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linux:check-ssd-health

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Check SSD health on linux

Important to check (value 100 is ideal - it will decrease under 100 over time):

  • Power_On_Hours - how many hours the drive has been powered on
  • Wear_Leveling_Count - remaining drive endurance

Short test:

smartctl -t short -a /dev/sdc

Output:

smartctl 7.0 2018-12-30 r4883 [x86_64-linux-3.10.0-1062.18.1.el7.x86_64] (local build)                                                                                                                                                                                                    
Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org                                                                                                                                                                                                               
                                                                                                                                                                                                                                                                                          
=== START OF INFORMATION SECTION ===                                                                                                                                                                                                                                                      
Model Family:     Samsung based SSDs                                                                                                                                                                                                                                                      
Device Model:     Samsung SSD 850 EVO 250GB                                                                                                                                                                                                                                               
Serial Number:    S21PNSAG870006W                                                                                                                                                                                                                                                         
LU WWN Device Id: 5 002538 da035439d                                                                                                                                                                                                                                                      
Firmware Version: EMT01B6Q                                                                                                                                                                                                                                                                
User Capacity:    250,059,350,016 bytes [250 GB]                                                                                                                                                                                                                                          
Sector Size:      512 bytes logical/physical                                                                                                                                                                                                                                              
Rotation Rate:    Solid State Device                                                                                                                                                                                                                                                      
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:    Sun Apr 26 01:56:58 2020 EEST                                                                                                                                                                                                                                           
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:                (    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:        ( 133) 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   0x0033   100   100   010    Pre-fail  Always       -       0                                                                                                                                                                                                  
  9 Power_On_Hours          0x0032   095   095   000    Old_age   Always       -       24142                                                                                                                                                                                              
 12 Power_Cycle_Count       0x0032   099   099   000    Old_age   Always       -       378                                                                                                                                                                                                
177 Wear_Leveling_Count     0x0013   098   098   000    Pre-fail  Always       -       37                                                                                                                                                                                                 
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   100   010    Pre-fail  Always       -       0                                                                                                                                                                                                  
187 Uncorrectable_Error_Cnt 0x0032   100   100   000    Old_age   Always       -       0                                                                                                                                                                                                  
190 Airflow_Temperature_Cel 0x0032   064   041   000    Old_age   Always       -       36                                                                                                                                                                                                 
195 ECC_Error_Rate          0x001a   200   200   000    Old_age   Always       -       0                                                                                                                                                                                                  
199 CRC_Error_Count         0x003e   100   100   000    Old_age   Always       -       0                                                                                                                                                                                                  
235 POR_Recovery_Count      0x0012   099   099   000    Old_age   Always       -       59                                                                                                                                                                                                 
241 Total_LBAs_Written      0x0032   099   099   000    Old_age   Always       -       41979196395                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                          
SMART Error Log Version: 1                                                                                                                                                                                                                                                                
No Errors Logged                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                          
SMART Self-test log structure revision number 1                                                                                                                                                                                                                                           
No self-tests have been logged.  [To run self-tests, use: smartctl -t]                                                                                                                                                                                                                    
                                                                                                                                                                                                                                                                                          
Warning! SMART Selective Self-Test Log Structure error: invalid SMART checksum.                                                                                                                                                                                                           
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.                                                                                                                                                                                                               
                                                                                                                                                                                                                                                                                          
=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===                                                                                                                                                                                                                                  
Sending command: "Execute SMART Short self-test routine immediately in off-line mode".                                                                                                                                                                                                    
Drive command "Execute SMART Short self-test routine immediately in off-line mode" successful.                                                                                                                                                                                            
Testing has begun.                                                                                                                                                                                                                                                                        
Please wait 2 minutes for test to complete.                                                                                                                                                                                                                                               
Test will complete after Sun Apr 26 01:58:58 2020                                                                                                                                                                                                                                         
                                                                                                                                                                                                                                                                                          
Use smartctl -X to abort test.

