Check for ATA errors

[deric]

The idea is to inspect ATA device logs, which are also part of smartctl -a /dev/sda output. If the device log contains some errors it means that some operations are already failing, non-zero value would be escalated to a WARNING

kernel log might contain errors like this:

kernel: ata3.00: configured for UDMA/133
kernel: sd 2:0:0:0: [sdb] tag#1 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
kernel: sd 2:0:0:0: [sdb] tag#1 Sense Key : Medium Error [current] 
kernel: sd 2:0:0:0: [sdb] tag#1 Add. Sense: Unrecovered read error - auto reallocate failed
kernel: sd 2:0:0:0: [sdb] tag#1 CDB: Read(10) 28 00 11 40 5b c8 00 00 08 00
kernel: blk_update_request: I/O error, dev sdb, sector 289430472

from man page:

   -l TYPE, --log=TYPE
          Prints various device logs.  The valid arguments to this option are:

          error - [ATA] prints the Summary SMART error log.  SMART disks maintain a log of the most recent five non-trivial errors.  For each of these errors, the disk power-on lifetime
          at  which  the error occurred is recorded, as is the device status (idle, standby, etc) at the time of the error.  For some common types of errors, the Error Register (ER) and
          Status Register (SR) values are decoded and printed as text.  The meanings of these are:
             ABRT:  Command ABoRTed
             AMNF:  Address Mark Not Found
             CCTO:  Command Completion Timed Out
             EOM:   End Of Media
             ICRC:  Interface Cyclic Redundancy Code (CRC) error
             IDNF:  IDentity Not Found
             ILI:   (packet command-set specific)
             MC:    Media Changed
             MCR:   Media Change Request
             NM:    No Media
             obs:   obsolete
             TK0NF: TracK 0 Not Found
             UNC:   UNCorrectable Error in Data
             WP:    Media is Write Protected
          In addition, up to the last five commands that preceded the error are listed, along with a timestamp measured from the start of the corresponding power cycle.   This  is  dis‐
          played in the form Dd+HH:MM:SS.msec where D is the number of days, HH is hours, MM is minutes, SS is seconds and msec is milliseconds.  [Note: this time stamp wraps after 2^32
          milliseconds, or 49 days 17 hours 2 minutes and 47.296 seconds.]  The key ATA disk registers are also recorded in the log.  The final column of the error log is a  text-string
          description  of  the  ATA  command  defined by the Command Register (CR) and Feature Register (FR) values.  Commands that are obsolete in the most current spec are listed like
          this: READ LONG (w/ retry) [OBS-4], indicating that the command became obsolete with or in the ATA-4 specification.  Similarly, the notation [RET-N] is used to indicate that a
          command  was  retired  in  the  ATA-N specification.  Some commands are not defined in any version of the ATA specification but are in common use nonetheless; these are marked
          [NS], meaning non-standard.

The actual output looks like this:

smartctl /dev/sdb -l error
smartctl 7.3 2022-02-28 r5338 [x86_64-linux-6.10.7] (local build)
Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION === SMART Error Log Version: 1 ATA Error Count: 16 (device log contains only the most recent five errors) CR = Command Register [HEX] FR = Features Register [HEX] SC = Sector Count Register [HEX] SN = Sector Number Register [HEX] CL = Cylinder Low Register [HEX] CH = Cylinder High Register [HEX] DH = Device/Head Register [HEX] DC = Device Command Register [HEX] ER = Error register [HEX] ST = Status register [HEX] Powered_Up_Time is measured from power on, and printed as DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes, SS=sec, and sss=millisec. It "wraps" after 49.710 days.

Error 16 occurred at disk power-on lifetime: 9377 hours (390 days + 17 hours) When the command that caused the error occurred, the device was active or idle.

After command completion occurred, registers were: ER ST SC SN CL CH DH

---

40 51 c0 b0 92 94 40 Error: UNC at LBA = 0x009492b0 = 9736880

Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name

---

60 08 c0 b0 92 94 40 18 15:11:02.789 READ FPDMA QUEUED 60 08 b8 c8 92 94 40 17 15:11:02.789 READ FPDMA QUEUED 60 08 b0 90 92 94 40 16 15:11:02.789 READ FPDMA QUEUED 60 08 a8 60 13 94 40 15 15:11:02.789 READ FPDMA QUEUED 60 08 a0 f0 13 94 40 14 15:11:02.789 READ FPDMA QUEUED

Error 15 occurred at disk power-on lifetime: 9377 hours (390 days + 17 hours) When the command that caused the error occurred, the device was active or idle.

