Skip to main content

S.M.A.R.T.

apk add smartmontools

# 检查是否有 SMART 支持
smartctl -i /dev/sda1

# 全部信息
smartctl -a /dev/sda
# 包含额外信息
smartctl -x /dev/sda
# 健康信息
smartctl -H /dev/sdb

# 开启监控
smartctl --smart=on --offlineauto=on --saveauto=on /dev/sdb

# 检查
smartctl -t short /dev/sda
# 检查完成查看结果
smartctl -H /dev/sda

smartd

# 扫描所有
DEVICESCAN
flagfor
-a默认: -H -f -t -l error -l selftest -C 197 -U 198
-pReport 'Prefailure'
-uReport 'Usage'
-U IDReport if Offline Uncorrectable count non-zero
-C IDReport if Current Pending Sector count non-zero
-t-pu
-R IDTrack for -p,-u,-t
-r IDAlso report Raw values
-I IDIgnore for -p,-u,-t
-i IDIgnore for -f
-d TYPEDevice type: ata, scsi, marvell, removable, 3ware,N, hpt,L/M/N
-T TYPEtolerance: normal, permissive
-m ADDSend warning email to ADD for -H, -l error, -l selftest, -f
-HMonitor Health Status, report if failed
-l TYPEMonitor log: error, selftest
-fMonitor failure of any 'Usage' Attributes
-W D,I,CMonitor Temperature D)ifference, I)nformal limit, C)ritical limit
-n MODEnever, sleep, standby, idle

硬盘生命周期

  • 硬性限制
    • cycle count over device lifetime - 10000
    • load-unload count over device lifetime - 300000
  • 使用时长
    • Accumulated power on time

一年大约 8640 小时

Accumulated power on time, hours:minutes 11364:04
Manufactured in week 24 of year 2016
Specified cycle count over device lifetime: 10000
Accumulated start-stop cycles: 151
Specified load-unload count over device lifetime: 300000
Accumulated load-unload cycles: 239
Elements in grown defect list: 8

检查错误情况

Error counter log:
Errors Corrected by Total Correction Gigabytes Total
ECC rereads/ errors algorithm processed uncorrected
fast | delayed rewrites corrected invocations [10^9 bytes] errors
read: 232366863 0 0 232366863 0 44654.348 0
write: 0 0 0 0 0 21812.815 0
verify: 81711711 0 0 81711711 0 61007.393 0

Non-medium error count: 4

SSD 生命周期和健康状况

  • 查看属性表
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
9 Power_On_Hours 0x0032 097 097 000 Old_age Always - 13543
12 Power_Cycle_Count 0x0032 098 098 000 Old_age Always - 1293
177 Wear_Leveling_Count 0x0013 090 090 000 Pre-fail Always - 50
179 Used_Rsvd_Blk_Cnt_Tot 0x0013 100 100 010 Pre-fail Always - 0
181 Program_Fail_Cnt_Total 0x0032 100 100 010 Old_age Always - 0
182 Erase_Fail_Count_Total 0x0032 100 100 010 Old_age Always - 0
183 Runtime_Bad_Block 0x0013 100 099 010 Pre-fail Always - 0
187 Uncorrectable_Error_Cnt 0x0032 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0032 053 047 000 Old_age Always - 47
195 ECC_Error_Rate 0x001a 200 200 000 Old_age Always - 0
199 CRC_Error_Count 0x003e 097 097 000 Old_age Always - 2988
235 POR_Recovery_Count 0x0012 099 099 000 Old_age Always - 147
241 Total_LBAs_Written 0x0032 099 099 000 Old_age Always - 10909128771

SSD output

  • Total_LBAs_Written
    • LBA = Logical block addressing
    • TBW = LBA/Sector
    • TBW = 21811089703/512 ~= 11TB - 实际
    • TBW = 120GB * 3000 ~= 300TB - 总计
=== START OF INFORMATION SECTION ===
Model Family: Samsung based SSDs
Device Model: Samsung SSD 750 EVO 120GB
Serial Number: S2TTNDAH131915J
LU WWN Device Id: 5 000000 000000000
Firmware Version: MAT01B6Q
User Capacity: 120,034,123,776 bytes [120 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
TRIM Command: Available
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2, ATA8-ACS T13/1699-D revision 4c
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Fri Oct 8 00:56:37 2021 CST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is: Unavailable
APM feature is: Unavailable
Rd look-ahead is: Enabled
Write cache is: Enabled
DSN feature is: Unavailable
ATA Security is: Disabled, frozen [SEC2]
Wt Cache Reorder: 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: ( 0) seconds.
Offline data collection
capabilities: (0x53) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
No Offline surface scan supported.
Self-test supported.
No 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: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 64) 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 FLAGS VALUE WORST THRESH FAIL RAW_VALUE
5 Reallocated_Sector_Ct PO--CK 100 100 010 - 0
9 Power_On_Hours -O--CK 096 096 000 - 16599
12 Power_Cycle_Count -O--CK 098 098 000 - 1558
177 Wear_Leveling_Count PO--C- 031 031 000 - 344
179 Used_Rsvd_Blk_Cnt_Tot PO--C- 100 100 010 - 0
181 Program_Fail_Cnt_Total -O--CK 100 100 010 - 0
182 Erase_Fail_Count_Total -O--CK 100 100 010 - 0
183 Runtime_Bad_Block PO--C- 100 099 010 - 0
187 Uncorrectable_Error_Cnt -O--CK 100 100 000 - 0
190 Airflow_Temperature_Cel -O--CK 056 039 000 - 44
195 ECC_Error_Rate -O-RC- 200 200 000 - 0
199 CRC_Error_Count -OSRCK 099 099 000 - 49
235 POR_Recovery_Count -O--C- 099 099 000 - 126
241 Total_LBAs_Written -O--CK 099 099 000 - 21811089703
||||||_ 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
0x06 SL R/O 1 SMART self-test log
0x07 GPL R/O 1 Extended self-test log
0x09 SL R/W 1 Selective self-test log
0x10 GPL R/O 1 NCQ Command Error log
0x11 GPL R/O 1 SATA Phy Event Counters log
0x13 GPL R/O 1 SATA NCQ Send and Receive log
0x30 GPL,SL R/O 9 IDENTIFY DEVICE data log
0x80-0x9f GPL,SL R/W 16 Host vendor specific log
0xa1 SL VS 16 Device vendor specific log
0xa5 SL VS 16 Device vendor specific log
0xce SL VS 16 Device vendor specific log
0xe0 GPL,SL R/W 1 SCT Command/Status
0xe1 GPL,SL R/W 1 SCT Data Transfer

