Pool Error - data corruption

[Cleption]

Hello, I'm new to the community so if I'm doing something wrong tell me
I have a freenas (truenas) that i installed on my hardware, it was working great for few years with no issues,
i'm an IT guy and can follow instructions I'm just not a professional with the system since i rarely touch it, only for updates.
recently i got this error

Error Message:
Pool POOL3.63T-Z2 state is ONLINE: One or more devices has experienced an error resulting in data corruption. Applications may be affected.

*I have a backup of the data to an external cloud

I'm just not sure what's the issue is, do i have to rebuild the pool because of one error? is there a way to fix it with out rebuilding it?

Version:

TrueNAS-13.0-U5.2

 

[sretalla]

I'm just not sure what's the issue is, do i have to rebuild the pool because of one error? is there a way to fix it with out rebuilding it?

At the shell, run zpool status -v

This will tell you which file is corrupt.

Depending on that file, it may be as easy as deleting it (or the snapshot that contains it) and you might be fine.

If it's metadata, it will mean you need to rebuild the pool.

You also need to ask yourself how corruption can happen in a pool setup like this... sounds likely that something would be wrong with your SATA controller or RAM.

Have you checked the SMART reports on your disks (are you running long tests?)?

 

[Cleption]

At the shell, run zpool status -v

This will tell you which file is corrupt.

Depending on that file, it may be as easy as deleting it (or the snapshot that contains it) and you might be fine.

If it's metadata, it will mean you need to rebuild the pool.

You also need to ask yourself how corruption can happen in a pool setup like this... sounds likely that something would be wrong with your SATA controller or RAM.

Have you checked the SMART reports on your disks (are you running long tests?)?

Thanks for the quick answer!
I found the file with your help! looks like one file that was already deleted automatically by a cloud sync pull job i have (extra backup of a website i have)
i guess its still shows the error because i have snapshots for that backup folder and i need to delete the snapshot that contains this corrupted file.

about how it happened? well i did have a power outage recently on the date i got this error but its nothing special, its not the first time the truenas deals with a power outage and it never had issues but i should consider buying a UPS.

and about the SMART reports, yep i got them running with no issues

 

[sretalla]

It's great that you're running those tests.

What you're probably missing is that SUCCESS probably doesn't mean what you think it means... all it's saying is that the test is complete to the end... not that nothing bad was found.

You need to look at smartctl -a /dev/adaX (where you replace X for each of your actual disks).

If you post that output here, we can help to check it for you.

 

[Cleption]

It's great that you're running those tests.

What you're probably missing is that SUCCESS probably doesn't mean what you think it means... all it's saying is that the test is complete to the end... not that nothing bad was found.

You need to look at smartctl -a /dev/adaX (where you replace X for each of your actual disks).

If you post that output here, we can help to check it for you.

i really appreciate your help on this, thank you!

