Problema no Disco Rígido - Erro de E / S de Buffer no dev / sdb. Posso consertar essa unidade ou pelo menos recuperar os dados?

1

Não consigo mais montar meu disco rígido. O dmesg -w mostra esse tipo de erro.

[14258.478443] usb 3-4: new high-speed USB device number 16 using xhci_hcd
[14258.620177] usb-storage 3-4:1.0: USB Mass Storage device detected
[14258.620625] scsi host6: usb-storage 3-4:1.0
[14259.629271] scsi 6:0:0:0: Direct-Access        Mass  Storage Device        PQ: 0 ANSI: 0
[14259.654286] sd 6:0:0:0: [sdb] 976773166 512-byte logical blocks: (500 GB/466 GiB)
[14259.654484] sd 6:0:0:0: [sdb] Write Protect is off
[14259.654488] sd 6:0:0:0: [sdb] Mode Sense: 03 00 00 00
[14259.654671] sd 6:0:0:0: [sdb] No Caching mode page found
[14259.654678] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[14259.775713] scsi_io_completion: 18 callbacks suppressed
[14259.775727] sd 6:0:0:0: [sdb] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
[14259.775736] sd 6:0:0:0: [sdb] tag#0 Sense Key : 0x3 [current] 
[14259.775741] sd 6:0:0:0: [sdb] tag#0 ASC=0x11 ASCQ=0x0 
[14259.775748] sd 6:0:0:0: [sdb] tag#0 CDB: opcode=0x28 28 00 00 00 00 00 00 00 02 00
[14259.775751] print_req_error: 18 callbacks suppressed
[14259.775754] print_req_error: critical medium error, dev sdb, sector 0
[14259.775764] buffer_io_error: 26 callbacks suppressed
[14259.775767] Buffer I/O error on dev sdb, logical block 0, async page read
[14259.843377] sd 6:0:0:0: [sdb] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
[14259.843386] sd 6:0:0:0: [sdb] tag#0 Sense Key : 0x3 [current] 
[14259.843392] sd 6:0:0:0: [sdb] tag#0 ASC=0x11 ASCQ=0x0 
[14259.843399] sd 6:0:0:0: [sdb] tag#0 CDB: opcode=0x28 28 00 00 00 00 02 00 00 02 00
[14259.843403] print_req_error: critical medium error, dev sdb, sector 2
[14259.843413] Buffer I/O error on dev sdb, logical block 1, async page read
[14259.868776] sd 6:0:0:0: [sdb] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
[14259.868784] sd 6:0:0:0: [sdb] tag#0 Sense Key : 0x3 [current] 
[14259.868790] sd 6:0:0:0: [sdb] tag#0 ASC=0x11 ASCQ=0x0 
[14259.868797] sd 6:0:0:0: [sdb] tag#0 CDB: opcode=0x28 28 00 00 00 00 04 00 00 02 00
[14259.868800] print_req_error: critical medium error, dev sdb, sector 4
[14259.868810] Buffer I/O error on dev sdb, logical block 2, async page read
[14259.894152] sd 6:0:0:0: [sdb] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
[14259.894160] sd 6:0:0:0: [sdb] tag#0 Sense Key : 0x3 [current] 
[14259.894166] sd 6:0:0:0: [sdb] tag#0 ASC=0x11 ASCQ=0x0 
[14259.894172] sd 6:0:0:0: [sdb] tag#0 CDB: opcode=0x28 28 00 00 00 00 06 00 00 02 00
[14259.894177] print_req_error: critical medium error, dev sdb, sector 6
[14259.894186] Buffer I/O error on dev sdb, logical block 3, async page read
