On Nov 1st I noticed a few entries in the log saying there was an unrecoverable read error as well as the scrub status of that pool stating 128K was repaired. However, there don't seem to be any other indications of issues with the disk or pool. Is there any way I can track down what caused it and find out if there are other issues I should be worried about?
The system is running FreeNAS-9.10.1-U2 (f045a8b) and is using ECC memory.
Entry in the event log:
zpool status
SMART report for da7
The system is running FreeNAS-9.10.1-U2 (f045a8b) and is using ECC memory.
Entry in the event log:
Code:
Nov 1 07:08:12 nas (da7:mps0:0:15:0): READ(10). CDB: 28 00 91 9c 3b 90 00 01 00 00 Nov 1 07:08:12 nas (da7:mps0:0:15:0): CAM status: CCB request completed with an error Nov 1 07:08:12 nas (da7:mps0:0:15:0): Retrying command Nov 1 07:08:12 nas (da7:mps0:0:15:0): READ(10). CDB: 28 00 91 9c 3a 90 00 01 00 00 Nov 1 07:08:12 nas (da7:mps0:0:15:0): CAM status: SCSI Status Error Nov 1 07:08:12 nas (da7:mps0:0:15:0): SCSI status: Check Condition Nov 1 07:08:12 nas (da7:mps0:0:15:0): SCSI sense: MEDIUM ERROR asc:11,0 (Unrecovered read error) Nov 1 07:08:12 nas (da7:mps0:0:15:0): Info: 0x919c3a90 Nov 1 07:08:12 nas (da7:mps0:0:15:0): Error 5, Unretryable error
zpool status
Code:
pool: tank state: ONLINE scan: scrub repaired 128K in 3h17m with 0 errors on Tue Nov 1 07:17:25 2016 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 gptid/2b6dc7a2-7c07-11e6-bd2c-a0369f6ae424 ONLINE 0 0 0 gptid/2c0f957f-7c07-11e6-bd2c-a0369f6ae424 ONLINE 0 0 0 mirror-1 ONLINE 0 0 0 gptid/2cafa959-7c07-11e6-bd2c-a0369f6ae424 ONLINE 0 0 0 gptid/2d5120e4-7c07-11e6-bd2c-a0369f6ae424 ONLINE 0 0 0 mirror-2 ONLINE 0 0 0 gptid/2dee9b44-7c07-11e6-bd2c-a0369f6ae424 ONLINE 0 0 0 gptid/2e86f715-7c07-11e6-bd2c-a0369f6ae424 ONLINE 0 0 0 mirror-3 ONLINE 0 0 0 gptid/d8f0cacf-7deb-11e6-aebb-a0369f6ae424 ONLINE 0 0 0 gptid/dc295780-7deb-11e6-aebb-a0369f6ae424 ONLINE 0 0 0 mirror-4 ONLINE 0 0 0 gptid/e5624a6b-7deb-11e6-aebb-a0369f6ae424 ONLINE 0 0 0 gptid/e8a29f2a-7deb-11e6-aebb-a0369f6ae424 ONLINE 0 0 0 mirror-5 ONLINE 0 0 0 gptid/f215ae1b-7deb-11e6-aebb-a0369f6ae424 ONLINE 0 0 0 gptid/f560e153-7deb-11e6-aebb-a0369f6ae424 ONLINE 0 0 0 errors: No known data errors
SMART report for da7
Code:
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 Pro Device Model: WDC WD3001FFSX-68JNUN0 Serial Number: <redacted> LU WWN Device Id: 5 0014ee 0aea96dda Firmware Version: 81.00A81 User Capacity: 3,000,592,982,016 bytes [3.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 7200 rpm Device is: In smartctl database [for details use: -P show] ATA Version is: ATA8-ACS (minor revision not indicated) SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s) Local Time is: Sun Nov 6 14:31:36 2016 EST 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: (30780) 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: ( 334) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. SCT capabilities: (0x70bd) 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 150 150 021 Pre-fail Always - 11500 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 26 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 084 084 000 Old_age Always - 11942 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 - 26 16 Unknown_Attribute 0x0022 255 000 000 Old_age Always - 8518296030954 183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always - 0 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 25 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 33 194 Temperature_Celsius 0x0022 119 108 000 Old_age Always - 33 196 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% 11906 - # 2 Extended offline Completed without error 00% 11858 - # 3 Short offline Completed without error 00% 11666 - # 4 Extended offline Completed without error 00% 11577 - # 5 Short offline Completed without error 00% 11499 - # 6 Short offline Completed without error 00% 11331 - # 7 Extended offline Completed without error 00% 11242 - # 8 Short offline Completed without error 00% 11163 - # 9 Short offline Completed without error 00% 10947 - #10 Extended offline Completed without error 00% 10660 - #11 Conveyance offline Completed without error 00% 10654 - #12 Short offline Completed without error 00% 10654 - #13 Short offline Completed without error 00% 10611 - #14 Extended offline Completed without error 00% 10523 - #15 Short offline Completed without error 00% 10443 - #16 Short offline Completed without error 00% 10204 - #17 Extended offline Completed without error 00% 10117 - #18 Short offline Completed without error 00% 10036 - #19 Short offline Completed without error 00% 9868 - #20 Extended offline Completed without error 00% 9780 - #21 Short offline Completed without error 00% 9708 - 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.
