서버하드디스크smartctl -a /dev/sda
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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   112   082   006    Pre-fail  Always       -       42536648
  3 Spin_Up_Time            0x0003   097   096   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       130
  5 Reallocated_Sector_Ct   0x0033   099   099   010    Pre-fail  Always       -       512
  7 Seek_Error_Rate         0x000f   082   060   030    Pre-fail  Always       -       198502166
  9 Power_On_Hours          0x0032   044   044   000    Old_age   Always       -       49647
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       130
183 Runtime_Bad_Block       0x0032   099   099   000    Old_age   Always       -       1
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   001   001   000    Old_age   Always       -       414
188 Command_Timeout         0x0032   100   094   000    Old_age   Always       -       1 1 17
189 High_Fly_Writes         0x003a   094   094   000    Old_age   Always       -       6
190 Airflow_Temperature_Cel 0x0022   075   057   045    Old_age   Always       -       25 (Min/Max 23/26)
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       -       114
193 Load_Cycle_Count        0x0032   031   031   000    Old_age   Always       -       139385
194 Temperature_Celsius     0x0022   025   043   000    Old_age   Always       -       25 (0 8 0 0 0)
197 Current_Pending_Sector  0x0012   100   097   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   097   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       44763h+45m+17.244s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       104160167176
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       118508509965

SMART Error Log Version: 1
ATA Error Count: 414 (device log contains only the most recent five errors)
    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 414 occurred at disk power-on lifetime: 20926 hours (871 days + 22 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: WP 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
  -- -- -- -- -- -- -- --  ----------------  --------------------
  61 00 01 90 bb ec 40 00      05:57:25.938  WRITE FPDMA QUEUED
  60 00 20 ff ff ff 4f 00      05:57:25.889  READ FPDMA QUEUED
  60 00 08 ff ff ff 4f 00      05:57:25.888  READ FPDMA QUEUED
  61 00 08 ff ff ff 4f 00      05:57:25.888  WRITE FPDMA QUEUED
  27 00 00 00 00 00 e0 00      05:57:25.887  READ NATIVE MAX ADDRESS EXT [OBS-ACS-3]

Error 413 occurred at disk power-on lifetime: 20926 hours (871 days + 22 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 08 ff ff ff 4f 00      05:57:24.922  READ FPDMA QUEUED
  60 00 08 ff ff ff 4f 00      05:57:24.907  READ FPDMA QUEUED
  60 00 20 ff ff ff 4f 00      05:57:24.894  READ FPDMA QUEUED
  60 00 20 ff ff ff 4f 00      05:57:24.887  READ FPDMA QUEUED
  60 00 40 ff ff ff 4f 00      05:57:24.873  READ FPDMA QUEUED

Error 412 occurred at disk power-on lifetime: 20926 hours (871 days + 22 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 02 ff ff ff 4f 00      05:38:26.515  READ FPDMA QUEUED
  61 00 40 ff ff ff 4f 00      05:38:26.514  WRITE FPDMA QUEUED
  61 00 40 ff ff ff 4f 00      05:38:26.513  WRITE FPDMA QUEUED
  60 00 20 ff ff ff 4f 00      05:38:26.513  READ FPDMA QUEUED
  61 00 20 ff ff ff 4f 00      05:38:26.511  WRITE FPDMA QUEUED

Error 411 occurred at disk power-on lifetime: 20926 hours (871 days + 22 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 80 a2 22 6c 40 00      05:38:19.536  READ FPDMA QUEUED
  60 00 20 ff ff ff 4f 00      05:38:19.517  READ FPDMA QUEUED
  60 00 20 ff ff ff 4f 00      05:38:19.517  READ FPDMA QUEUED
  60 00 20 ff ff ff 4f 00      05:38:19.517  READ FPDMA QUEUED
  60 00 20 ff ff ff 4f 00      05:38:19.517  READ FPDMA QUEUED

Error 410 occurred at disk power-on lifetime: 20926 hours (871 days + 22 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 02 ff ff ff 4f 00      05:31:45.512  READ FPDMA QUEUED
  61 00 40 ff ff ff 4f 00      05:31:45.508  WRITE FPDMA QUEUED
  60 00 20 ff ff ff 4f 00      05:31:45.508  READ FPDMA QUEUED
  27 00 00 00 00 00 e0 00      05:31:45.506  READ NATIVE MAX ADDRESS EXT [OBS-ACS-3]
  ec 00 00 00 00 00 a0 00      05:31:45.506  IDENTIFY DEVICE

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%     19158         -

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.