Hello everyone, I'm really new to true nas and I got this warring from true nas
I have read some other discussion about the same problem and done more verifications:
Not that I only made tests on the 3 disks showing warning in Trueness (ada/0 ada/1 and ada3)
should I replace all three drives or only ada0 witch have 12 CKSUM errors?
Thank you for your help, greetings from France.
	
		
			
		
		
	
			
			Code:
root@truenas[~]#  zpool status -v
  pool: Volume1
 state: ONLINE
status: One or more devices has experienced an unrecoverable error.  An
        attempt was made to correct the error.  Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors
        using 'zpool clear' or replace the device with 'zpool replace'.
   see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-9P
config:
        NAME                                            STATE     READ WRITE CKSUM
        Volume1                                         ONLINE       0     0 0
          raidz2-0                                      ONLINE       0     0 0
            gptid/8408fbae-da6c-11ee-8c97-6045cb64b333  ONLINE       0     012
            gptid/83e72dd2-da6c-11ee-8c97-6045cb64b333  ONLINE       0     0 0
            gptid/83ee8bea-da6c-11ee-8c97-6045cb64b333  ONLINE       0     0 0
            gptid/8409390e-da6c-11ee-8c97-6045cb64b333  ONLINE       0     0 0
errors: No known data errors
  pool: boot-pool
 state: ONLINE
config:
        NAME        STATE     READ WRITE CKSUM
        boot-pool   ONLINE       0     0     0
          nvd0p2    ONLINE       0     0     0
errors: No known data errorsI have read some other discussion about the same problem and done more verifications:
Code:
root@truenas[~]# glabel status
                                      Name  Status  Components
gptid/eacca984-d944-11ee-90d3-6045cb64b333     N/A  nvd0p1
gptid/83b87a6c-da6c-11ee-8c97-6045cb64b333     N/A  ada1p1
gptid/83c1bef8-da6c-11ee-8c97-6045cb64b333     N/A  ada3p1
gptid/83cb30b4-da6c-11ee-8c97-6045cb64b333     N/A  ada0p1
gptid/83cb6da9-da6c-11ee-8c97-6045cb64b333     N/A  ada2p1
gptid/83e72dd2-da6c-11ee-8c97-6045cb64b333     N/A  ada1p2
gptid/83ee8bea-da6c-11ee-8c97-6045cb64b333     N/A  ada2p2
gptid/8408fbae-da6c-11ee-8c97-6045cb64b333     N/A  ada0p2
gptid/8409390e-da6c-11ee-8c97-6045cb64b333     N/A  ada3p2
root@truenas[~]# smartctl -a /dev/ada0
smartctl 7.2 2021-09-14 r5236 [FreeBSD 13.1-RELEASE-p9 amd64] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Red Pro
Device Model:     WDC WD2002FFSX-68PF8N0
Serial Number:    WD-WMC6N0K3684F
LU WWN Device Id: 5 0014ee 059cec775
Firmware Version: 81.00A81
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-3 T13/2161-D revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sat Mar  9 15:35:19 2024 CET
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:      ( 246) Self-test routine in progress...
                                        60% of test remaining.
Total time to complete Offline
data collection:                (    2) 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:        ( 207) minutes.
Conveyance self-test routine
recommended polling time:        (   5) minutes.
SCT capabilities:              (0x203d) 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     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   154   133   021    Pre-fail  Always       -       5283
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       726
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x002e   200   200   000    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   090   090   000    Old_age   Always       -       7602
 10 Spin_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   100   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       522
 16 Unknown_Attribute       0x0022   003   197   000    Old_age   Always       -       59198390459
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       65
193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       665
194 Temperature_Celsius     0x0022   113   101   000    Old_age   Always       -       34
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   100   253   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   100   253   000    Old_age   Offline      -       0
SMART Error Log Version: 1
ATA Error Count: 106 (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 106 occurred at disk power-on lifetime: 7586 hours (316 days + 2 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  04 51 00 00 00 00 00  Error: ABRT
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
Error 105 occurred at disk power-on lifetime: 7582 hours (315 days + 22 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  04 51 00 00 00 00 00  Error: ABRT
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
Error 104 occurred at disk power-on lifetime: 7580 hours (315 days + 20 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  04 51 00 00 00 00 00  Error: ABRT
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
Error 103 occurred at disk power-on lifetime: 7574 hours (315 days + 14 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  04 51 00 00 00 00 00  Error: ABRT
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
Error 102 occurred at disk power-on lifetime: 7574 hours (315 days + 14 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  04 51 00 00 00 00 00  Error: ABRT
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Self-test routine in progress 60%         0         -
# 2  Short offline       Completed without error       00%      7587         -
# 3  Short offline       Completed without error       00%      7563         -
# 4  Short offline       Completed without error       00%      7539         -
# 5  Short offline       Completed without error       00%      7515         -
# 6  Short offline       Completed without error       00%      7491         -
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.
root@truenas[~]# smartctl -a /dev/ada1
smartctl 7.2 2021-09-14 r5236 [FreeBSD 13.1-RELEASE-p9 amd64] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Red Pro
Device Model:     WDC WD2002FFSX-68PF8N0
Serial Number:    WD-WMC6N0K91DS4
LU WWN Device Id: 5 0014ee 0af25156d
Firmware Version: 81.00A81
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-3 T13/2161-D revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sat Mar  9 15:35:30 2024 CET
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:                    (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:        ( 208) minutes.
Conveyance self-test routine
