Defects log (GP Log 0x0c) supported [please try: '-l defects']

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x0001  2            0  Command failed due to ICRC error
0x0002  2            0  R_ERR response for data FIS
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0005  2            0  R_ERR response for non-data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS
0x0008  2            0  Device-to-host non-data FIS retries
0x0009  2            8  Transition from drive PhyRdy to drive PhyNRdy
0x000a  2            8  Device-to-host register FISes sent due to a COMRESET
0x000b  2            0  CRC errors within host-to-device FIS
0x000f  2            0  R_ERR response for host-to-device data FIS, CRC
0x0012  2            0  R_ERR response for host-to-device non-data FIS, CRC
0x8000  4      3303456  Vendor specific

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SMART doesn't look, but the fact that it failed the extended test is enough to get it replaced.

 

Quote

Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed: read failure       90%     12414         8228008

 

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