Acabo de instalar varios discos duros nuevos en una máquina y noté que uno de ellos tenía dos errores informados, así que lo ejecuté smartctl -xy obtuve esto:

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 puede ver, las horas de encendido de la unidad son 520 (lo cual es exacto, como lo he tenido por menos de un mes), pero los dos errores dicen que ocurrieron a las 10610 horas y a las 16878 horas, obviamente imposible.

¿Que esta pasando aqui? ¿Son reales los errores? ¿Inquietante? ¿Podría haber algún tipo de "manipulación del odómetro" por parte de mi proveedor?

Actualizar

(Hubiera tenido esto mucho antes, pero HGST Western Digital :/es realmente inútil (¿por qué dan los números de serie de las unidades OEM si no van a mantener ninguna información sobre ellos?), Y también tardan en responder).

Cuando los instalé, me di cuenta de que no tenían las fechas de fabricación en las etiquetas como las anteriores, pero lo atribuí al fabricante para que no las imprimiera más y no pensé en nada más ... hasta Vi la gran respuesta de Deltik. No se me había ocurrido que se borrarían (o podrían efectivamente).

Después de que mis intentos de obtener noticias oficiales del fabricante (el nuevo propietario) fallaron, los saqué a todos y les coloqué mi escáner de superficie plana en la configuración máxima. Al hacer el viejo zoom y mejorar, pude detectar evidencia de que cada uno había sido borrado. Este es uno de los ejemplos más fáciles de leer:

(Original 5717 × 8117px, 64.0MB .png omitido por piedad)

Descripción general .jpg reducida y redactada:

Resolución original recortada .png de la escena del crimen (la esquina superior derecha de la etiqueta):

Los más ágiles de ustedes probablemente ya puedan leerlo, pero aquí hay un rectángulo de niveles automáticos:

Así que sí. Todas las unidades tienen marcas sutiles que quedan de este intento deliberado de defraudar, y son todas de marzo / abril / mayo de 2015. No es exactamente lo que significa "nuevo" a fines de noviembre de 2018.

Además, como algunos de los otros comentaristas lo están, estoy bastante sorprendido de que SMART se pueda subvertir de esta manera. ¿No desaparece la mayor parte del asunto si se puede restablecer?

Seguiré persiguiendo esto más, créeme. Mira este espacio.

Creo que su sospecha de "manipulación del odómetro" es correcta, y es posible . Los errores registrados son probablemente reales y definitivamente preocupantes porque indican sectores defectuosos al leerlos. El disco probablemente se borró antes de llegar a usted, por lo que esos sectores defectuosos probablemente se hayan reasignado.

Quien le haya vendido el disco duro restablecerá los atributos SMART para que parezca un disco duro nuevo.

Anécdota

El 25 de julio de 2015, compré seis discos duros muy similares en goHardDrive.com. Cuando revisé todos los discos, experimenté casi los mismos síntomas:

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.

Si no fuera por los errores SMART que olvidaron borrar o no pudieron borrar, me habría convencido de que los discos que compré eran nuevos.

Sospechoso, telefoneé a Hitachi Global Storage Technologies y supe que al menos dos de los discos tenían activadas sus garantías el 24 de septiembre de 2010, casi cinco años antes de comprarlos. La garantía del fabricante expiró 3 años después.

En mi queja al vendedor, escribí:

Borrar los valores de los atributos SMART es como poner a cero el cuentakilómetros en un automóvil. Un gran problema al borrar los atributos SMART es que los usuarios finales como yo no tienen forma de identificar si los sectores han sido reasignados. Podría haber desde cualquier lugar sin reasignar a todos los sectores de repuesto reasignados. Teniendo en cuenta que estas unidades tienen casi cinco años y más del 73.7% de las veces al menos una de las unidades estaba encendida, es muy probable que haya sectores reasignados que no conozco.

goHardDrive.com me vendió al menos un disco duro defectuoso, borró a sabiendas el historial operativo de los seis discos duros y no reveló la naturaleza utilizada de ninguno de los discos duros en el momento de la venta.

También tomé una fotografía de los discos duros:

El disco duro en la parte inferior de la imagen es un disco de referencia del mismo fabricante.

Observe que el disco de referencia se ha APR-2012impreso en él, que muestra cuándo se fabricó. La fecha de fabricación se eliminó de los seis discos que compré, pero no lo suficientemente bien. Mire el disco del medio, donde puede distinguir débilmente AUG-2010.

Esto seguramente confirma la historia de los discos: compré discos duros usados ​​a los que se les reiniciaron los "odómetros".

Al final, el vendedor aceptó mi solicitud de devolución y devolví todos los discos para obtener un reembolso completo.

¡Tenga cuidado con los discos duros que compra! Es bueno que los haya verificado en busca de signos residuales de desgaste.