Acabei de instalar vários novos HDDs em uma máquina e, por acaso, notei que um deles tinha dois erros relatados, então executei smartctl -xe obtive o seguinte:

smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-141-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Hitachi/HGST Ultrastar 7K4000
Device Model:     HGST HUS724040ALA640
Serial Number:    [REDACTED]
LU WWN Device Id: [REDACTED]
Firmware Version: MFAOAC50
User Capacity:    4,000,787,030,016 bytes [4.00 TB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Jan  1 05:33:21 2019 PST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM feature is:   Disabled
Rd look-ahead is: Enabled
Write cache is:   Enabled
ATA Security is:  Disabled, NOT FROZEN [SEC1]
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:  (0x82) Offline data collection activity
                    was completed without error.
                    Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0) The previous self-test routine completed
                    without error or no self-test has ever 
                    been run.
Total time to complete Offline 
data collection:        (   24) seconds.
Offline data collection
capabilities:            (0x5b) SMART execute Offline immediate.
                    Auto Offline data collection on/off support.
                    Suspend Offline collection upon new
                    command.
                    Offline surface scan supported.
                    Self-test supported.
                    No 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:    ( 543) minutes.
SCT capabilities:          (0x003d) 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     PO-R--   100   100   016    -    0
  2 Throughput_Performance  P-S---   138   138   054    -    74
  3 Spin_Up_Time            POS---   100   100   024    -    572
  4 Start_Stop_Count        -O--C-   100   100   000    -    8
  5 Reallocated_Sector_Ct   PO--CK   100   100   005    -    0
  7 Seek_Error_Rate         PO-R--   100   100   067    -    0
  8 Seek_Time_Performance   P-S---   142   142   020    -    25
  9 Power_On_Hours          -O--C-   100   100   000    -    520
 10 Spin_Retry_Count        PO--C-   100   100   060    -    0
 12 Power_Cycle_Count       -O--CK   100   100   000    -    8
192 Power-Off_Retract_Count -O--CK   100   100   000    -    16
193 Load_Cycle_Count        -O--C-   100   100   000    -    16
194 Temperature_Celsius     -O----   166   166   000    -    36 (Min/Max 22/56)
196 Reallocated_Event_Count -O--CK   100   100   000    -    0
197 Current_Pending_Sector  -O---K   100   100   000    -    0
198 Offline_Uncorrectable   ---R--   100   100   000    -    0
199 UDMA_CRC_Error_Count    -O-R--   200   200   000    -    0
                            ||||||_ 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
0x03       GPL     R/O      1  Ext. Comprehensive SMART error log
0x04       GPL     R/O      7  Device Statistics log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x08       GPL     R/O      2  Power Conditions log
0x09           SL  R/W      1  Selective self-test log
0x10       GPL     R/O      1  SATA NCQ Queued Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x20       GPL     R/O      1  Streaming performance log [OBS-8]
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
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 (1 sectors)
Device Error Count: 2
    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 2 [1] occurred at disk power-on lifetime: 16878 hours (703 days + 6 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 0f 00 01 12 cd a0 31 02 00  Error: UNC at LBA = 0x112cda031 = 4610433073

  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
  -- == -- == -- == == == -- -- -- -- --  ---------------  --------------------
  60 00 10 00 10 00 01 12 cd a0 30 40 00  1d+08:13:30.021  READ FPDMA QUEUED
  61 00 10 00 00 00 01 12 63 a0 30 40 00  1d+08:13:30.021  WRITE FPDMA QUEUED
  60 00 10 00 00 00 01 12 cc a0 30 40 00  1d+08:13:30.017  READ FPDMA QUEUED
  61 00 10 00 10 00 01 12 62 a0 30 40 00  1d+08:13:30.011  WRITE FPDMA QUEUED
  60 00 10 00 00 00 01 12 cb a0 30 40 00  1d+08:13:30.004  READ FPDMA QUEUED

Error 1 [0] occurred at disk power-on lifetime: 10610 hours (442 days + 2 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 01 34 00 01 12 f9 3a fc 02 00  Error: UNC at LBA = 0x112f93afc = 4613290748