[14259.919445] sd 6:0:0:0: [sdb] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
[14259.919448] sd 6:0:0:0: [sdb] tag#0 Sense Key : 0x3 [current] 
[14259.919449] sd 6:0:0:0: [sdb] tag#0 ASC=0x11 ASCQ=0x0 
[14259.919451] sd 6:0:0:0: [sdb] tag#0 CDB: opcode=0x28 28 00 00 00 00 00 00 00 02 00
[14259.919453] print_req_error: critical medium error, dev sdb, sector 0
[14259.919456] Buffer I/O error on dev sdb, logical block 0, async page read
[14259.944756] sd 6:0:0:0: [sdb] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
[14259.944763] sd 6:0:0:0: [sdb] tag#0 Sense Key : 0x3 [current] 
[14259.944768] sd 6:0:0:0: [sdb] tag#0 ASC=0x11 ASCQ=0x0 
[14259.944775] sd 6:0:0:0: [sdb] tag#0 CDB: opcode=0x28 28 00 00 00 00 02 00 00 02 00
[14259.944779] print_req_error: critical medium error, dev sdb, sector 2
[14259.944788] Buffer I/O error on dev sdb, logical block 1, async page read
[14259.970120] sd 6:0:0:0: [sdb] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
[14259.970128] sd 6:0:0:0: [sdb] tag#0 Sense Key : 0x3 [current] 
[14259.970133] sd 6:0:0:0: [sdb] tag#0 ASC=0x11 ASCQ=0x0 
[14259.970139] sd 6:0:0:0: [sdb] tag#0 CDB: opcode=0x28 28 00 00 00 00 04 00 00 02 00
[14259.970142] print_req_error: critical medium error, dev sdb, sector 4
[14259.970151] Buffer I/O error on dev sdb, logical block 2, async page read
[14259.995547] sd 6:0:0:0: [sdb] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
[14259.995554] sd 6:0:0:0: [sdb] tag#0 Sense Key : 0x3 [current] 
[14259.995559] sd 6:0:0:0: [sdb] tag#0 ASC=0x11 ASCQ=0x0 
[14259.995564] sd 6:0:0:0: [sdb] tag#0 CDB: opcode=0x28 28 00 00 00 00 06 00 00 02 00
[14259.995568] print_req_error: critical medium error, dev sdb, sector 6
[14259.995575] Buffer I/O error on dev sdb, logical block 3, async page read
[14259.995600] ldm_validate_partition_table(): Disk read failed.
[14260.020959] sd 6:0:0:0: [sdb] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
[14260.020964] sd 6:0:0:0: [sdb] tag#0 Sense Key : 0x3 [current] 
[14260.020968] sd 6:0:0:0: [sdb] tag#0 ASC=0x11 ASCQ=0x0 
[14260.020973] sd 6:0:0:0: [sdb] tag#0 CDB: opcode=0x28 28 00 00 00 00 00 00 00 02 00
[14260.020976] print_req_error: critical medium error, dev sdb, sector 0
[14260.020982] Buffer I/O error on dev sdb, logical block 0, async page read
[14260.046308] sd 6:0:0:0: [sdb] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
[14260.046317] sd 6:0:0:0: [sdb] tag#0 Sense Key : 0x3 [current] 
[14260.046323] sd 6:0:0:0: [sdb] tag#0 ASC=0x11 ASCQ=0x0 
[14260.046329] sd 6:0:0:0: [sdb] tag#0 CDB: opcode=0x28 28 00 00 00 00 02 00 00 02 00
[14260.046334] print_req_error: critical medium error, dev sdb, sector 2
[14260.046343] Buffer I/O error on dev sdb, logical block 1, async page read
[14260.299886]  sdb: unable to read partition table
[14260.300948] sd 6:0:0:0: [sdb] Attached SCSI disk

