check_smart does not support General Purpose Log

[hansmi]

One of my computers has an SSD (model ADATA SP600NS34) which doesn't report its used life as a SMART attribute. It does, however, report it in the "General Purpose Log".

$ smartctl -l ssd /dev/sda
…
Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x07  =====  =               =  ===  == Solid State Device Statistics (rev 1) ==
0x07  0x008  1              56  N--  Percentage Used Endurance Indicator
                                |||_ C monitored condition met
                                ||__ D supports DSN
                                |___ N normalized value

Supported tables can be listed with smartctl -l devstat,0 and each supported table can be retrieved using smartctl -l devstat,<page>. -l ssd is equivalent to -l devstat,7. The SMART attributes for the aforementioned SSD:

=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000a   100   100   000    Old_age   Always       -       0
  2 Throughput_Performance  0x0005   100   100   050    Pre-fail  Offline      -       0
  3 Spin_Up_Time            0x0007   100   100   050    Pre-fail  Always       -       0
  5 Reallocated_Sector_Ct   0x0013   100   100   050    Pre-fail  Always       -       0
  7 Unknown_SSD_Attribute   0x000b   100   100   050    Pre-fail  Always       -       0
  8 Unknown_SSD_Attribute   0x0005   100   100   050    Pre-fail  Offline      -       0
  9 Power_On_Hours          0x0012   100   100   000    Old_age   Always       -       18904
 10 Unknown_SSD_Attribute   0x0013   100   100   050    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0012   100   100   000    Old_age   Always       -       658
167 Unknown_Attribute       0x0022   100   100   000    Old_age   Always       -       0
168 Unknown_Attribute       0x0012   100   100   000    Old_age   Always       -       93
169 Unknown_Attribute       0x0013   100   100   010    Pre-fail  Always       -       4295950346
170 Unknown_Attribute       0x0013   100   100   010    Pre-fail  Always       -       0
173 Unknown_Attribute       0x0012   143   143   000    Old_age   Always       -       25862866203
175 Program_Fail_Count_Chip 0x0013   100   100   010    Pre-fail  Always       -       0
180 Unused_Rsvd_Blk_Cnt_Tot 0x0033   099   099   020    Pre-fail  Always       -       1089
192 Power-Off_Retract_Count 0x0012   100   100   000    Old_age   Always       -       93
194 Temperature_Celsius     0x0022   063   063   030    Old_age   Always       -       37 (Min/Max 28/38)
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
231 Temperature_Celsius     0x0033   100   100   005    Pre-fail  Always       -       0
233 Media_Wearout_Indicator 0x0032   100   100   000    Old_age   Always       -       691419471104
234 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       1075000130176
240 Unknown_SSD_Attribute   0x0013   100   100   050    Pre-fail  Always       -       0
241 Total_LBAs_Written      0x0032   100   100   000    Old_age   Always       -       32170085668
242 Total_LBAs_Read         0x0032   100   100   000    Old_age   Always       -       9610546032

check_smart could retrieve the general purpose log pages and treat them similar to the SMART attributes.

[Napsty]

Interesting case. Just out of curiousity, what does smartctl -a /dev/sda show on that SSD? It might also be a missing device recognition in smartmontools' smartctl to show the attributes directly.

According to https://www.smartmontools.org/browser/trunk/smartmontools/drivedb.h?rev=5047#L1683 the ADATA SP600 devics should be recognizable by smartcl:

{ "JMicron based SSDs", // JMicron JMF61x, JMF66x, JMF670
--
"ADATA S596 Turbo\|"  // tested with ADATA S596 Turbo 256GB SATA SSD (JMicron JMF616)
"ADATA SP600\|"  // tested with ADATA SP600/2.4 (JMicron JMF661)
"ADATA SP310\|"  // Premier Pro SP310 mSATA, JMF667, tested with ADATA SP310/3.04
"ADATA SX930\|"  // tested with ADATA SX930/6.8SE
...