  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
  -- == -- == -- == == == -- -- -- -- --  ---------------  --------------------
  60 00 08 00 10 00 00 00 00 01 2c 40 00  2d+01:26:34.533  READ FPDMA QUEUED
  61 00 10 00 08 00 00 57 04 60 00 40 00  2d+01:26:33.675  WRITE FPDMA QUEUED
  60 02 00 00 00 00 01 12 f9 3a 30 40 00  2d+01:26:33.386  READ FPDMA QUEUED
  60 02 00 00 00 00 01 12 f9 38 30 40 00  2d+01:26:33.384  READ FPDMA QUEUED
  60 02 00 00 00 00 01 12 f9 36 30 40 00  2d+01:26:33.382  READ FPDMA QUEUED

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%     26741         -

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):       256 (0x0100)
SCT Support Level:                   1
Device State:                        Active (0)
Current Temperature:                    36 Celsius
Power Cycle Min/Max Temperature:     35/38 Celsius
Lifetime    Min/Max Temperature:     22/56 Celsius
Under/Over Temperature Limit Count:   0/0

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:           -40/70 Celsius
Temperature History Size (Index):    128 (43)

Index    Estimated Time   Temperature Celsius
  44    2019-01-01 03:26    37  ******************
 ...    ..( 15 skipped).    ..  ******************
  60    2019-01-01 03:42    37  ******************
  61    2019-01-01 03:43    36  *****************
 ...    ..( 20 skipped).    ..  *****************
  82    2019-01-01 04:04    36  *****************
  83    2019-01-01 04:05    35  ****************
 ...    ..(  2 skipped).    ..  ****************
  86    2019-01-01 04:08    35  ****************
  87    2019-01-01 04:09    36  *****************
  88    2019-01-01 04:10    36  *****************
  89    2019-01-01 04:11    35  ****************
 ...    ..( 40 skipped).    ..  ****************
   2    2019-01-01 04:52    35  ****************
   3    2019-01-01 04:53    36  *****************
 ...    ..(  4 skipped).    ..  *****************
   8    2019-01-01 04:58    36  *****************
   9    2019-01-01 04:59    37  ******************
 ...    ..( 30 skipped).    ..  ******************
  40    2019-01-01 05:30    37  ******************
  41    2019-01-01 05:31    36  *****************
  42    2019-01-01 05:32    36  *****************
  43    2019-01-01 05:33    36  *****************

SCT Error Recovery Control:
           Read: Disabled
          Write: Disabled

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 2) ==
0x01  0x008  4               8  ---  Lifetime Power-On Resets
0x01  0x018  6      1598892472  ---  Logical Sectors Written
0x01  0x020  6         1386302  ---  Number of Write Commands
0x01  0x028  6      3655763419  ---  Logical Sectors Read
0x01  0x030  6         7494155  ---  Number of Read Commands
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4             520  ---  Spindle Motor Power-on Hours
0x03  0x010  4             520  ---  Head Flying Hours
0x03  0x018  4              16  ---  Head Load Events
0x03  0x020  4               0  ---  Number of Reallocated Logical Sectors
0x03  0x028  4               0  ---  Read Recovery Attempts
0x03  0x030  4               0  ---  Number of Mechanical Start Failures
0x04  =====  =               =  ===  == General Errors Statistics (rev 1) ==
0x04  0x008  4               0  ---  Number of Reported Uncorrectable Errors
0x04  0x010  4               0  ---  Resets Between Cmd Acceptance and Completion
0x05  =====  =               =  ===  == Temperature Statistics (rev 1) ==
0x05  0x008  1              37  ---  Current Temperature
0x05  0x010  1              35  N--  Average Short Term Temperature
0x05  0x018  1               -  N--  Average Long Term Temperature
0x05  0x020  1              56  ---  Highest Temperature
0x05  0x028  1              22  ---  Lowest Temperature
0x05  0x030  1              41  N--  Highest Average Short Term Temperature
0x05  0x038  1              25  N--  Lowest Average Short Term Temperature
0x05  0x040  1               -  N--  Highest Average Long Term Temperature
0x05  0x048  1               -  N--  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              60  ---  Number of Hardware Resets
0x06  0x010  4              13  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
                                |||_ C monitored condition met
                                ||__ D supports DSN
                                |___ N normalized value

