- Joined
- Feb 15, 2014
- Messages
- 20,194
A few days ago, my backup server sent me an email about one of the drives (they're all late 2015 3TB WD Reds) had a pending sector. Naturally, I checked the SMART data and most of the failure indicators were low, but non-zero. Since it's a RAIDZ2 pool which is a backup of the main server, I thought I'd let it evolve and see if it degraded further. It did and, more interestingly, it failed a SMART short test:
This is interesting, since it proves that SMART short tests do catch some failures on their own. In turn, that shows that it makes sense to run them daily, between long tests.
For reference, here's another drive from the server, in nominal condition:
Fun fact: This pool had been needing 24 hours for a scrub, which really isn't warranted given that it's low-use and far from full. With the new drive resilvering, it's looking like ~3 hours for a resilver.
Code:
[root@backup] ~# smartctl -x /dev/ada0 smartctl 6.5 2016-05-07 r4318 [FreeBSD 10.3-STABLE amd64] (local build) Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Western Digital Red Device Model: WDC WD30EFRX-68EUZN0 Serial Number: WD-XXXXXXXXXXXX LU WWN Device Id: 5 0014ee 261d2647b Firmware Version: 82.00A82 User Capacity: 3,000,592,982,016 bytes [3.00 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: Thu Apr 13 18:39:58 2017 WEST SMART support is: Available - device has SMART capability. SMART support is: Enabled AAM feature is: Unavailable APM feature is: Unavailable Rd look-ahead is: Enabled Write cache is: Enabled ATA Security is: Disabled, frozen [SEC2] Wt Cache Reorder: 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: ( 121) The previous self-test completed having the read element of the test failed. Total time to complete Offline data collection: (39540) 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: ( 397) 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 FLAGS VALUE WORST THRESH FAIL RAW_VALUE 1 Raw_Read_Error_Rate POSR-K 200 200 051 - 9 3 Spin_Up_Time POS--K 184 180 021 - 5758 4 Start_Stop_Count -O--CK 100 100 000 - 42 5 Reallocated_Sector_Ct PO--CK 200 200 140 - 2 7 Seek_Error_Rate -OSR-K 100 253 000 - 0 9 Power_On_Hours -O--CK 091 091 000 - 6715 10 Spin_Retry_Count -O--CK 100 253 000 - 0 11 Calibration_Retry_Count -O--CK 100 253 000 - 0 12 Power_Cycle_Count -O--CK 100 100 000 - 42 192 Power-Off_Retract_Count -O--CK 200 200 000 - 28 193 Load_Cycle_Count -O--CK 200 200 000 - 1881 194 Temperature_Celsius -O---K 120 115 000 - 30 196 Reallocated_Event_Count -O--CK 198 198 000 - 2 197 Current_Pending_Sector -O--CK 200 200 000 - 1 198 Offline_Uncorrectable ----CK 100 253 000 - 0 199 UDMA_CRC_Error_Count -O--CK 200 200 000 - 1 200 Multi_Zone_Error_Rate ---R-- 200 200 000 - 6 ||||||_ K auto-keep |||||__ C event count ||||___ R error rate |||____ S speed/performance ||_____ O updated online |______ P prefailure warning General Purpose Log Directory Version 1 SMART Log Directory Version 1 [multi-sector log support] Address Access R/W Size Description 0x00 GPL,SL R/O 1 Log Directory 0x01 SL R/O 1 Summary SMART error log 0x02 SL R/O 5 Comprehensive SMART error log 0x03 GPL R/O 6 Ext. Comprehensive SMART error log 0x06 SL R/O 1 SMART self-test log 0x07 GPL R/O 1 Extended self-test log 0x09 SL R/W 1 Selective self-test log 0x10 GPL R/O 1 SATA NCQ Queued Error log 0x11 GPL R/O 1 SATA Phy Event Counters log 0x21 GPL R/O 1 Write stream error log 0x22 GPL R/O 1 Read stream error log 0x80-0x9f GPL,SL R/W 16 Host vendor specific log 0xa0-0xa7 GPL,SL VS 16 Device vendor specific log 0xa8-0xb7 GPL,SL VS 1 Device vendor