SMART test on failing drive clears errors?

M3PH

M3PH

Dabbler
Joined
Mar 3, 2024
Messages
21
So heres a curious one: I have a drive that last night was marked as unhealthy. I already knew it was failing and had ordered a new one yesterday (so don't panic. It's in the post) but to be sure I ran a long smart test on it overnight. the drive had 360 unreadable (pending sectors) and had developed 96 write errors during the course of the day. I wake up this morning and I check the results. The test was aborted but the drive is now marked as ok. Did the smart test just move the data in the bad sectors to a good spot? were the errors a false negative? what happened? anyone got any ideas?

here's the smartctl data
Code:
=== START OF INFORMATION SECTION ===
Model Family:     Seagate BarraCuda 3.5 (SMR)
Device Model:     ST2000DM008-2FR102
Serial Number:    ZFL0205V
LU WWN Device Id: 5 000c50 0b38a38bf
Firmware Version: 0001
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
TRIM Command:     Available
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-3 T13/2161-D revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Mar 12 13:55:12 2024 GMT
SMART support is: Available - device has SMART capability.
SMART support is: 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:      (  41) The self-test routine was interrupted
                                        by the host with a hard or soft reset.
Total time to complete Offline
data collection:                (    0) seconds.
Offline data collection
capabilities:                    (0x73) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        No 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:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 199) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x30a5) SCT Status supported.
                                        SCT Data Table supported.


SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   045   042   006    Pre-fail  Always       -       58547401
  3 Spin_Up_Time            0x0003   098   097   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       767
  5 Reallocated_Sector_Ct   0x0033   085   085   010    Pre-fail  Always       -       40688
  7 Seek_Error_Rate         0x000f   091   060   045    Pre-fail  Always       -       1264598562
  9 Power_On_Hours          0x0032   050   050   000    Old_age   Always       -       44294h+40m+29.304s
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       642
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   095   095   000    Old_age   Always       -       5
188 Command_Timeout         0x0032   100   092   000    Old_age   Always       -       248 248 1376
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   071   058   040    Old_age   Always       -       29 (Min/Max 27/31)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       709
193 Load_Cycle_Count        0x0032   001   001   000    Old_age   Always       -       243788
194 Temperature_Celsius     0x0022   029   042   000    Old_age   Always       -       29 (0 13 0 0 0)
195 Hardware_ECC_Recovered  0x001a   078   064   000    Old_age   Always       -       58547401
197 Current_Pending_Sector  0x0012   099   099   000    Old_age   Always       -       352
198 Offline_Uncorrectable   0x0010   099   099   000    Old_age   Offline      -       352
199 UDMA_CRC_Error_Count    0x003e   200   138   000    Old_age   Always       -       20473620
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       18202h+42m+03.532s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       42027016137
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       38464112865


SMART Error Log Version: 1
ATA Error Count: 5
        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 5 occurred at disk power-on lifetime: 28060 hours (1169 days + 4 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 51 00 ff ff ff 0f  Error: UNC at LBA = 0x0fffffff = 268435455


  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 00 ff ff ff 4f 00      00:11:37.423  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00      00:11:37.423  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00      00:11:37.149  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00      00:11:37.149  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00      00:11:37.146  READ FPDMA QUEUED


Error 4 occurred at disk power-on lifetime: 28060 hours (1169 days + 4 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 51 00 68 d2 7c 0a  Error: UNC at LBA = 0x0a7cd268 = 175952488


  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 00 00 d3 7c 4a 00      00:10:37.051  READ FPDMA QUEUED
  60 00 00 00 d2 7c 4a 00      00:10:37.050  READ FPDMA QUEUED
  06 01 01 00 00 00 e0 00      00:10:37.049  DATA SET MANAGEMENT
  60 00 00 00 d1 7c 4a 00      00:10:36.850  READ FPDMA QUEUED
  60 00 00 00 d0 7c 4a 00      00:10:36.849  READ FPDMA QUEUED


Error 3 occurred at disk power-on lifetime: 28060 hours (1169 days + 4 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 51 00 38 cb 7c 0a  Error: UNC at LBA = 0x0a7ccb38 = 175950648


  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 00 00 cb 7c 4a 00      00:10:35.763  READ FPDMA QUEUED
  60 00 00 00 ca 7c 4a 00      00:10:35.763  READ FPDMA QUEUED
  60 00 00 00 c9 7c 4a 00      00:10:35.761  READ FPDMA QUEUED
  60 00 00 00 c8 7c 4a 00      00:10:35.760  READ FPDMA QUEUED
  60 00 00 00 c7 7c 4a 00      00:10:35.753  READ FPDMA QUEUED


Error 2 occurred at disk power-on lifetime: 24417 hours (1017 days + 9 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 51 00 ff ff ff 0f  Error: UNC at LBA = 0x0fffffff = 268435455


  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 00 ff ff ff 4f 00      00:07:14.650  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00      00:07:14.650  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00      00:07:14.647  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00      00:07:14.647  READ FPDMA QUEUED
  60 00 00 ff ff ff 4f 00      00:07:14.644  READ FPDMA QUEUED


Error 1 occurred at disk power-on lifetime: 21208 hours (883 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 SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 00 f0 ef 0f 0a  Error: UNC at LBA = 0x0a0feff0 = 168816624


  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 00 00 ef 0f 4a 00   1d+03:36:00.624  READ FPDMA QUEUED
  60 00 00 00 ee 0f 4a 00   1d+03:36:00.624  READ FPDMA QUEUED
  60 00 00 00 ed 0f 4a 00   1d+03:36:00.621  READ FPDMA QUEUED
  60 00 00 00 ec 0f 4a 00   1d+03:36:00.621  READ FPDMA QUEUED
  60 00 00 00 eb 0f 4a 00   1d+03:36:00.618  READ FPDMA QUEUED


SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Interrupted (host reset)      90%     44285         -
# 2  Short offline       Completed without error       00%     44236         -


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.
 
M3PH

M3PH

Dabbler
Joined
Mar 3, 2024
Messages
21
looking at the data, i'm assuming coz it's an smr drive, the errors were because of the write around delay (or what ever that term is) and the smart test gave it a kick, which caused the drive to sort itself out
 
chuck32

chuck32

Guru
Joined
Jan 14, 2023
Messages
623
M3PH said:
assuming coz it's an smr drive,
Click to expand...
The new one is a CMR drive? You should consider replacing all your SMR drives with CMR drives.
 
M3PH

M3PH

Dabbler
Joined
Mar 3, 2024
Messages
21
yes. i'm moving away from barracuda's to iron wolf pro's as when i get failures
 
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