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
0x0009  2            1  Transition from drive PhyRdy to drive PhyNRdy
0x000a  2            2  Device-to-host register FISes sent due to a COMRESET
0x000b  2            0  CRC errors within host-to-device FIS
0x000d  2            0  Non-CRC errors within host-to-device FIS

Como você pode ver, as horas de inicialização da unidade são 520 (o que é preciso, há mais de um mês), mas os dois erros dizem que ocorreram às 10610 e 16878 - obviamente impossível.

O que está acontecendo aqui? Os erros são reais? Preocupante? Poderia haver algum tipo de "adulteração de odômetro" acontecendo aqui pelo meu fornecedor?

Atualizar

(Eu teria tido isso muito antes, mas o HGST Western Digital :/é realmente inútil (por que eles fornecem números de série de unidades OEM se não querem manter informações sobre eles?), E demoram para responder também.)

Quando as instalei, notei que elas não tinham as datas de fabricação nas etiquetas, como as minhas antigas, mas apenas gostei que o fabricante não as imprimia mais e não pensei mais nisso ... até Vi a grande resposta de Deltik. Não me ocorreu que estes (ou poderiam efetivamente) ser apagados.

Depois que minhas tentativas de obter a palavra oficial do fabricante (novo proprietário) falharam, puxei todas elas e sincronizei meu scanner de mesa com elas, nas configurações máximas. Ao fazer o velho zoom-e-aprimoramento, pude detectar evidências de que cada um havia sido apagado. Aqui está um dos exemplos mais fáceis de ler:

(Original 5717 × 8117px, 64,0MB .png omitido por piedade)

Visão geral .jpg reduzida e redigida:

Resolução original cortada .png da cena do crime (no canto superior direito do rótulo):

Os mais atentos de você provavelmente já podem lê-lo, mas aqui está um retângulo de níveis automáticos:

Então sim. Todas as unidades possuem marcações sutis que permanecem nessa tentativa deliberada de fraudar e são todas de março / abril / maio de 2015. Não é exatamente o que "novo" significa no final de novembro de 2018.

Além disso, como alguns dos outros comentadores, estou bastante chocado que o SMART possa ser subvertido dessa maneira. A maior parte do problema não será resolvida se puder ser redefinida?

Eu vou continuar isso, acredite em mim. Assista esse espaço.

Eu acho que sua suspeita de "adulteração de odômetro" está correta e é possível . Os erros registrados são provavelmente reais e definitivamente preocupantes porque indicam setores defeituosos na leitura. Provavelmente, o disco foi limpo antes de chegar até você; portanto, esses setores defeituosos provavelmente foram remapeados.

Quem vendeu o disco rígido redefine os atributos SMART para fazer com que pareça um novo disco rígido.

Anedota

Em 25 de julho de 2015, comprei seis discos rígidos muito semelhantes no goHardDrive.com. Quando verifiquei todos os discos, experimentei quase os mesmos sintomas:

root@box52:~# smartctl -a /dev/sdb
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.13.0-57-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Hitachi Deskstar 7K2000
Device Model:     Hitachi HDS722020ALA330
Serial Number:    JK1101B9G7U8NF
LU WWN Device Id: 5 000cca 222c38d7e
Firmware Version: JKAOA3MA
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    7200 rpm
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 2.6, 3.0 Gb/s
Local Time is:    Thu Jul 30 13:57:13 2015 CDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART STATUS RETURN: incomplete response, ATA output registers missing
SMART overall-health self-assessment test result: PASSED
Warning: This result is based on an Attribute check.