recommended polling time:        (   5) minutes.
SCT capabilities:              (0x203d) 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     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   155   134   021    Pre-fail  Always       -       5233
  4 Start_Stop_Count        0x0032   099   099   000    Old_age   Always       -       1525
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x002e   200   200   000    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   073   073   000    Old_age   Always       -       19807
 10 Spin_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   100   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   099   099   000    Old_age   Always       -       1321
 16 Unknown_Attribute       0x0022   006   194   000    Old_age   Always       -       110818686728
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       107
193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       1482
194 Temperature_Celsius     0x0022   111   103   000    Old_age   Always       -       36
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   100   253   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   100   253   000    Old_age   Offline      -       0
SMART Error Log Version: 1
ATA Error Count: 29 (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 29 occurred at disk power-on lifetime: 19710 hours (821 days + 6 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 80 70 51 53 40  Error:
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
Error 28 occurred at disk power-on lifetime: 19710 hours (821 days + 6 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  04 51 00 00 00 00 00  Error: ABRT
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
Error 27 occurred at disk power-on lifetime: 19706 hours (821 days + 2 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 08 f0 61 fb 40  Error:
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
Error 26 occurred at disk power-on lifetime: 19706 hours (821 days + 2 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 08 f0 61 fb 40  Error:
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
Error 25 occurred at disk power-on lifetime: 19706 hours (821 days + 2 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  04 51 00 00 00 00 00  Error: ABRT
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
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%     19792         -
# 2  Short offline       Completed without error       00%     19768         -
# 3  Short offline       Completed without error       00%     19744         -
# 4  Short offline       Completed without error       00%     19720         -
# 5  Short offline       Completed without error       00%     19696         -
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.
root@truenas[~]# smartctl -a /dev/ada3
smartctl 7.2 2021-09-14 r5236 [FreeBSD 13.1-RELEASE-p9 amd64] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Red Pro
Device Model:     WDC WD2002FFSX-68PF8N0
Serial Number:    WD-WMC6N0F6ETAJ
LU WWN Device Id: 5 0014ee 059b23e39
Firmware Version: 81.00A81
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-3 T13/2161-D revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sat Mar  9 15:35:33 2024 CET
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:                    (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:        ( 220) minutes.
Conveyance self-test routine
recommended polling time:        (   5) minutes.
SCT capabilities:              (0x203d) 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     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   153   134   021    Pre-fail  Always       -       5316
  4 Start_Stop_Count        0x0032   099   099   000    Old_age   Always       -       1801
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x002e   200   200   000    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   070   070   000    Old_age   Always       -       22624
 10 Spin_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   100   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   099   099   000    Old_age   Always       -       1513
 16 Unknown_Attribute       0x0022   007   193   000    Old_age   Always       -       136351796792
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       132
193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       1759
194 Temperature_Celsius     0x0022   113   103   000    Old_age   Always       -       34
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   100   253   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   100   253   000    Old_age   Offline      -       0
SMART Error Log Version: 1
ATA Error Count: 26 (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 26 occurred at disk power-on lifetime: 22532 hours (938 days + 20 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  04 51 00 00 00 00 00  Error: ABRT
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
Error 25 occurred at disk power-on lifetime: 22532 hours (938 days + 20 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  04 51 00 00 00 00 00  Error: ABRT
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
Error 24 occurred at disk power-on lifetime: 22532 hours (938 days + 20 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  04 51 00 00 00 00 00  Error: ABRT
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
Error 23 occurred at disk power-on lifetime: 22532 hours (938 days + 20 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 80 50 cc cc 40  Error:
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
Error 22 occurred at disk power-on lifetime: 22532 hours (938 days + 20 hours)
  When the command that caused the error occurred, the device was in an unknownstate.
  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 50 20 f6 e6 40  Error:
  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
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%     22609         -
# 2  Short offline       Completed without error       00%     22585         -
# 3  Short offline       Completed without error       00%     22561         -
# 4  Short offline       Completed without error       00%     22537         -
# 5  Short offline       Completed without error       00%     22513         -
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.
Not that I only made tests on the 3 disks showing warning in Trueness (ada/0 ada/1 and ada3)
should I replace all three drives or only ada0 witch have 12 CKSUM errors?
Thank you for your help, greetings from France.