SSD智能故障-两个温度值？

Question

运行Ubuntu12.04。今天早上，我开始在我的根驱动器上收到磁盘故障警告(EDGE™Boost Pro Plus 7 7mm 240™)。

查看智能数据显示，失败的属性是231温度，其值为1C (显然是错误的)。奇怪的是ID 194也是温度，而且看起来是正确的(这个值也显示为智能数据窗口中的温度。

这有可能反映出真正的硬件故障吗？我应该试着换个保修吗？

如果没有，有什么简单的方法可以让Ubuntu忽略智能数据的这个属性呢？我不想完全禁用智能警告。

编辑:下面smartctl的结果

smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.11.0-15-generic] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Device Model:     EDGE Boost Pro 7mm SSD
Serial Number:    ED140408AS1326965
LU WWN Device Id: 0 000120 000000000
Firmware Version: 541ABBF0
User Capacity:    240,057,409,536 bytes [240 GB]
Sector Size:      512 bytes logical/physical
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   8
ATA Standard is:  ACS-2 revision 3
Local Time is:    Thu Dec 11 09:53:48 2014 EST
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: FAILED!
Drive failure expected in less than 24 hours. SAVE ALL DATA.
See vendor-specific Attribute list for failed Attributes.

General SMART Values:
Offline data collection status:  (0x05) Offline data collection activity
                    was aborted by an interrupting command from host.
                    Auto Offline Data Collection: Disabled.
Self-test execution status:      (  25) The self-test routine was aborted by
                    the host.
Total time to complete Offline 
data collection:        (    0) seconds.
Offline data collection
capabilities:            (0x79) SMART execute Offline immediate.
                    No Auto Offline data collection 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:    (  48) minutes.
Conveyance self-test routine
recommended polling time:    (   2) minutes.
SCT capabilities:          (0x0025) SCT Status 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     0x0032   095   095   050    Old_age   Always       -       37836672
  5 Reallocated_Sector_Ct   0x0033   091   091   003    Pre-fail  Always       -       0
  9 Power_On_Hours          0x0032   096   096   000    Old_age   Always       -       83159156789007
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       35
171 Unknown_Attribute       0x000a   100   100   000    Old_age   Always       -       0
172 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       0
174 Unknown_Attribute       0x0030   000   000   000    Old_age   Offline      -       0
177 Wear_Leveling_Count     0x0000   000   000   000    Old_age   Offline      -       99
181 Program_Fail_Cnt_Total  0x000a   100   100   000    Old_age   Always       -       0
182 Erase_Fail_Count_Total  0x0032   100   100   000    Old_age   Always       -       0
187 Reported_Uncorrect      0x0012   099   099   000    Old_age   Always       -       1
190 Airflow_Temperature_Cel 0x0000   029   041   000    Old_age   Offline      -       29 (Min/Max 18/41)
194 Temperature_Celsius     0x0022   029   041   000    Old_age   Always       -       29 (Min/Max 18/41)
195 Hardware_ECC_Recovered  0x001c   120   120   000    Old_age   Offline      -       37836672
196 Reallocated_Event_Count 0x0033   100   100   003    Pre-fail  Always       -       0
201 Soft_Read_Error_Rate    0x001c   120   120   000    Old_age   Offline      -       37836672
204 Soft_ECC_Correction     0x001c   120   120   000    Old_age   Offline      -       37836672
230 Head_Amplitude          0x0013   100   100   000    Pre-fail  Always       -       100
231 Temperature_Celsius     0x0013   001   001   010    Pre-fail  Always   FAILING_NOW 68719476737
233 Media_Wearout_Indicator 0x0032   000   000   000    Old_age   Always       -       5891
234 Unknown_Attribute       0x0032   000   000   000    Old_age   Always       -       0
241 Total_LBAs_Written      0x0032   000   000   000    Old_age   Always       -       0
242 Total_LBAs_Read         0x0032   000   000   000    Old_age   Always       -       0

SMART Error Log not supported
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Aborted by host               90%      3853         -
# 2  Extended offline    Aborted by host               10%      1990         -
# 3  Conveyance offline  Aborted by host               90%      1990         -
# 4  Short offline       Aborted by host               90%      1990         -

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.

Answer 1

SSD的SMART属性231并不表示与温度有关的任何内容。事实上，如果归一化值是某个值，那么<2通常表示SSD生命周期的结束(对于这个属性，高值意味着更好)。大多数制造商都在使用这一领域来表示单元格的使用超过了设计周期。

基于维基百科关于智能的文章，我认为这个属性有一个模糊的含义。

231 \ 0xE7 \_

我认为将这个属性显示为SSD的温度场可能是Ubuntu的一个缺陷。请尝试14.04/14.10从一个实时图像，看看它是否仍然显示为这样。如果是，请把它报告为一个错误。

以下是制造商在文档中使用的内容：

希捷

使用媒体的有限保证为保修期或直到SMART属性231报告的估计寿命指标达到1为止。

金士顿

231个SSD寿命离开...归一化值范围: 100 =最佳=完整SSD寿命保持 1=最坏=不足的闪存块仍在正常运行