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Smart 每天都會在我的資料中心伺服器 SSD 之一上報告以下錯誤：
This message was generated by the smartd daemon running on:
host name: x
DNS domain: x
The following warning/error was logged by the smartd daemon:
Device: /dev/sda [SAT], 1 Currently unreadable (pending) sectors
Device info:
INTEL SSDSC2BB480G7, S/N:PHDV701605XT480BGN, WWN:5-5cd2e4-14d60bdf9, FW:N2010101, 480 GB
For details see host's SYSLOG.
You can also use the smartctl utility for further investigation.
The original message about this issue was sent at Tue Feb 6 18:43:41 2018 EST
Another message will be sent in 24 hours if the problem persists.
Syslog，不顯示其他資訊。
我在其他地方讀到，我需要執行擴展的智慧測試，然後寫入測試結果中指定的磁區，以強制磁碟機將其標記為壞磁區並重新分配。
我進行了長時間的測試：
sudo smartctl -t long /dev/sda1
但是 sudo smartctl -a /dev/sda1 的輸出顯示測試完成且沒有錯誤？
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.4.98-2-pve] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model: INTEL SSDSC2BB480G7
Serial Number: PHDV701605XT480BGN
LU WWN Device Id: 5 5cd2e4 14d60bdf9
Firmware Version: N2010101
User Capacity: 480,103,981,056 bytes [480 GB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: Solid State Device
Form Factor: 2.5 inches
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: ACS-3 T13/2161-D revision 5
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Wed Feb 21 04:58:20 2018 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: PASSED
General SMART Values:
Offline data collection status: (0x02) Offline data collection activity
was completed without error.
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: ( 72) 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: ( 2) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x003d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
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
5 Reallocated_Sector_Ct 0x0032 100 100 000 Old_age Always - 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 8753
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 11
170 Unknown_Attribute 0x0033 100 100 010 Pre-fail Always - 0
171 Unknown_Attribute 0x0032 100 100 000 Old_age Always - 0
172 Unknown_Attribute 0x0032 100 100 000 Old_age Always - 0
174 Unknown_Attribute 0x0032 100 100 000 Old_age Always - 9
175 Program_Fail_Count_Chip 0x0033 100 100 010 Pre-fail Always - 270807480494
183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always - 0
184 End-to-End_Error 0x0033 100 100 090 Pre-fail Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0022 070 064 000 Old_age Always - 30 (Min/Max 16/37)
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 9
194 Temperature_Celsius 0x0022 100 100 000 Old_age Always - 30
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 1
199 UDMA_CRC_Error_Count 0x003e 100 100 000 Old_age Always - 0
225 Unknown_SSD_Attribute 0x0032 100 100 000 Old_age Always - 415161
226 Unknown_SSD_Attribute 0x0032 100 100 000 Old_age Always - 1126
227 Unknown_SSD_Attribute 0x0032 100 100 000 Old_age Always - 51
228 Power-off_Retract_Count 0x0032 100 100 000 Old_age Always - 525179
232 Available_Reservd_Space 0x0033 100 100 010 Pre-fail Always - 0
233 Media_Wearout_Indicator 0x0032 099 099 000 Old_age Always - 0
234 Unknown_Attribute 0x0032 100 100 000 Old_age Always - 0
241 Total_LBAs_Written 0x0032 100 100 000 Old_age Always - 415161
242 Total_LBAs_Read 0x0032 100 100 000 Old_age Always - 433149
243 Unknown_Attribute 0x0032 100 100 000 Old_age Always - 979238
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% 8753 -
# 2 Extended offline Completed without error 00% 8752 -
# 3 Extended offline Completed without error 00% 8464 -
# 4 Short offline Completed without error 00% 888 -
# 5 Short offline Completed without error 00% 886 -
# 6 Short offline Completed without error 00% 885 -
# 7 Short offline Completed without error 00% 0 -
# 8 Short offline Completed without error 00% 0 -
# 9 Short offline Completed without error 00% 0 -
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.
真的有問題嗎？
答案1
對於驅動器來說，只有 1 個待處理磁區不是問題。忽略它，直到它顯著增加。
儘管您可以嘗試使用以下說明修復它（首先備份資料！）：https://github.com/smartmontools/smartmontools/blob/master/www/BadBlockHowTo.txt
您也可以將您的磁碟機 SMART 報告與其他磁碟機報告進行比較這個 SMART 報告儲存庫。
答案2
最大的問題是該磁區是否有您關心的數據，嘗試讀取您的資料檔案並查看是否遺失了某些內容。
在任何情況下，為了避免重複出現此錯誤訊息，您將需要覆蓋資料以使磁碟機忽略此錯誤。如果沒有其他用途，修剪該區塊也應該可行。您可以嘗試對檔案系統執行 fstrim 來清除此問題。
SMART 長測試對媒體進行隨機測試，並不是完整的測試，因此即使存在錯誤，它也可能會成功，特別是如果這是可恢復的錯誤，因為製造商不希望出現單一待處理錯誤導致您對驅動器進行RMA。