General SMART Values:
Offline data collection status:  (0x80) Offline data collection activity
                                        was never started.
                                        Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0) The previous self-test routine completed
                                        without error or no self-test has ever
                                        been run.
Total time to complete Offline
data collection:                (23653) seconds.
Offline data collection
capabilities:                    (0x5b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        No 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:        ( 394) minutes.
SCT capabilities:              (0x003d) 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          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000b   100   100   016    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   100   100   054    Pre-fail  Offline      -       0
  3 Spin_Up_Time            0x0007   100   100   024    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0012   100   100   000    Old_age   Always       -       1
  5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail  Always       -       2
  7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   100   100   020    Pre-fail  Offline      -       0
  9 Power_On_Hours          0x0012   100   100   000    Old_age   Always       -       0
 10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       1
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       1
193 Load_Cycle_Count        0x0012   100   100   000    Old_age   Always       -       1
194 Temperature_Celsius     0x0002   206   206   000    Old_age   Always       -       29 (Min/Max 25/29)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       2
197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always       -       0

SMART Error Log Version: 1
ATA Error Count: 2
        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 2 occurred at disk power-on lifetime: 31311 hours (1304 days + 15 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 ff 01 58 5d 08  Error: UNC 255 sectors at LBA = 0x085d5801 = 140335105

  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 00 00 58 5d 40 00   9d+05:13:00.528  READ DMA EXT
  25 00 00 00 57 5d 40 00   9d+05:12:59.801  READ DMA EXT
  25 00 00 00 56 5d 48 00   9d+05:12:59.797  READ DMA EXT
  25 00 00 00 55 5d 48 00   9d+05:12:59.794  READ DMA EXT
  25 00 00 00 54 5d 48 00   9d+05:12:59.789  READ DMA EXT

Error 1 occurred at disk power-on lifetime: 31243 hours (1301 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
  -- -- -- -- -- -- --
  40 51 ff 01 58 5d 08  Error: UNC 255 sectors at LBA = 0x085d5801 = 140335105

  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 00 00 58 5d 40 00  41d+18:29:24.394  READ DMA EXT
  25 00 00 00 57 5d 48 00  41d+18:29:24.388  READ DMA EXT
  25 00 00 00 56 5d 40 00  41d+18:29:24.383  READ DMA EXT
  25 00 00 00 55 5d 40 00  41d+18:29:24.376  READ DMA EXT
  25 00 00 00 54 5d 40 00  41d+18:29:24.371  READ DMA EXT

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%         0         -

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.

Se não fossem os erros SMART que eles esqueceram de apagar ou não puderam apagar, eu estaria convencido de que os discos que comprei eram novos.

Suspeito, telefonei para a Hitachi Global Storage Technologies e soube que pelo menos dois dos discos tiveram suas garantias ativadas em 24 de setembro de 2010, quase cinco anos antes de comprá-las. A garantia do fabricante expirou três anos depois.

Na minha reclamação ao vendedor, escrevi:

Apagar os valores dos atributos SMART é como zerar o odômetro em um carro. Um grande problema ao apagar os atributos SMART é que usuários finais como eu não têm como identificar se os setores foram realocados. Pode haver desde nenhum setor realocado até todos os setores sobressalentes realocados. Considerando que essas unidades têm quase cinco anos, com mais de 73,7% do tempo em que pelo menos uma delas foi ligada, é provável que haja setores remapeados que eu não conheça.

O goHardDrive.com me vendeu pelo menos um disco rígido com defeito, apagou conscientemente o histórico operacional dos seis discos rígidos e não revelou a natureza usada de nenhum dos discos rígidos no momento da venda.

Também tirei uma foto dos discos rígidos:

O disco rígido na parte inferior da imagem é um disco de referência do mesmo fabricante.

Observe que o disco de referência foi APR-2012impresso, mostrando quando foi fabricado. A data de fabricação foi removida dos seis discos que comprei, mas não o suficiente. Olhe para o disco do meio, onde você pode distinguir um pouco AUG-2010.

Isso certamente confirma o histórico dos discos: comprei discos rígidos usados ​​que tiveram seus "odômetros" redefinidos.

No final, o vendedor aceitou minha solicitação de devolução e enviei todos os discos para um reembolso total.

Cuidado com os discos rígidos que você compra! É bom que você os tenha verificado quanto a sinais de desgaste.