得到后
WARNING: Your hard drive is failing
Device: /dev/sdb [SAT], 1 Offline uncorrectable sectors
我跑
$ sudo smartctl -a /dev/sdb
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.10.0-514.26.2.el7.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model: KingDian S200 60GB
Serial Number: 2017022100551
LU WWN Device Id: 0 000000 000000000
Firmware Version: P0707F1
User Capacity: 60,022,480,896 bytes [60.0 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: ACS-2 T13/2015-D revision 3
SATA Version is: SATA >3.1, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is: Tue Oct 3 10:56:08 2017 BST
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: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 120) seconds.
Offline data collection
capabilities: (0x11) SMART execute Offline immediate.
No Auto Offline data collection support.
Suspend Offline collection upon new
command.
No Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
No Selective Self-test supported.
SMART capabilities: (0x0002) Does not save 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: ( 10) minutes.
SMART Attributes Data Structure revision number: 1
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 100 100 050 Old_age Always - 0
5 Reallocated_Sector_Ct 0x0032 100 100 050 Old_age Always - 3
9 Power_On_Hours 0x0032 100 100 050 Old_age Always - 4486
12 Power_Cycle_Count 0x0032 100 100 050 Old_age Always - 13
160 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 1
161 Unknown_Attribute 0x0033 100 100 050 Pre-fail Always - 98
163 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 0
164 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 9724
165 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 9
166 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 1
167 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 5
168 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 1500
169 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 100
175 Program_Fail_Count_Chip 0x0032 100 100 050 Old_age Always - 0
176 Erase_Fail_Count_Chip 0x0032 100 100 050 Old_age Always - 0
177 Wear_Leveling_Count 0x0032 100 100 050 Old_age Always - 9602
178 Used_Rsvd_Blk_Cnt_Chip 0x0032 100 100 050 Old_age Always - 3
181 Program_Fail_Cnt_Total 0x0032 100 100 050 Old_age Always - 0
182 Erase_Fail_Count_Total 0x0032 100 100 050 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 050 Old_age Always - 13
194 Temperature_Celsius 0x0022 100 100 050 Old_age Always - 28
195 Hardware_ECC_Recovered 0x0032 100 100 050 Old_age Always - 3994818
196 Reallocated_Event_Count 0x0032 100 100 050 Old_age Always - 2414
197 Current_Pending_Sector 0x0032 100 100 050 Old_age Always - 3
198 Offline_Uncorrectable 0x0032 100 100 050 Old_age Always - 1
199 UDMA_CRC_Error_Count 0x0032 100 100 050 Old_age Always - 0
232 Available_Reservd_Space 0x0032 100 100 050 Old_age Always - 98
241 Total_LBAs_Written 0x0030 100 100 050 Old_age Offline - 36124
242 Total_LBAs_Read 0x0030 100 100 050 Old_age Offline - 10259
245 Unknown_Attribute 0x0032 100 100 050 Old_age Always - 9799
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 Extended offline Completed without error 00% 4486 -
Selective Self-tests/Logging not supported
详细smartctl输出显示：
$ sudo smartctl -x /dev/sdb
smartctl 6.2 2017-02-27 r4394 [x86_64-linux-3.10.0-514.26.2.el7.x86_64] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model: KingDian S200 60GB
Serial Number: 2017022100551
LU WWN Device Id: 0 000000 000000000
Firmware Version: P0707F1
User Capacity: 60,022,480,896 bytes [60.0 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: ACS-2 T13/2015-D revision 3
SATA Version is: SATA >3.1, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is: Tue Oct 3 15:49:27 2017 BST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is: Unavailable
APM level is: 128 (minimum power consumption without standby)
Rd look-ahead is: Enabled
Write cache is: Enabled
ATA Security is: Disabled, frozen [SEC2]
Wt Cache Reorder: Unavailable
=== 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: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 120) seconds.
Offline data collection
capabilities: (0x11) SMART execute Offline immediate.
No Auto Offline data collection support.
Suspend Offline collection upon new
command.
No Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
No Selective Self-test supported.
SMART capabilities: (0x0002) Does not save 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: ( 10) minutes.
SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAGS VALUE WORST THRESH FAIL RAW_VALUE
1 Raw_Read_Error_Rate -O--CK 100 100 050 - 0
5 Reallocated_Sector_Ct -O--CK 100 100 050 - 3
9 Power_On_Hours -O--CK 100 100 050 - 4491
12 Power_Cycle_Count -O--CK 100 100 050 - 13
160 Unknown_Attribute -O--CK 100 100 050 - 1
161 Unknown_Attribute PO--CK 100 100 050 - 98
163 Unknown_Attribute -O--CK 100 100 050 - 0
164 Unknown_Attribute -O--CK 100 100 050 - 10068
165 Unknown_Attribute -O--CK 100 100 050 - 9
166 Unknown_Attribute -O--CK 100 100 050 - 1
167 Unknown_Attribute -O--CK 100 100 050 - 5
168 Unknown_Attribute -O--CK 100 100 050 - 1500
169 Unknown_Attribute -O--CK 100 100 050 - 100
175 Program_Fail_Count_Chip -O--CK 100 100 050 - 0
176 Erase_Fail_Count_Chip -O--CK 100 100 050 - 0
177 Wear_Leveling_Count -O--CK 100 100 050 - 9687
178 Used_Rsvd_Blk_Cnt_Chip -O--CK 100 100 050 - 3
181 Program_Fail_Cnt_Total -O--CK 100 100 050 - 0
182 Erase_Fail_Count_Total -O--CK 100 100 050 - 0
192 Power-Off_Retract_Count -O--CK 100 100 050 - 13
194 Temperature_Celsius -O---K 100 100 050 - 28
195 Hardware_ECC_Recovered -O--CK 100 100 050 - 4314392
196 Reallocated_Event_Count -O--CK 100 100 050 - 2667
197 Current_Pending_Sector -O--CK 100 100 050 - 3
198 Offline_Uncorrectable -O--CK 100 100 050 - 1
199 UDMA_CRC_Error_Count -O--CK 100 100 050 - 0
232 Available_Reservd_Space -O--CK 100 100 050 - 98
241 Total_LBAs_Written ----CK 100 100 050 - 36474
242 Total_LBAs_Read ----CK 100 100 050 - 10529
245 Unknown_Attribute -O--CK 100 100 050 - 10146
||||||_ K auto-keep
|||||__ C event count
||||___ R error rate
|||____ S speed/performance
||_____ O updated online
|______ P prefailure warning
General Purpose Log Directory Version 1
SMART Log Directory Version 1 [multi-sector log support]
Address Access R/W Size Description
0x00 GPL,SL R/O 1 Log Directory
0x01 SL R/O 1 Summary SMART error log
0x02 SL R/O 1 Comprehensive SMART error log
0x03 GPL R/O 1 Ext. Comprehensive SMART error log
0x04 GPL,SL R/O 8 Device Statistics log
0x06 SL R/O 1 SMART self-test log
0x07 GPL R/O 1 Extended self-test log
0x10 GPL R/O 1 NCQ Command Error log
0x11 GPL R/O 1 SATA Phy Event Counters
0x30 GPL,SL R/O 9 IDENTIFY DEVICE data log
0x80-0x9f GPL,SL R/W 16 Host vendor specific log
0xde GPL VS 8 Device vendor specific log
SMART Extended Comprehensive Error Log Version: 1 (1 sectors)
No Errors Logged
SMART Extended Self-test Log Version: 1 (1 sectors)
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 4488 -
# 2 Extended offline Completed without error 00% 4487 -
# 3 Extended offline Completed without error 00% 4486 -
Selective Self-tests/Logging not supported
SCT Commands not supported
Device Statistics (GP Log 0x04)
Page Offset Size Value Description
1 ===== = = == General Statistics (rev 1) ==
1 0x008 4 13 Lifetime Power-On Resets
1 0x010 4 4491 Power-on Hours
1 0x018 6 2390408669 Logical Sectors Written
1 0x020 6 69617191 Number of Write Commands
1 0x028 6 690041929 Logical Sectors Read
1 0x030 6 6959725 Number of Read Commands
7 ===== = = == Solid State Device Statistics (rev 1) ==
7 0x008 1 0 Percentage Used Endurance Indicator
SATA Phy Event Counters (GP Log 0x11)
ID Size Value Description
0x0001 4 0 Command failed due to ICRC error
0x0002 4 0 R_ERR response for data FIS
0x0005 4 1 R_ERR response for non-data FIS
0x000a 4 17 Device-to-host register FISes sent due to a COMRESET
答案1
我过去也遇到过这个问题。 IIRC，“脱机不可纠正扇区”是指磁盘控制器（磁盘内部的控制器，而不是 PC 中的 SATA/SCSI 控制器）对某个扇区重复读取失败，并确定该扇区绝对无法使用。
那么，我必须声明该扇区对于使用它的文件系统来说是坏扇区吗？
不会。幸运的是，今天的磁盘会自动用备用扇区池中的好扇区替换坏扇区。因此，您不必向文件系统声明这些坏扇区，以便文件系统不再使用它们。当然，该池的大小是有限的（Available_Reservd_Space sectors我猜），一旦使用了所有备用扇区，坏扇区将仍然无法使用，您必须向您的文件系统声明它们。
那么，一切都很好，这是一条无害的消息？
并不真地。您的驱动器已多次尝试读取坏扇区，但每次都失败；因此它已排队等待更换，但驱动器无法自行完成此操作（它一直希望最终能够读取它）。在该扇区被新数据覆盖之前，它将保持“不可纠正”状态；一旦它被覆盖，或者如果驱动器以某种方式设法读取它，它将被重新映射并替换为备用扇区（在输出中smartctl，Offline_Uncorrectable将减 1 并Reallocated_Sector_Ct增加 1）。
我能做些什么？
在这种情况下，我通常会强制 RAID 1 阵列重新同步（正常磁盘 -> 有故障的磁盘），以便新扇区具有正确的内容。无论如何fsck，如果您有该分区的备份（您应该），请将备份与实际内容进行比较。
答案2
运行一个长时间的smartctl测试，如果返回阳性错误，则说明有问题，如果没有，则使用硬盘应该没问题。
smartctl -t long /dev/sdb
注意：请记住在测试之前备份硬盘中的数据，根据驱动器的状况，测试带来的压力可能会进一步损坏您的磁盘。
使用磁盘扫描uncorrectable sectors如果您的测试有错误，请尝试修复smartctl。