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Accepted
Chris Stryczynski
Asked: 2019-02-25 05:48:20 +0800 CST

smartctl 报告整体健康测试通过但测试失败？

  • 772

为什么SMART overall-health self-assessment test result: PASSED两次测试都失败时显示？

sudo smartctl -a /dev/sdc 
smartctl 6.6 2018-12-05 r4851 [x86_64-linux-4.14.98] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital AV-GP (AF)
Device Model:     WDC WD20EURS-63SPKY0
Serial Number:    WD-WMC1T2763021
LU WWN Device Id: 5 0014ee 6addb4b7c
Firmware Version: 80.00A80
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-2 (minor revision not indicated)
SATA Version is:  SATA 3.0, 3.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Sun Feb 24 13:43:30 2019 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:      ( 117) The previous self-test completed having
                    the read element of the test failed.
Total time to complete Offline 
data collection:        (27240) seconds.
Offline data collection
capabilities:            (0x7b) SMART execute Offline immediate.
                    Auto Offline data collection on/off support.
                    Suspend Offline collection upon new
                    command.
                    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:    (   2) minutes.
Extended self-test routine
recommended polling time:    ( 275) minutes.
Conveyance self-test routine
recommended polling time:    (   5) minutes.
SCT capabilities:          (0x70b5) SCT Status 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     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   180   179   021    Pre-fail  Always       -       5991
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       113
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x002e   200   200   000    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   092   092   000    Old_age   Always       -       6354
 10 Spin_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   253   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       56
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       46
193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       66
194 Temperature_Celsius     0x0022   122   114   000    Old_age   Always       -       28
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   100   253   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age   Offline      -       1

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: read failure       50%      6354         4377408
# 2  Extended offline    Completed: read failure       90%      6354         4377408

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.
hard-disk smartctl

2 个回答

  1. Best Answer

    因为您的 SMART 属性都处于良好状态，并且有No Errors Logged.

    请阅读：ATA 驱动器自检失败，但 SMART 健康状态为“通过”。这是怎么回事？

    如果驱动器未能通过自检，但 SMART 健康状态仍为“PASSED”，这通常意味着磁盘上有损坏的（不可纠正的=UNC）扇区。这意味着存储在该扇区的 ECC 数据与存储在该扇区的用户数据不一致，并且尝试读取该扇区失败并出现 UNC 错误。这可能是一次性的瞬态效应：磁盘写入扇区时突然断电会损坏 ECC 代码或数据，但扇区可以正确存储新数据。或者它可能是永久性影响：磁介质已被一点灰尘损坏，扇区无法正确存储新数据。

    如果磁盘可以单次读取该扇区的数据，并且损坏是永久性的，而不是暂时的，那么磁盘固件会将扇区标记为“坏”并分配一个备用扇区来替换它。但是，如果磁盘甚至一次都无法读取该扇区，那么它就不会重新分配该扇区，以期在将来的某个时间能够从中读取数据。写入不可读（损坏）的扇区将解决问题。如果损坏是暂时的，那么新的一致数据将被写入该扇区。如果损坏是永久性的，那么写入将强制扇区重新分配。有关如何强制该扇区重新分配（仅限 Linux）的说明，请参阅坏块 HOWTO 。

    磁盘仍然具有通过健康状态，因为固件没有发现其他故障迹象，例如伺服故障。

    此类磁盘通常可以通过使用磁盘制造商的“磁盘评估和修复”实用程序进行修复。注意：这可能会强制重新分配丢失的扇区，从而破坏或破坏磁盘上的任何文件系统。有关通用 Linux 指令，请参阅坏块 HOWTO。

    您可以尝试使用dd或使用某种“修复实用程序”来修复无法读取的扇区。首先备份您的驱动器！

    • 8

  2. 有了smartctl，没有简单的命令可以告诉你一切都好……smartctl -H是一个虚假的朋友，不值得信任。您必须查看完整的输出。

    SMART overall-health self-assessment test result: PASSED

    即使它说 PASSED，它也没有任何意义，所以只需忽略它并无论如何更换故障驱动器。

    Offline data collection status: 
    (0x00) Offline data collection activity was never started.
           Auto Offline Data Collection: Disabled.

    在旁注中，考虑启用Auto Offline Data Collection并设置smartd为定期运行自测并发送电子邮件通知。

    每 6354 小时运行一次自检太不可靠，而且如果没有定期测试，硬盘驱动器错误将无法检测到，直到为时已晚。

    • 6

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