在我的驱动器上运行smartctl，不确定这是好是坏

Question

我在我的合成光盘站的驱动器上出了问题。我在/var/log/消息中看到了以下错误：

 ata6.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
 ata6.00: failed command: SMART
 ata6.00: cmd b0/d0:01:00:4f:c2/00:00:00:00:00/00 tag 0 pio 512 in
          res 40/00:01:06:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
 ata6.00: status: { DRDY }

我不知道这意味着什么，但似乎存在一个问题，而且我的磁盘阵列由于100%的IO等待而无法使用，所以我想这可能是罪魁祸首。

然后，我对此运行了smartctl -a，并获得了以下输出：

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:  (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:                (  584) 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:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 335) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x3085) SCT Status 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   111   099   006    Pre-fail  Always       -       30661384
  3 Spin_Up_Time            0x0003   094   094   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       52
  5 Reallocated_Sector_Ct   0x0033   085   085   010    Pre-fail  Always       -       19440
  7 Seek_Error_Rate         0x000f   061   060   030    Pre-fail  Always       -       47258538769
  9 Power_On_Hours          0x0032   089   089   000    Old_age   Always       -       10454
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       51
183 Runtime_Bad_Block       0x0032   092   092   000    Old_age   Always       -       8
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   001   001   000    Old_age   Always       -       5384 5388 5388
189 High_Fly_Writes         0x003a   080   080   000    Old_age   Always       -       20
190 Airflow_Temperature_Cel 0x0022   072   046   045    Old_age   Always       -       28 (Min/Max 28/31)
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       -       49
193 Load_Cycle_Count        0x0032   094   094   000    Old_age   Always       -       12043
194 Temperature_Celsius     0x0022   028   054   000    Old_age   Always       -       28 (0 16 0 0 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       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       2440h+22m+08.819s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       17844897050
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       27458866514

我不明白这个输出是什么意思。有人能帮我把这个破译出来吗？我看到它说测试通过了，但我也看到了一些关于“失败前”、“老年”和表中的值似乎大于阈值的东西。

这辆车快死了吗？

Answer 1

与19,440重新分配扇区，你的驱动器已经在它的最后一条腿。

 5 Reallocated_Sector_Ct   0x0033   085   085   010    Pre-fail  Always       -       19440

这通常是我在旋转锈盘上看到的第一个属性。除了零原始值以外的任何其他内容都是一个潜在的问题，因为这意味着磁盘表面的部分部分在内部被标记为“坏”，并且保留的空间现在正在填补坏扇区。随着大量的重新分配扇区，您将看到性能问题，最终，丢失的数据。

在SMART将其实际显示为失败之前，它必须有更多的坏部门，但您可以肯定，它现在正在失败，应该被替换。

Answer 2

原来那是驱动器。当我将驱动器从数组中移除时，即使它处于降级模式，该数组也立即可用。