specific log 0xbd GPL,SL VS 1 Device vendor specific log 0xc0 GPL,SL VS 1 Device vendor specific log 0xc1 GPL VS 93 Device vendor specific log 0xe0 GPL,SL R/W 1 SCT Command/Status 0xe1 GPL,SL R/W 1 SCT Data Transfer SMART Extended Comprehensive Error Log Version: 1 (6 sectors) Device Error Count: 1 CR = Command Register FEATR = Features Register COUNT = Count (was: Sector Count) Register LBA_48 = Upper bytes of LBA High/Mid/Low Registers ] ATA-8 LH = LBA High (was: Cylinder High) Register ] LBA LM = LBA Mid (was: Cylinder Low) Register ] Register LL = LBA Low (was: Sector Number) Register ] DV = Device (was: Device/Head) Register DC = Device Control Register ER = Error register ST = Status register 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 1 [0] occurred at disk power-on lifetime: 6649 hours (277 days + 1 hours) When the command that caused the error occurred, the device was active or idle. After command completion occurred, registers were: ER -- ST COUNT LBA_48 LH LM LL DV DC -- -- -- == -- == == == -- -- -- -- -- 40 -- 51 00 00 00 00 06 1a 5f c8 40 00 Error: UNC at LBA = 0x061a5fc8 = 102391752 Commands leading to the command that caused the error were: CR FEATR COUNT LBA_48 LH LM LL DV DC Powered_Up_Time Command/Feature_Name -- == -- == -- == == == -- -- -- -- -- --------------- -------------------- 60 01 00 00 68 00 00 06 1a 60 c0 40 08 27d+21:22:30.679 READ FPDMA QUEUED 60 01 00 00 60 00 00 06 1a 5f c0 40 08 27d+21:22:30.678 READ FPDMA QUEUED 60 01 00 00 58 00 00 06 1a 5e c0 40 08 27d+21:22:30.677 READ FPDMA QUEUED 60 01 00 00 50 00 00 06 1a 5d c0 40 08 27d+21:22:30.677 READ FPDMA QUEUED 60 00 80 00 48 00 00 06 1a 5c a8 40 08 27d+21:22:30.667 READ FPDMA QUEUED SMART Extended Self-test Log Version: 1 (1 sectors) Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Short offline Completed: read failure 90% 6697 102391753 # 2 Short offline Completed without error 00% 6673 - # 3 Short offline Completed without error 00% 6650 - # 4 Short offline Completed without error 00% 6625 - # 5 Short offline Completed without error 00% 6601 - # 6 Short offline Completed without error 00% 6577 - # 7 Short offline Completed without error 00% 6553 - # 8 Short offline Completed without error 00% 6529 - # 9 Short offline Completed without error 00% 6505 - #10 Short offline Completed without error 00% 6481 - #11 Short offline Completed without error 00% 6457 - #12 Short offline Completed without error 00% 6433 - #13 Extended offline Completed without error 00% 6417 - #14 Short offline Completed without error 00% 6385 - #15 Short offline Completed without error 00% 6361 - #16 Short offline Completed without error 00% 6337 - #17 Short offline Completed without error 00% 6318 - #18 Short offline Completed without error 00% 6289 - 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. SCT Status Version: 3 SCT Version (vendor specific): 258 (0x0102) SCT Support Level: 1 Device State: Active (0) Current Temperature: 30 Celsius Power Cycle Min/Max Temperature: 26/30 Celsius Lifetime Min/Max Temperature: 2/35 Celsius Under/Over Temperature Limit Count: 0/0 Vendor specific: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 SCT Temperature History Version: 2 Temperature Sampling Period: 1 minute Temperature Logging Interval: 1 minute Min/Max recommended Temperature: 0/60 Celsius Min/Max Temperature Limit: -41/85 Celsius Temperature History Size (Index): 478 (161) Index Estimated Time Temperature Celsius 162 2017-04-13 10:42 30 *********** ... ..(298 skipped). .. *********** 461 2017-04-13 15:41 30 *********** 462 2017-04-13 15:42 29 ********** ... ..