Como este é um harddisk bastante novo, não espero que seja uma falha de hardware.

Após as sugestões on-line, realizei o teste SMART na unidade. smartctl -a /dev/sdb apresenta o seguinte:

smartctl 6.6 2017-11-05 r4594 [x86_64-linux-4.14.15-1-ARCH] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Laptop HDD
Device Model:     ST500LT012-9WS142
Serial Number:    W0VC20VP
LU WWN Device Id: 5 000c50 06a06b3ef
Firmware Version: 0002SDM1
User Capacity:    500,107,862,016 bytes [500 GB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5400 rpm
Form Factor:      2.5 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 2.6, 3.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Mon Feb 12 13:18:08 2018 +0545
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:      (   0) The previous self-test routine completed
                    without error or no self-test has ever 
                    been run.
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:    ( 104) minutes.
Conveyance self-test routine
recommended polling time:    (   2) minutes.
SCT capabilities:          (0x1035) SCT Status supported.
                    SCT Feature Control 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   113   099   006    Pre-fail  Always       -       53867432
  3 Spin_Up_Time            0x0003   099   099   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   096   096   020    Old_age   Always       -       5050
  5 Reallocated_Sector_Ct   0x0033   100   100   036    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   074   060   030    Pre-fail  Always       -       21598024463
  9 Power_On_Hours          0x0032   093   093   000    Old_age   Always       -       6613 (201 84 0)
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   096   096   020    Old_age   Always       -       4993
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   099   000    Old_age   Always       -       1
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   078   051   045    Old_age   Always       -       22 (Min/Max 22/22)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       1421
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       1002
193 Load_Cycle_Count        0x0032   001   001   000    Old_age   Always       -       204738
194 Temperature_Celsius     0x0022   022   049   000    Old_age   Always       -       22 (0 11 0 0 0)
196 Reallocated_Event_Count 0x000f   094   094   030    Pre-fail  Always       -       5867 (9486 0)
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       3
240 Head_Flying_Hours       0x0000   094   094   000    Old_age   Offline      -       5867 (37 14 0)
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       3729147456
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       564102414
254 Free_Fall_Sensor        0x0032   100   100   000    Old_age   Always       -       0

SMART Error Log Version: 1
No Errors Logged

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%      4047         -
# 2  Short offline       Aborted by host               10%      4047         -
# 3  Offline             Aborted by host               90%      4047         -
# 4  Offline             Aborted by host               90%      3560         -
# 5  Offline             Aborted by host               90%      3560         -
# 6  Offline             Aborted by host               90%      2896         -
# 7  Short offline       Completed without error       00%       212         -
# 8  Short offline       Aborted by host               90%       212         -
# 9  Offline             Aborted by host               90%       212         -

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.

Não consigo interpretar os dados brutos, mas como todos os valores estão acima do limite, não deveria ser possível exportar pelo menos dd dados do disco rígido? dd of=/dev/null if=/dev/sdb falha com o mesmo erro de entrada / saída. O mesmo acontece com debugfs \dev\sdb

Existe alguma outra coisa que eu possa tentar fazer? Os dados não são muito importantes, por isso estou disposto a sacrificá-los se o disco rígido puder ser consertado. No entanto, se houver uma maneira de recuperar os dados, também gostaria de tentar.

smartctl -l selftest /dev/sdb apresenta o seguinte após um breve teste.

smartctl 6.6 2017-11-05 r4594 [x86_64-linux-4.14.15-1-ARCH] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
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%      1242         -
# 2  Extended offline    Aborted by host               90%      1240         -
# 3  Extended offline    Aborted by host               90%      1239         -
# 4  Short offline       Completed without error       00%      1239         -
# 5  Short offline       Aborted by host               90%      1239         -
# 6  Short offline       Aborted by host               90%      1239         -
# 7  Short offline       Completed without error       00%      1238         -
# 8  Short offline       Completed without error       00%      1236         -
# 9  Short offline       Aborted by host               60%      1236         -
#10  Short offline       Aborted by host               80%      1236         -
#11  Short offline       Completed without error       00%       298         -
#12  Short offline       Completed without error       00%         1         -

Obrigado pelo seu tempo.

    
por Kitty Hawk 12.02.2018 / 12:37

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