After command completion occurred, registers were: ER ST SC SN CL CH DH

---

40 51 c0 50 90 94 40 Error: UNC at LBA = 0x00949050 = 9736272

Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name

---

60 08 c0 50 90 94 40 18 15:11:02.778 READ FPDMA QUEUED 61 00 b8 00 10 94 40 17 15:11:02.778 WRITE FPDMA QUEUED 61 e8 b0 40 15 74 40 16 15:11:02.778 WRITE FPDMA QUEUED 60 08 a8 20 94 94 40 15 15:11:02.778 READ FPDMA QUEUED 61 40 a0 00 10 74 40 14 15:11:02.778 WRITE FPDMA QUEUED

Error 14 occurred at disk power-on lifetime: 9377 hours (390 days + 17 hours) When the command that caused the error occurred, the device was active or idle.

After command completion occurred, registers were: ER ST SC SN CL CH DH

---

40 51 d0 40 9b 94 40 Error: UNC at LBA = 0x00949b40 = 9739072

Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name

---

60 08 d0 40 9b 94 40 1a 15:11:02.777 READ FPDMA QUEUED 60 08 c8 30 9b 94 40 19 15:11:02.777 READ FPDMA QUEUED 60 08 c0 18 9b 94 40 18 15:11:02.777 READ FPDMA QUEUED 60 08 b8 08 9b 94 40 17 15:11:02.777 READ FPDMA QUEUED 60 08 b0 88 9b 94 40 16 15:11:02.777 READ FPDMA QUEUED

Error 13 occurred at disk power-on lifetime: 9377 hours (390 days + 17 hours) When the command that caused the error occurred, the device was active or idle.

After command completion occurred, registers were: ER ST SC SN CL CH DH

---

40 51 38 a0 97 94 40 Error: UNC at LBA = 0x009497a0 = 9738144

Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name

---

60 08 38 a0 97 94 40 07 15:11:02.773 READ FPDMA QUEUED 60 08 30 b0 97 94 40 06 15:11:02.773 READ FPDMA QUEUED 60 08 28 d8 97 94 40 05 15:11:02.773 READ FPDMA QUEUED 61 08 18 e0 30 d0 40 03 15:11:02.773 WRITE FPDMA QUEUED 47 00 01 13 00 00 40 1e 15:11:02.773 READ LOG DMA EXT

Error 12 occurred at disk power-on lifetime: 9377 hours (390 days + 17 hours) When the command that caused the error occurred, the device was active or idle.

After command completion occurred, registers were: ER ST SC SN CL CH DH

---

40 51 f0 70 97 94 40 Error: UNC at LBA = 0x00949770 = 9738096

Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name

---

60 08 f0 70 97 94 40 1e 15:11:02.771 READ FPDMA QUEUED 60 08 e8 d8 95 94 40 1d 15:11:02.771 READ FPDMA QUEUED 60 08 e0 a0 96 94 40 1c 15:11:02.771 READ FPDMA QUEUED 60 08 d8 c0 96 94 40 1b 15:11:02.771 READ FPDMA QUEUED 60 08 d0 c0 95 94 40 1a 15:11:02.771 READ FPDMA QUEUED

`check_smart` output with this modification:

./check_smart.pl -i ata -d /dev/sdb CRITICAL: Drive SAMSUNG MZ7LM480HCHP-00003 S/N S1YJNXAG900574: ATA Error Count: 16, Reallocated_Sector_Ct is non-zero (331), Runtime_Bad_Block is non-zero (331), Uncorrectable_Error_Cnt is non-zero (16), |Reallocated_Sector_Ct=331;;;; Power_On_Hours=75546;;;; Power_Cycle_Count=48;;;; Wear_Leveling_Count=6210;;;; Used_Rsvd_Blk_Cnt_Tot=331;;;; Unused_Rsvd_Blk_Cnt_Tot=2129;;;; Program_Fail_Cnt_Total=0;;;; Erase_Fail_Count_Total=0;;;; Runtime_Bad_Block=331;;;; End-to-End_Error=0;;;; Uncorrectable_Error_Cnt=16;;;; Airflow_Temperature_Cel=37;;;; ECC_Error_Rate=16;;;; Current_Pending_Sector=0;;;; CRC_Error_Count=0;;;; Exception_Mode_Status=0;;;; POR_Recovery_Count=37;;;; Total_LBAs_Written=4595275641341;;;; Total_LBAs_Read=50608004051;;;; SATA_Downshift_Ct=1;;;; Thermal_Throttle_St=0;;;; Timed_Workld_Media_Wear=65535;;;; Timed_Workld_RdWr_Ratio=65535;;;; Timed_Workld_Timer=65535;;;; NAND_Writes=6628479574168;;;; ata_errors=16;;;;