( 14 skipped). .. ********** 477 2017-04-13 15:57 29 ********** 0 2017-04-13 15:58 30 *********** ... ..(160 skipped). .. *********** 161 2017-04-13 18:39 30 *********** SCT Error Recovery Control: Read: 70 (7.0 seconds) Write: 70 (7.0 seconds) Device Statistics (GP/SMART Log 0x04) not supported SATA Phy Event Counters (GP Log 0x11) ID Size Value Description 0x0001 2 0 Command failed due to ICRC error 0x0002 2 0 R_ERR response for data FIS 0x0003 2 0 R_ERR response for device-to-host data FIS 0x0004 2 0 R_ERR response for host-to-device data FIS 0x0005 2 0 R_ERR response for non-data FIS 0x0006 2 0 R_ERR response for device-to-host non-data FIS 0x0007 2 0 R_ERR response for host-to-device non-data FIS 0x0008 2 0 Device-to-host non-data FIS retries 0x0009 2 5 Transition from drive PhyRdy to drive PhyNRdy 0x000a 2 6 Device-to-host register FISes sent due to a COMRESET 0x000b 2 0 CRC errors within host-to-device FIS 0x000f 2 0 R_ERR response for host-to-device data FIS, CRC 0x0012 2 0 R_ERR response for host-to-device non-data FIS, CRC 0x8000 4 2648897 Vendor specific
This is interesting, since it proves that SMART short tests do catch some failures on their own. In turn, that shows that it makes sense to run them daily, between long tests.
For reference, here's another drive from the server, in nominal condition:
Code:
- The following disk is nominal [root@backup] ~# smartctl -x /dev/ada1 smartctl 6.5 2016-05-07 r4318 [FreeBSD 10.3-STABLE amd64] (local build) Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Family: Western Digital Red Device Model: WDC WD30EFRX-68EUZN0 Serial Number: WD-XXXXXXXXXXXX LU WWN Device Id: 5 0014ee 2b7287b32 Firmware Version: 82.00A82 User Capacity: 3,000,592,982,016 bytes [3.00 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: Thu Apr 13 18:41:40 2017 WEST SMART support is: Available - device has SMART capability. SMART support is: Enabled AAM feature is: Unavailable APM feature is: Unavailable Rd look-ahead is: Enabled Write cache is: Enabled ATA Security is: Disabled, frozen [SEC2] Wt Cache Reorder: 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: (38580) 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: ( 387) 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 FLAGS VALUE WORST THRESH FAIL RAW_VALUE 1 Raw_Read_Error_Rate POSR-K 200 200 051 - 0 3 Spin_Up_Time POS--K 187 182 021 - 5650 4 Start_Stop_Count -O--CK 100 100 000 - 62 5 Reallocated_Sector_Ct PO--CK 200 200 140 - 0 7 Seek_Error_Rate -OSR-K 100 253 000 - 0 9 Power_On_Hours -O--CK 090 090 000 - 7978 10 Spin_Retry_Count -O--CK 100 253 000 - 0 11 Calibration_Retry_Count -O--CK 100 253 000 - 0 12 Power_Cycle_Count -O--CK 100 100 000 - 62 192 Power-Off_Retract_Count -O--CK 200 200 000 - 44 193 Load_Cycle_Count -O--CK 199 199 000 - 4253 194 Temperature_Celsius -O---K 119 114 000 - 31 196 Reallocated_Event_Count -O--CK 200 200 000 - 0 197 Current_Pending_Sector -O--CK 200 200 000 - 0 198 Offline_Uncorrectable ----CK 100 253 000 - 0 199 UDMA_CRC_Error_Count -O--CK 200 200 000 - 0 200 Multi_Zone_Error_Rate ---R-- 200 200 000 - 0 ||||||_ K auto-keep |||||__ C event count ||||___ R error rate |||____ S speed/performance ||_____ O updated online |______ P prefailure warning General Purpose Log Directory Version 1 SMART Log Directory Version 1 [multi-sector log support] Address Access R/W Size Description 0x00 GPL,SL R/O 1 Log Directory 0x01 SL R/O 1 Summary SMART error log 0x02 SL R/O 5 Comprehensive SMART error log 0x03 GPL R/O 6 Ext. Comprehensive SMART error log 0x06 SL R/O 1 SMART self-test log 0x07 GPL R/O 1 Extended self-test