smartctl -a /dev/ada1 smartctl 7.2 2021-09-14 r5236 [FreeBSD 13.1-RELEASE-p7 amd64] (local build) Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Western Digital Red Device Model: WDC WD20EFRX-68EUZN0 Serial Number: - LU WWN Device Id: - Firmware Version: 82.00A82 User Capacity: 2,000,398,934,016 bytes [2.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 5400 rpm Device is: In smartctl database [for details use: -P show] ATA Version is: ACS-2 (minor revision not indicated) SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s) Local Time is: Tue Aug 22 21:24:40 2023 IDT 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: (27420) 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: ( 277) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. SCT capabilities: (0x703d) 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 187 174 021 Pre-fail Always - 3625 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 98 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0 9 Power_On_Hours 0x0032 066 066 000 Old_age Always - 25476 10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 98 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 91 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 260 194 Temperature_Celsius 0x0022 110 101 000 Old_age Always - 37 196 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 200 200 000 Old_age Offline - 0 SMART Error Log Version: 1 No Errors Logged 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% 25458 - # 2 Short offline Completed without error 00% 25434 - # 3 Short offline Completed without error 00% 25410 - # 4 Short offline Completed without error 00% 25386 - # 5 Short offline Completed without error 00% 25362 - # 6 Short offline Completed without error 00% 25338 - # 7 Extended offline Completed without error 00% 25323 - # 8 Short offline Completed without error 00% 25315 - # 9 Short offline Completed without error 00% 25291 - #10 Short offline Completed without error 00% 25267 - #11 Short offline Completed without error 00% 25243 - #12 Short offline Completed without error 00% 25219 - #13 Short offline Completed without error 00% 25195 - #14 Short offline Completed without error 00% 25171 - #15 Extended offline Completed without error 00% 25155 - #16 Short offline Completed without error 00% 25147 - #17 Short offline Completed without error 00% 25123 - #18 Short offline Completed without error 00% 25099 - #19 Short offline Completed without error 00% 25075 - #20 Short offline Completed without error 00% 25051 - #21 Short offline Completed without error 00% 25027 - 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 --------------------------------------------------------------------------------------- smartctl -a /dev/ada2 smartctl 7.2 2021-09-14 r5236 [FreeBSD 13.1-RELEASE-p7 amd64] (local build) Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Western Digital Red Device Model: WDC WD20EFRX-68EUZN0 Serial Number: - LU WWN Device Id: - Firmware Version: 82.00A82 User Capacity: 2,000,398,934,016 bytes [2.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 5400 rpm Device is: In smartctl database [for details use: -P show] ATA Version is: ACS-2 (minor revision not indicated) SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s) Local Time is: Tue Aug 22 21:30:45 2023 IDT 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: (25980) 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: ( 263) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. SCT capabilities: (0x703d) 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 190 179 021 Pre-fail Always - 3466 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 98 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0 9 Power_On_Hours 0x0032 067 067 000 Old_age Always - 24283 10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 98 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 91 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 260 194 Temperature_Celsius 0x0022 110 100 000 Old_age Always - 37 196 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 200 200 000 Old_age Offline - 0 SMART Error Log Version: 1 No Errors Logged 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% 24265 - # 2 Short offline Completed without error 00% 24241 - # 3 Short offline Completed without error 00% 24217 - # 4 Short offline Completed without error 00% 24193 - # 5 Short offline Completed without error 00% 24169 - # 6 Short offline Completed without error 00% 24145 - # 7 Extended offline Completed without error 00% 24129 - # 8 Short offline Completed without error 00% 24121 - # 9 Short offline Completed without error 00% 24097 - #10 Short offline Completed without error 00% 24074 - #11 Short offline Completed without error 00% 24050 - #12 Short offline Completed without error 00% 24026 - #13 Short offline Completed without error 00% 24002 - #14 Short offline Completed without error 00% 23978 - #15 Extended offline Completed without error 00% 23962 - #16 Short offline Completed without error 00% 23954 - #17 Short offline Completed without error 00% 23930 - #18 Short offline Completed without error 00% 23906 - #19 Short offline Completed without error 00% 23882 - #20 Short offline Completed without error 00% 23858 - #21 Short offline Completed without error 00% 23834 - 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 --------------------------------------------------------------------------------------- smartctl -a /dev/ada4 smartctl 7.2 2021-09-14 r5236 [FreeBSD 13.1-RELEASE-p7 amd64] (local build) Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Western Digital Red Device Model: WDC WD20EFRX-68EUZN0 Serial Number: - LU WWN Device Id: - Firmware Version: 82.00A82 User Capacity: 2,000,398,934,016 bytes [2.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 5400 rpm Device is: In smartctl database [for details use: -P show] ATA Version is: ACS-2 (minor revision not indicated) SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s) Local Time is: Tue Aug 22 21:33:21 2023 IDT 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: (27240) 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: ( 275) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. SCT capabilities: (0x703d) 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 187 173 021 Pre-fail Always - 3616 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 98 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0 9 Power_On_Hours 0x0032 066 066 000 Old_age Always - 25477 10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 98 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 92 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 260 194 Temperature_Celsius 0x0022 111 101 000 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 200 200 000 Old_age Offline - 0 SMART Error Log Version: 1 No Errors Logged 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% 25458 - # 2 Short offline Completed without error 00% 25434 - # 3 Short offline Completed without error 00% 25410 - # 4 Short offline Completed without error 00% 25386 - # 5 Short offline Completed without error 00% 25362 - # 6 Short offline Completed without error 00% 25339 - # 7 Extended offline Completed without error 00% 25323 - # 8 Short offline Completed without error 00% 25315 - # 9 Short offline Completed without error 00% 25291 - #10 Short offline Completed without error 00% 25267 - #11 Short offline Completed without error 00% 25243 - #12 Short offline Completed without error 00% 25219 - #13 Short offline Completed without error 00% 25195 - #14 Short offline Completed without error 00% 25171 - #15 Extended offline Completed without error 00% 25155 - #16 Short offline Completed without error 00% 25147 - #17 Short offline Completed without error 00% 25123 - #18 Short offline Completed without error 00% 25099 - #19 Short offline Completed without error 00% 25075 - #20 Short offline Completed without error 00% 25051 - #21 Short offline Completed without error 00% 25027 - 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 --------------------------------------------------------------------------------------- smartctl -a /dev/ada5 smartctl 7.2 2021-09-14 r5236 [FreeBSD 13.1-RELEASE-p7 amd64] (local build) Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Western Digital Red Device Model: WDC WD20EFRX-68EUZN0 Serial Number: - LU WWN Device Id: - Firmware Version: 82.00A82 User Capacity: 2,000,398,934,016 bytes [2.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 5400 rpm Device is: In smartctl database [for details use: -P show] ATA Version is: ACS-2 (minor revision not indicated) SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s) Local Time is: Tue Aug 22 21:37:03 2023 IDT 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: (27600) 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: ( 279) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. SCT capabilities: (0x703d) 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 189 176 021 Pre-fail Always - 3550 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 98 5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0 7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0 9 Power_On_Hours 0x0032 067 067 000 Old_age Always - 24284 10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0 11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 98 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 92 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 260 194 Temperature_Celsius 0x0022 110 101 000 Old_age Always - 37 196 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 200 200 000 Old_age Offline - 0 SMART Error Log Version: 1 No Errors Logged 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% 24265 - # 2 Short offline Completed without error 00% 24241 - # 3 Short offline Completed without error 00% 24217 - # 4 Short offline Completed without error 00% 24193 - # 5 Short offline Completed without error 00% 24169 - # 6 Short offline Completed without error 00% 24146 - # 7 Extended offline Completed without error 00% 24130 - # 8 Short offline Completed without error 00% 24122 - # 9 Short offline Completed without error 00% 24098 - #10 Short offline Completed without error 00% 24074 - #11 Short offline Completed without error 00% 24050 - #12 Short offline Completed without error 00% 24026 - #13 Short offline Completed without error 00% 24002 - #14 Short offline Completed without error 00% 23978 - #15 Extended offline Completed without error 00% 23962 - #16 Short offline Completed without error 00% 23954 - #17 Short offline Completed without error 00% 23930 - #18 Short offline Completed without error 00% 23906 - #19 Short offline Completed without error 00% 23882 - #20 Short offline Completed without error 00% 23858 - #21 Short offline Completed without error 00% 23834 - 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

 

[jyavenard]

doesn't look like there are any errors there. Raw_Read_Error_Rate Reallocated_Sector_Ct and Seek_Error_Rate are all at 0 for all disks.

 

[Cleption]

Thank you guys! :)