[smartmontools-support] SMART Attribute 231 (SSD_Life_Left) SSD Kingston SA400S37120G

Ron Evan aplo17-smt at yahoo.com
Wed Jun 23 05:40:34 CEST 2021


smartmontools.org/wiki/FAQ     Attributes
"I see some strange output from smartctl. What does it mean? . . .
When you don't find an answer to your question there, please send an email to ​smartmontools-support and we'll help you try and figure it out."
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SSD Kingston SA400S37120G, Firmware Version: SBFK61K1

smartmontools (linux, latest version via distro software manager)
reports SMART Attribute 231 (SSD_Life_Left) as a raw value of 100 and normalized/worst/threshold values of 0. Is this possible?
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
231 SSD_Life_Left           ------   000   000   000    -    100

Other Attributes seem fine.

The drive has only been in service for a couple of months with light usage (Power_On_Hours Raw=171).

With the definition in a 2015 document https://media.kingston.com/support/downloads/MKP_306_SMART_attribute.pdf
 - Normalized Value Range: 100 = Best = Full SSD life remains, 1 = Worst = Insufficient Flash blocks remain in service for proper SSD operation
 - Raw Usage: [0]:  0 = Life driven by PE cycles, 1 = Life driven by Spare Blocks, [6-1]: None (0x00)

would expect output more like     VALUE:99, RAW_VALUE=000

(a Kingston rep mentioned as soon as a drive is connected it's reduced to 99)

Thanks.

============================
$ sudo smartctl -x /dev/sda
       
smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-74-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Phison Driven SSDs
Device Model:     KINGSTON SA400S37120G
Serial Number:    500<redacted>
LU WWN Device Id: 5 0026b7<redacted>
Firmware Version: SBFK61K1
User Capacity:    120,034,123,776 bytes [120 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-3 T13/2161-D revision 4
SATA Version is:  SATA 3.2, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Mon Jun 21 03:20:46 2021 EDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM level is:     254 (maximum performance)
Rd look-ahead is: Enabled
Write cache is:   Enabled
DSN feature is:   Unavailable
ATA Security is:  Disabled, NOT FROZEN [SEC1]
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:         (65535) 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:            (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:      (  30) minutes.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     -O--CK   000   100   000    -    0
  9 Power_On_Hours          -O--CK   100   100   000    -    171
 12 Power_Cycle_Count       -O--CK   100   100   000    -    77
148 Unknown_Attribute       ------   100   100   000    -    0
149 Unknown_Attribute       ------   100   100   000    -    0
167 Write_Protect_Mode      ------   100   100   000    -    0
168 SATA_Phy_Error_Count    -O--C-   100   100   000    -    0
169 Bad_Block_Rate          ------   100   100   000    -    59
170 Bad_Blk_Ct_Erl/Lat      ------   100   100   010    -    0/130
172 Erase_Fail_Count        -O--CK   100   100   000    -    0
173 MaxAvgErase_Ct          ------   100   100   000    -    2
181 Program_Fail_Count      -O--CK   100   100   000    -    0
182 Erase_Fail_Count        ------   100   100   000    -    0
187 Reported_Uncorrect      -O--CK   100   100   000    -    0
192 Unsafe_Shutdown_Count   -O--C-   100   100   000    -    18
194 Temperature_Celsius     -O---K   070   063   000    -    30 (Min/Max 24/37)
196 Reallocated_Event_Count -O--CK   100   100   000    -    0
199 SATA_CRC_Error_Count    -O--CK   100   100   000    -    0
218 CRC_Error_Count         -O--CK   100   100   000    -    0
231 SSD_Life_Left           ------   000   000   000    -    100
233 Flash_Writes_GiB        -O--CK   100   100   000    -    68
241 Lifetime_Writes_GiB     -O--CK   100   100   000    -    78
242 Lifetime_Reads_GiB      -O--CK   100   100   000    -    801
244 Average_Erase_Count     ------   100   100   000    -    0
245 Max_Erase_Count         ------   100   100   000    -    2
246 Total_Erase_Count       ------   100   100   000    -    7824
                            ||||||_ 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     51  Comprehensive SMART error log
0x03       GPL     R/O     64  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
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
0x30       GPL,SL  R/O      9  IDENTIFY DEVICE data log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log

SMART Extended Comprehensive Error Log Version: 1 (64 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  Short offline       Completed without error       00%       166         -
# 2  Short offline       Completed without error       00%       166         -
# 3  Short offline       Completed without error       00%         0         -

Selective Self-tests/Logging not supported

SCT Commands not supported

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 1) ==
0x01  0x008  4              77  ---  Lifetime Power-On Resets
0x01  0x010  4             171  ---  Power-on Hours
0x01  0x018  6       164074624  ---  Logical Sectors Written
0x01  0x028  6      1680612550  ---  Logical Sectors Read
0x04  =====  =               =  ===  == General Errors Statistics (rev 1) ==
0x04  0x008  4               0  ---  Number of Reported Uncorrectable Errors
0x05  =====  =               =  ===  == Temperature Statistics (rev 1) ==
0x05  0x008  1              30  ---  Current Temperature
0x05  0x020  1              37  ---  Highest Temperature
0x05  0x028  1              24  ---  Lowest Temperature
0x06  =====  =               =  ===  == Transport Statistics (rev 1) ==
0x06  0x018  4               0  ---  Number of Interface CRC Errors
0x07  =====  =               =  ===  == Solid State Device Statistics (rev 1) ==
0x07  0x008  1               0  ---  Percentage Used Endurance Indicator
                                |||_ C monitored condition met
                                ||__ D supports DSN
                                |___ N normalized value

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
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device 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  4            0  Transition from drive PhyRdy to drive PhyNRdy
0x000a  4            1  Device-to-host register FISes sent due to a COMRESET
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


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