log 0x09 SL R/W 1 Selective self-test log 0x10 GPL R/O 1 SATA NCQ Queued Error log 0x11 GPL R/O 1 SATA Phy Event Counters log 0x21 GPL R/O 1 Write stream error log 0x22 GPL R/O 1 Read stream error log 0x80-0x9f GPL,SL R/W 16 Host vendor specific log 0xa0-0xa7 GPL,SL VS 16 Device vendor specific log 0xa8-0xb7 GPL,SL VS 1 Device vendor specific log 0xbd GPL,SL VS 1 Device vendor specific log 0xc0 GPL,SL VS 1 Device vendor specific log 0xc1 GPL VS 93 Device vendor specific log 0xe0 GPL,SL R/W 1 SCT Command/Status 0xe1 GPL,SL R/W 1 SCT Data Transfer SMART Extended Comprehensive Error Log Version: 1 (6 sectors) No Errors Logged SMART Extended Self-test Log Version: 1 (1 sectors) Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Short offline Completed without error 00% 7959 - # 2 Short offline Completed without error 00% 7935 - # 3 Short offline Completed without error 00% 7922 - # 4 Short offline Completed without error 00% 7888 - # 5 Short offline Completed without error 00% 7864 - # 6 Short offline Completed without error 00% 7840 - # 7 Short offline Completed without error 00% 7816 - # 8 Short offline Completed without error 00% 7792 - # 9 Short offline Completed without error 00% 7768 - #10 Short offline Completed without error 00% 7744 - #11 Short offline Completed without error 00% 7720 - #12 Short offline Completed without error 00% 7696 - #13 Extended offline Completed without error 00% 7680 - #14 Short offline Completed without error 00% 7648 - #15 Short offline Completed without error 00% 7624 - #16 Short offline Completed without error 00% 7600 - #17 Short offline Completed without error 00% 7576 - #18 Short offline Completed without error 00% 7552 - 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. SCT Status Version: 3 SCT Version (vendor specific): 258 (0x0102) SCT Support Level: 1 Device State: Active (0) Current Temperature: 31 Celsius Power Cycle Min/Max Temperature: 27/31 Celsius Lifetime Min/Max Temperature: 2/36 Celsius Under/Over Temperature Limit Count: 0/0 Vendor specific: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 SCT Temperature History Version: 2 Temperature Sampling Period: 1 minute Temperature Logging Interval: 1 minute Min/Max recommended Temperature: 0/60 Celsius Min/Max Temperature Limit: -41/85 Celsius Temperature History Size (Index): 478 (197) Index Estimated Time Temperature Celsius 198 2017-04-13 10:44 31 ************ ... ..(476 skipped). .. ************ 197 2017-04-13 18:41 31 ************ SCT Error Recovery Control: Read: 70 (7.0 seconds) Write: 70 (7.0 seconds) Device Statistics (GP/SMART Log 0x04) not supported SATA Phy Event Counters (GP Log 0x11) ID Size Value Description 0x0001 2 0 Command failed due to ICRC error 0x0002 2 0 R_ERR response for data FIS 0x0003 2 0 R_ERR response for device-to-host data FIS 0x0004 2 0 R_ERR response for host-to-device data FIS 0x0005 2 0 R_ERR response for non-data FIS 0x0006 2 0 R_ERR response for device-to-host non-data FIS 0x0007 2 0 R_ERR response for host-to-device non-data FIS 0x0008 2 0 Device-to-host non-data FIS retries 0x0009 2 5 Transition from drive PhyRdy to drive PhyNRdy 0x000a 2 6 Device-to-host register FISes sent due to a COMRESET 0x000b 2 0 CRC errors within host-to-device FIS 0x000f 2 0 R_ERR response for host-to-device data FIS, CRC 0x0012 2 0 R_ERR response for host-to-device non-data FIS, CRC 0x8000 4 2649015 Vendor specific
Fun fact: This pool had been needing 24 hours for a scrub, which really isn't warranted given that it's low-use and far from full. With the new drive resilvering, it's looking like ~3 hours for a resilver.
