运行 Ubuntu 12.04。今天早上，我开始在根驱动器（EDGE™ Boost Pro Plus 7mm SSD 240GB）上收到磁盘故障警告。
查看 SMART 数据可发现，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，而且似乎是正确的（该值在 SMART 数据窗口中也显示为温度）。
这是否可能反映出真正的硬件故障？我应该尝试获得保修更换吗？
如果没有，有没有简单的方法可以让 Ubuntu 忽略 SMART 数据的这个属性？我宁愿不完全禁用 SMART 警告。
编辑：以下是 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.
答案1
SSD 的 SMART 属性 231 不指示任何与温度有关的内容。事实上，如果标准化值小于 2，通常表示 SSD 的使用寿命已结束（对于此属性，值越高越好）。大多数制造商都使用此字段来指示单元的使用时间超过了设计周期。
根据维基百科关于 SMART 的文章我认为这个属性的含义不明确。
231 | 0xE7 | Temperature | Drive Temperature 231 | 0xE7 | SSD Life Left | Indicates the approximate SSD life left, in terms of program/erase cycles or Flash blocks currently available for use.
我认为 Ubuntu 可能存在错误，将该属性显示为 SSD 的温度字段。请尝试使用实时映像中的 14.04/14.10，看看它是否仍显示为温度字段。如果是，请报告错误。
以下是制造商在其文档中使用的内容：
带介质使用的有限保修提供保修期或直到估计寿命指标达到 SMART 属性 231 报告的 1。
SSD 剩余使用寿命 231
[...]
规范化值范围：
100 = 最好 = SSD 仍保持完整使用寿命
1 = 最差 = 剩余闪存块不足以支持 SSD 正常运行