[deric]

here's full log of another drive in similar condition:

smartctl -a /dev/sdb
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.9.0-16-amd64] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Crucial/Micron MX100/MX200/M5x0/M600 Client SSDs
Device Model:     Crucial_CT250MX200SSD1
Serial Number:    16271327ED78
LU WWN Device Id: 5 00a075 11327ed78
Firmware Version: MU03
User Capacity:    250,059,350,016 bytes [250 GB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    Solid State Device
Form Factor:      2.5 inches
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: 6.0 Gb/s)
Local Time is:    Wed Sep 11 18:38:08 2024 UTC
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: FAILED!
Drive failure expected in less than 24 hours. SAVE ALL DATA.
No failed Attributes found.

General SMART Values:
Offline data collection status:  (0x80) Offline data collection activity
                                        was never started.
                                        Auto Offline Data Collection: Enabled.
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:                (  795) seconds.
Offline data collection
capabilities:                    (0x7b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off 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:        (   2) minutes.
Extended self-test routine
recommended polling time:        (   5) minutes.
Conveyance self-test routine
recommended polling time:        (   3) minutes.
SCT capabilities:              (0x0035) SCT Status 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     0x002f   100   100   000    Pre-fail  Always       -       1126
  5 Reallocate_NAND_Blk_Cnt 0x0032   100   100   010    Old_age   Always       -       1
  9 Power_On_Hours          0x0032   100   100   000    Old_age   Always       -       69602
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       14
171 Program_Fail_Count      0x0032   100   100   000    Old_age   Always       -       0
172 Erase_Fail_Count        0x0032   100   100   000    Old_age   Always       -       0
173 Ave_Block-Erase_Count   0x0032   001   001   000    Old_age   Always       -       3657
174 Unexpect_Power_Loss_Ct  0x0032   100   100   000    Old_age   Always       -       7
180 Unused_Reserve_NAND_Blk 0x0033   000   000   000    Pre-fail  Always       -       2600
183 SATA_Interfac_Downshift 0x0032   100   100   000    Old_age   Always       -       0
184 Error_Correction_Count  0x0032   100   100   000    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       244390
194 Temperature_Celsius     0x0022   068   050   000    Old_age   Always       -       32 (Min/Max 27/50)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       1
197 Current_Pending_Sector  0x0032   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   100   100   000    Old_age   Always       -       0
202 Percent_Lifetime_Used   0x0030   000   000   001    Old_age   Offline  FAILING_NOW 100
206 Write_Error_Rate        0x000e   100   100   000    Old_age   Always       -       0
210 Success_RAIN_Recov_Cnt  0x0032   100   100   000    Old_age   Always       -       0
246 Total_Host_Sector_Write 0x0032   100   100   000    Old_age   Always       -       340365865430
247 Host_Program_Page_Count 0x0032   100   100   000    Old_age   Always       -       10917042908
248 Bckgnd_Program_Page_Cnt 0x0032   100   100   000    Old_age   Always       -       30729664257

SMART Error Log Version: 1
Warning: ATA error count 47782 inconsistent with error log pointer 5

ATA Error Count: 47782 (device log contains only the most recent five errors)
        CR = Command Register [HEX]
        FR = Features Register [HEX]
        SC = Sector Count Register [HEX]
        SN = Sector Number Register [HEX]
        CL = Cylinder Low Register [HEX]
        CH = Cylinder High Register [HEX]
        DH = Device/Head Register [HEX]
        DC = Device Command Register [HEX]
        ER = Error register [HEX]
        ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.

