danilodiogo
Cadet
- Joined
- Feb 15, 2020
- Messages
- 2
Yet another "Currently unreadable (pending) sectors", my apologies in advance but since this is my first time going through this process I want to double check my troubleshooting steps and conclusions are solid or not. I've gone through multiple posts and articles already, I'll post below what I found and let me know if I'm missing something please.
Sorry, some of the info below may be useless for you, but just to be sure I'm thorough on what I see and checked.
First problems of error, I got a FreeNAS email with "Device: /dev/ada2, 1 Currently unreadable (pending) sectors.". On FreeNAS UI I see:
With zpool status I get:
With zpool import I get:
This matches UI, there is no pool for newstorage. I can't import this newstorage though if I run zpool import newstorage I get:
Now on to smartctl checks.
smartctl -a /dev/ada2 results:
According to what I read and understood from the troubleshooting article, the concerning part for me is Current_Pending_Sector being > 0. So, I did the Drive Data Refreshing step, didn't help. I didn't do any other step here I didn't understand well the other steps and I didn't want to make the situation possibly worse. I also don't understand the part "read failure" on the results listed above. I know that is a failure but not sure if just a consequence of the numbers above or if it is an indication of another problem, ...
Just for completeness sake, smartctl -a /dev/ada1 results:
No errors on the drive.
So, my conclusions here and questions are,
Sorry, some of the info below may be useless for you, but just to be sure I'm thorough on what I see and checked.
First problems of error, I got a FreeNAS email with "Device: /dev/ada2, 1 Currently unreadable (pending) sectors.". On FreeNAS UI I see:
With zpool status I get:
Code:
% zpool status pool: freenas-boot state: ONLINE scan: scrub repaired 0 in 0 days 00:01:10 with 0 errors on Thu Feb 13 03:46:10 2020 config: NAME STATE READ WRITE CKSUM freenas-boot ONLINE 0 0 0 ada0p2 ONLINE 0 0 0 errors: No known data errors pool: storage state: ONLINE scan: scrub repaired 0 in 0 days 15:56:09 with 0 errors on Sun Feb 2 17:26:43 2020 config: NAME STATE READ WRITE CKSUM storage ONLINE 0 0 0 ada1p1 ONLINE 0 0 0 errors: No known data errors
With zpool import I get:
Code:
pool: newstorage id: 3896255639125905409 state: ONLINE action: The pool can be imported using its name or numeric identifier. config: newstorage ONLINE mirror-0 ONLINE gptid/8b98e792-1cd7-11e9-8fc5-10bf487fdc2b ONLINE gptid/8c9b5767-1cd7-11e9-8fc5-10bf487fdc2b ONLINE
This matches UI, there is no pool for newstorage. I can't import this newstorage though if I run zpool import newstorage I get:
Code:
cannot import 'newstorage': one or more devices is currently unavailable
Now on to smartctl checks.
smartctl -a /dev/ada2 results:
Code:
smartctl 6.6 2017-11-05 r4594 [FreeBSD 11.2-STABLE amd64] (local build) Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Western Digital Red Device Model: WDC WD40EFRX-68N32N0 Serial Number: WD-WCC7K1AKUS29 LU WWN Device Id: 5 0014ee 2101135aa Firmware Version: 82.00A82 User Capacity: 4,000,787,030,016 bytes [4.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 5400 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: 3.0 Gb/s) Local Time is: Sat Feb 15 12:10:47 2020 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: (44520) 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: ( 472) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. SCT capabilities: (0x303d) 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 195 189 051 Pre-fail Always - 245 3 Spin_Up_Time 0x0027 241 165 021 Pre-fail Always - 2916 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 69 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 088 088 000 Old_age Always - 9281 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 - 69 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 65 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 2526 194 Temperature_Celsius 0x0022 113 107 000 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 - 1 198 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 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: read failure 90% 9174 3807998688 # 2 Extended offline Completed: read failure 90% 9170 3807998688 # 3 Short offline Completed: read failure 90% 9150 3807998688 # 4 Extended offline Completed: read failure 90% 9147 3807998688 # 5 Extended offline Completed: read failure 90% 9142 3807998688 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.
According to what I read and understood from the troubleshooting article, the concerning part for me is Current_Pending_Sector being > 0. So, I did the Drive Data Refreshing step, didn't help. I didn't do any other step here I didn't understand well the other steps and I didn't want to make the situation possibly worse. I also don't understand the part "read failure" on the results listed above. I know that is a failure but not sure if just a consequence of the numbers above or if it is an indication of another problem, ...
Just for completeness sake, smartctl -a /dev/ada1 results:
Code:
smartctl 6.6 2017-11-05 r4594 [FreeBSD 11.2-STABLE amd64] (local build) Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Western Digital Red Device Model: WDC WD40EFRX-68WT0N0 Serial Number: WD-WCC4E0694999 LU WWN Device Id: 5 0014ee 25ef1ab53 Firmware Version: 80.00A80 User Capacity: 4,000,787,030,016 bytes [4.00 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: Sat Feb 15 12:11:32 2020 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: (54300) 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: ( 543) 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 - 10 3 Spin_Up_Time 0x0027 208 174 021 Pre-fail Always - 6566 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 192 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 033 033 000 Old_age Always - 49593 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 - 191 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 139 193 Load_Cycle_Count 0x0032 197 197 000 Old_age Always - 9497 194 Temperature_Celsius 0x0022 113 106 000 Old_age Always - 39 196 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% 49485 - # 2 Short offline Completed without error 00% 49461 - # 3 Short offline Completed without error 00% 49450 - # 4 Extended offline Completed without error 00% 49414 - # 5 Short offline Completed without error 00% 49294 - # 6 Short offline Completed without error 00% 49067 - # 7 Extended offline Completed without error 00% 49054 - # 8 Short offline Completed without error 00% 48947 - # 9 Short offline Completed without error 00% 48707 - #10 Extended offline Completed without error 00% 48670 - #11 Short offline Completed without error 00% 48540 - #12 Short offline Completed without error 00% 48324 - #13 Extended offline Completed without error 00% 48316 - #14 Short offline Completed without error 00% 48209 - #15 Short offline Completed without error 00% 47969 - #16 Extended offline Completed without error 00% 47935 - #17 Short offline Completed without error 00% 47802 - #18 Short offline Completed without error 00% 47610 - #19 Extended offline Completed without error 00% 47597 - #20 Short offline Completed without error 00% 47490 - #21 Short offline Completed without error 00% 47250 - 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.
No errors on the drive.
So, my conclusions here and questions are,
- Yes, there is a problem with ada2. My doubt here, from my understanding the problem of Current_Pending_Sector being 1 shouldn't be big enough to make the drive completely offline... What am I missing? Is there anything I can do before going to replacing hardware (cable and/or disk)?
- If I replace the drive, what shall I expect? The pool is offline, I can't import it now,... When I replace the drive will I be able to import the pool? Will it resilver by itself and everything will be magical again? From reading the manual on replacing drives, I'm supposed to put the pool offline, but it seems it is already offline. I can't see now any option to 'replace', but will I see it when I've put in the new drive?