See test results:

smartctl -a /dev/sdc

Output:

smartctl 7.0 2018-12-30 r4883 [x86_64-linux-3.10.0-1062.18.1.el7.x86_64] (local build)                                                                                                                                                                                                    
Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org                                                                                                                                                                                                               
                                                                                                                                                                                                                                                                                          
=== START OF INFORMATION SECTION ===                                                                                                                                                                                                                                                      
Model Family:     Samsung based SSDs                                                                                                                                                                                                                                                      
Device Model:     Samsung SSD 850 EVO 250GB                                                                                                                                                                                                                                               
Serial Number:    S21PNSAG870006W                                                                                                                                                                                                                                                         
LU WWN Device Id: 5 002538 da035439d                                                                                                                                                                                                                                                      
Firmware Version: EMT01B6Q                                                                                                                                                                                                                                                                
User Capacity:    250,059,350,016 bytes [250 GB]                                                                                                                                                                                                                                          
Sector Size:      512 bytes logical/physical                                                                                                                                                                                                                                              
Rotation Rate:    Solid State Device                                                                                                                                                                                                                                                      
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:    Sun Apr 26 02:04:22 2020 EEST                                                                                                                                                                                                                                           
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:                (    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:        ( 133) minutes.                                                                                                                                                                                                                                          
SCT capabilities:              (0x003d) SCT Status supported.                                                                                                                                                                                                                             
[root@medjavaro ~]# smartctl -a /dev/sdc
smartctl 7.0 2018-12-30 r4883 [x86_64-linux-3.10.0-1062.18.1.el7.x86_64] (local build)
Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Samsung based SSDs
Device Model:     Samsung SSD 850 EVO 250GB
Serial Number:    S21PNSAG870006W
LU WWN Device Id: 5 002538 da035439d
Firmware Version: EMT01B6Q
User Capacity:    250,059,350,016 bytes [250 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
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:    Sun Apr 26 02:05:56 2020 EEST
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:                (    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:        ( 133) 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   0x0033   100   100   010    Pre-fail  Always       -       0                                                                                                                                                                                                  
  9 Power_On_Hours          0x0032   095   095   000    Old_age   Always       -       24142                                                                                                                                                                                              
 12 Power_Cycle_Count       0x0032   099   099   000    Old_age   Always       -       378                                                                                                                                                                                                
177 Wear_Leveling_Count     0x0013   098   098   000    Pre-fail  Always       -       37                                                                                                                                                                                                 
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   100   010    Pre-fail  Always       -       0                                                                                                                                                                                                  
187 Uncorrectable_Error_Cnt 0x0032   100   100   000    Old_age   Always       -       0                                                                                                                                                                                                  
190 Airflow_Temperature_Cel 0x0032   064   041   000    Old_age   Always       -       36                                                                                                                                                                                                 
195 ECC_Error_Rate          0x001a   200   200   000    Old_age   Always       -       0                                                                                                                                                                                                  
199 CRC_Error_Count         0x003e   100   100   000    Old_age   Always       -       0                                                                                                                                                                                                  
235 POR_Recovery_Count      0x0012   099   099   000    Old_age   Always       -       59                                                                                                                                                                                                 
241 Total_LBAs_Written      0x0032   099   099   000    Old_age   Always       -       41979284897                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                          
SMART Error Log Version: 1                                                                                                                                                                                                                                                                
No Errors Logged                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                          
Warning! SMART Self-Test Log Structure error: invalid SMART checksum.                                                                                                                                                                                                                     
SMART Self-test log structure revision number 1                                                                                                                                                                                                                                           
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error                                                                                                                                                                                           
# 1  Short offline       Completed without error       00%     24142         -                                                                                                                                                                                                            
                                                                                                                                                                                                                                                                                          
Warning! SMART Selective Self-Test Log Structure error: invalid SMART checksum.                                                                                                                                                                                                           
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.
linux/check-ssd-health.1587856361.txt.gz · Last modified: 2020/04/26 02:12 by odefta