Error 47782 occurred at disk power-on lifetime: 0 hours (0 days + 0 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 08 c8 5b 40 40  Error: UNC at LBA = 0x00405bc8 = 4217800

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 08 c8 5b 40 40 08  16d+21:32:16.832  READ FPDMA QUEUED
  47 00 01 30 08 00 e0 08  16d+21:32:16.832  READ LOG DMA EXT
  47 00 01 13 00 00 e0 08  16d+21:32:16.832  READ LOG DMA EXT
  47 00 01 00 00 00 e0 08  16d+21:32:16.832  READ LOG DMA EXT
  ef 10 02 00 00 00 a0 08  16d+21:32:16.832  SET FEATURES [Enable SATA feature]

Error 47781 occurred at disk power-on lifetime: 0 hours (0 days + 0 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 08 c8 5b 40 40  Error: UNC at LBA = 0x00405bc8 = 4217800

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 08 c8 5b 40 40 08  16d+21:32:16.832  READ FPDMA QUEUED
  ea 00 00 00 00 00 e0 08  16d+21:32:16.832  FLUSH CACHE EXT
  61 00 08 d8 1a 77 40 08  16d+21:32:16.832  WRITE FPDMA QUEUED
  ea 00 00 00 00 00 e0 08  16d+21:32:16.832  FLUSH CACHE EXT
  61 00 68 70 1a 77 40 08  16d+21:32:16.832  WRITE FPDMA QUEUED

Error 47780 occurred at disk power-on lifetime: 0 hours (0 days + 0 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 08 c8 5b 40 40  Error: UNC at LBA = 0x00405bc8 = 4217800

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 08 c8 5b 40 40 08  16d+21:30:16.832  READ FPDMA QUEUED
  47 00 01 30 08 00 e0 08  16d+21:30:16.832  READ LOG DMA EXT
  47 00 01 13 00 00 e0 08  16d+21:30:16.832  READ LOG DMA EXT
  47 00 01 00 00 00 e0 08  16d+21:30:16.832  READ LOG DMA EXT
  ef 10 02 00 00 00 a0 08  16d+21:30:16.832  SET FEATURES [Enable SATA feature]

Error 47779 occurred at disk power-on lifetime: 0 hours (0 days + 0 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 08 c8 5b 40 40  Error: UNC at LBA = 0x00405bc8 = 4217800

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 03 08 c8 5b 40 40 08  16d+21:30:16.832  READ FPDMA QUEUED
  ea 00 00 00 00 00 e0 08  16d+21:30:16.832  FLUSH CACHE EXT
  61 00 08 b8 08 77 40 08  16d+21:30:16.832  WRITE FPDMA QUEUED
  ea 00 00 00 00 00 e0 08  16d+21:30:16.832  FLUSH CACHE EXT
  61 10 a8 10 08 77 40 08  16d+21:30:16.832  WRITE FPDMA QUEUED

Error 47778 occurred at disk power-on lifetime: 0 hours (0 days + 0 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 51 08 c8 5b 40 40  Error: UNC at LBA = 0x00405bc8 = 4217800

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 08 c8 5b 40 40 08  16d+21:28:16.832  READ FPDMA QUEUED
  47 00 01 30 08 00 e0 08  16d+21:28:16.832  READ LOG DMA EXT
  47 00 01 13 00 00 e0 08  16d+21:28:16.832  READ LOG DMA EXT
  47 00 01 00 00 00 e0 08  16d+21:28:16.832  READ LOG DMA EXT
  ef 10 02 00 00 00 a0 08  16d+21:28:16.832  SET FEATURES [Enable SATA feature]

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Vendor (0xff)       Completed without error       00%      7927         -
# 2  Vendor (0xff)       Completed without error       00%      7909         -
# 3  Vendor (0xff)       Completed without error       00%      7863         -
# 4  Vendor (0xff)       Completed without error       00%      7817         -
# 5  Vendor (0xff)       Completed without error       00%      7772         -
# 6  Vendor (0xff)       Completed without error       00%      7726         -
# 7  Vendor (0xff)       Completed without error       00%      7681         -
# 8  Extended offline    Completed without error       00%      7627         -
# 9  Vendor (0xff)       Completed without error       00%      7626         -
#10  Extended offline    Completed without error       00%        12         -
#11  Extended 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.

[Napsty]

What does ./check_smart.pl -i ata -d /dev/sdb -s say?