According to the smartmontools changelog, this model was already added in March 2014.

[hansmi]

what does smartctl -a /dev/sda show on that SSD?

I'm including the output below. The machine in question runs Debian Buster.

ADATA SP600 devics should be recognizable by smartc[t]l: […]

The regular expression is for ADATA SP600 (among others) while the device uses ADATA SP600NS34. The structure description in drivedb.h says that the "regular expressions for drive model and firmware must match the full string". So this is definitely a problem, but not the cause: none of the attributes seems to be for the lifetime percentage.

smartctl 6.6 2017-11-05 r4594 [x86_64-linux-4.19.0-8-amd64] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     ADATA SP600NS34
Serial Number:    XXXXXXXXXXXX
LU WWN Device Id: 5 000000 000000000
Firmware Version: 5.8f
User Capacity:    256'060'514'304 bytes [256 GB]
Sector Size:      512 bytes logical/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-2 (minor revision not indicated)
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Wed May 13 XX:XX:XX 2020 CEST
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: 		(   32) seconds.
Offline data collection
capabilities: 			 (0x5b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					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: 	 (   1) minutes.
Extended self-test routine
recommended polling time: 	 (   1) minutes.
SCT capabilities: 	       (0x0039)	SCT Status supported.
					SCT Error Recovery Control supported.
					SCT Feature Control supported.
					SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000a   100   100   000    Old_age   Always       -       0
  2 Throughput_Performance  0x0005   100   100   050    Pre-fail  Offline      -       0
  3 Spin_Up_Time            0x0007   100   100   050    Pre-fail  Always       -       0
  5 Reallocated_Sector_Ct   0x0013   100   100   050    Pre-fail  Always       -       0
  7 Unknown_SSD_Attribute   0x000b   100   100   050    Pre-fail  Always       -       0
  8 Unknown_SSD_Attribute   0x0005   100   100   050    Pre-fail  Offline      -       0
  9 Power_On_Hours          0x0012   100   100   000    Old_age   Always       -       18904
 10 Unknown_SSD_Attribute   0x0013   100   100   050    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0012   100   100   000    Old_age   Always       -       659
167 Unknown_Attribute       0x0022   100   100   000    Old_age   Always       -       0
168 Unknown_Attribute       0x0012   100   100   000    Old_age   Always       -       93
169 Unknown_Attribute       0x0013   100   100   010    Pre-fail  Always       -       4295950346
170 Unknown_Attribute       0x0013   100   100   010    Pre-fail  Always       -       0
173 Unknown_Attribute       0x0012   143   143   000    Old_age   Always       -       25862866203
175 Program_Fail_Count_Chip 0x0013   100   100   010    Pre-fail  Always       -       0
180 Unused_Rsvd_Blk_Cnt_Tot 0x0033   099   099   020    Pre-fail  Always       -       1089
192 Power-Off_Retract_Count 0x0012   100   100   000    Old_age   Always       -       93
194 Temperature_Celsius     0x0022   064   064   030    Old_age   Always       -       36 (Min/Max 28/37)
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
231 Temperature_Celsius     0x0033   100   100   005    Pre-fail  Always       -       0
233 Media_Wearout_Indicator 0x0032   100   100   000    Old_age   Always       -       691451864320
234 Unknown_Attribute       0x0032   100   100   000    Old_age   Always       -       1075055336192
240 Unknown_SSD_Attribute   0x0013   100   100   050    Pre-fail  Always       -       0
241 Total_LBAs_Written      0x0032   100   100   000    Old_age   Always       -       32170644607
242 Total_LBAs_Read         0x0032   100   100   000    Old_age   Always       -       9612320576

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]

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.

[Napsty]

@hansmi does it work since smartmontools/smartmontools#53 ?

[hansmi]

@hansmi does it work since smartmontools/smartmontools#53 ?

The SSD was recognized after that, but as described in comment #52 (comment) the model in question doesn't report its lifetime as a plain SMART value. There is a value in the General Purpose Log.