SMART Extended Comprehensive Error Log Version: 1 (1 sectors)
No Errors Logged

SMART Extended Self-test Log Version: 1 (1 sectors)
No self-tests have been logged. [To run self-tests, use: smartctl -t]

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
255 0 65535 Read_scanning was never started
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.

SCT Status Version: 3
SCT Version (vendor specific): 256 (0x0100)
Device State: SCT command executing in background (5)
Current Temperature: 44 Celsius
Power Cycle Min/Max Temperature: 40/56 Celsius
Lifetime Min/Max Temperature: 0/70 Celsius
Under/Over Temperature Limit Count: 3758096367/4294901760
SMART Status: 0xffff (Reserved)

SCT Temperature History Version: 2
Temperature Sampling Period: 1 minute
Temperature Logging Interval: 10 minutes
Min/Max recommended Temperature: 0/70 Celsius
Min/Max Temperature Limit: 0/70 Celsius
Temperature History Size (Index): 128 (8)

Index Estimated Time Temperature Celsius
9 2021-10-07 03:40 44 *************************
... ..( 2 skipped). .. *************************
12 2021-10-07 04:10 44 *************************
13 2021-10-07 04:20 45 **************************
14 2021-10-07 04:30 44 *************************
15 2021-10-07 04:40 45 **************************
16 2021-10-07 04:50 44 *************************
17 2021-10-07 05:00 44 *************************
18 2021-10-07 05:10 45 **************************
19 2021-10-07 05:20 44 *************************
... ..( 4 skipped). .. *************************
24 2021-10-07 06:10 44 *************************
25 2021-10-07 06:20 45 **************************
26 2021-10-07 06:30 44 *************************
... ..( 9 skipped). .. *************************
36 2021-10-07 08:10 44 *************************
37 2021-10-07 08:20 45 **************************
38 2021-10-07 08:30 45 **************************
39 2021-10-07 08:40 44 *************************
40 2021-10-07 08:50 45 **************************
... ..( 32 skipped). .. **************************
73 2021-10-07 14:20 45 **************************
74 2021-10-07 14:30 44 *************************
... ..( 30 skipped). .. *************************
105 2021-10-07 19:40 44 *************************
106 2021-10-07 19:50 45 **************************
... ..( 12 skipped). .. **************************
119 2021-10-07 22:00 45 **************************
120 2021-10-07 22:10 44 *************************
... ..( 15 skipped). .. *************************
8 2021-10-08 00:50 44 *************************

SCT Error Recovery Control:
Read: Disabled
Write: Disabled

Device Statistics (GP/SMART Log 0x04) not supported

Pending Defects log (GP Log 0x0c) not supported

SATA Phy Event Counters (GP Log 0x11)
ID Size Value Description
0x0001 2 0 Command failed due to ICRC error
0x0002 2 0 R_ERR response for data FIS
0x0003 2 0 R_ERR response for device-to-host data FIS
0x0004 2 0 R_ERR response for host-to-device data FIS
0x0005 2 0 R_ERR response for non-data FIS
0x0006 2 0 R_ERR response for device-to-host non-data FIS
0x0007 2 0 R_ERR response for host-to-device non-data FIS
0x0008 2 0 Device-to-host non-data FIS retries
0x0009 2 3 Transition from drive PhyRdy to drive PhyNRdy
0x000a 2 3 Device-to-host register FISes sent due to a COMRESET
0x000b 2 0 CRC errors within host-to-device FIS
0x000d 2 0 Non-CRC errors within host-to-device FIS
0x000f 2 0 R_ERR response for host-to-device data FIS, CRC
0x0010 2 0 R_ERR response for host-to-device data FIS, non-CRC
0x0012 2 0 R_ERR response for host-to-device non-data FIS, CRC
0x0013 2 0 R_ERR response for host-to-device non-data FIS, non-CRC

requires option '-d cciss,N'

smartctl -d cciss,1 -a /dev/sda