[deric]

default check is failing due to Percent_Lifetime_Used

./check_smart.pl -i ata -d /dev/sdb
CRITICAL: Drive  Crucial_CT250MX200SSD1 S/N 16271327ED78:  Health status: FAILED!, Reported_Uncorrect is non-zero (245410), Reallocated_Event_Count is non-zero (1), Attribute Percent_Lifetime_Used failed at FAILING_NOW, ata_errors is non-zero (48802), |Raw_Read_Error_Rate=1126;;;; Reallocate_NAND_Blk_Cnt=1;;;; Power_On_Hours=69619;;;; Power_Cycle_Count=14;;;; Program_Fail_Count=0;;;; Erase_Fail_Count=0;;;; Ave_Block-Erase_Count=3658;;;; Unexpect_Power_Loss_Ct=7;;;; Unused_Reserve_NAND_Blk=2600;;;; SATA_Interfac_Downshift=0;;;; Error_Correction_Count=0;;;; Reported_Uncorrect=245410;;;; Temperature_Celsius=33;;;; Reallocated_Event_Count=1;;;; Current_Pending_Sector=0;;;; Offline_Uncorrectable=0;;;; UDMA_CRC_Error_Count=0;;;; Percent_Lifetime_Used=100;;;; Write_Error_Rate=0;;;; Success_RAIN_Recov_Cnt=0;;;; Total_Host_Sector_Write=340518286562;;;; Host_Program_Page_Count=10921806085;;;; Bckgnd_Program_Page_Cnt=30739590916;;;; ata_errors=48802;;;;

-s: gives WARNING

$ ./check_smart.pl -i ata -d /dev/sdb -E Percent_Lifetime_Used --skip-self-assessment -s
WARNING: Drive  Crucial_CT250MX200SSD1 S/N 16271327ED78:  Reported_Uncorrect is non-zero (245412), Reallocated_Event_Count is non-zero (1), ata_errors is non-zero (48804), |Raw_Read_Error_Rate=1126;;;; Reallocate_NAND_Blk_Cnt=1;;;; Power_On_Hours=69619;;;; Power_Cycle_Count=14;;;; Program_Fail_Count=0;;;; Erase_Fail_Count=0;;;; Ave_Block-Erase_Count=3658;;;; Unexpect_Power_Loss_Ct=7;;;; Unused_Reserve_NAND_Blk=2600;;;; SATA_Interfac_Downshift=0;;;; Error_Correction_Count=0;;;; Reported_Uncorrect=245412;;;; Temperature_Celsius=33;;;; Reallocated_Event_Count=1;;;; Current_Pending_Sector=0;;;; Offline_Uncorrectable=0;;;; UDMA_CRC_Error_Count=0;;;; Write_Error_Rate=0;;;; Success_RAIN_Recov_Cnt=0;;;; Total_Host_Sector_Write=340518649314;;;; Host_Program_Page_Count=10921817422;;;; Bckgnd_Program_Page_Cnt=30739592766;;;; ata_errors=48804;;;;

[Napsty]

Yep, -s checks the selftest logs and detected ATA alerts in the output: ata_errors is non-zero (48804)

Would that be enough or does your commit enhance this capability? (besides adding an option to skip the log check)

[deric]

ata_errors are added by this PR.

-s self-test doesn't detect anything:

sudo /usr/sbin/smartctl -d ata -q silent -A /dev/sdb

(debug) exit code:
0

(debug) zero exit code, status OK

(debug) selftest log check activated

(debug) exit code:
0

[Napsty]

Ah. Mixed something up, sorry. Too many projects at the same time... Correct, the selftest logs would only alert if someone ran a selftest (smartctl -t ...) and this logged an error.

So yeah, your contribution is very helpful for detecting errors not showing up in any attribute. I've had a few of such cases as well in the past and would have been happy if check_smart would have detected these :+1:

[deric]

No problem.

Currently the script executes following commands:

1. smartctl -d ata -Hi /dev/sdb
2. smartctl -d ata -q silent -A /dev/sdb
3. smartctl -d ata -A /dev/sdb
4. smartctl -d ata -l error /dev/sdb

we could merge the last two if we execute -a instead of -A, but the code would be probably more complicated.

[Napsty]

Yeah that improvement would be #14, which would be nice, but not urgent.

[deric]

Ok, then we should add more command executions.

[deric]

@Napsty Now it's using smarctl -a and then checking the whole output. Is the attribute name ata_errors ok?

[Napsty]

Is the attribute name ata_errors ok?

Yeah, sounds good to me. It doesn't confuse with any existing SMART attribute, so this should be fine.