root@freenas[~]# smartctl -a /dev/ada2 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 AV-GP (AF) Device Model: WDC WD30EURS-63SPKY0 Serial Number: WD-WMC1T0767310 LU WWN Device Id: 5 0014ee 00371f60d Firmware Version: 80.00A80 User Capacity: 3,000,592,982,016 bytes [3.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical 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, 3.0 Gb/s (current: 3.0 Gb/s) Local Time is: Fri Jan 3 08:04:34 2020 PST 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: ( 41) The self-test routine was interrupted by the host with a hard or soft reset. Total time to complete Offline data collection: (41040) 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: ( 412) minutes. Conveyance self-test routine recommended polling time: ( 5) minutes. SCT capabilities: (0x70b5) SCT Status 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 - 20 3 Spin_Up_Time 0x0027 178 177 021 Pre-fail Always - 6083 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 270 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 023 023 000 Old_age Always - 56436 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 - 268 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 232 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 37 194 Temperature_Celsius 0x0022 106 097 000 Old_age Always - 44 196 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 - 1 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 Extended offline Interrupted (host reset) 90% 56429 - # 2 Extended offline Interrupted (host reset) 90% 56429 - # 3 Extended offline Interrupted (host reset) 70% 56405 - # 4 Extended offline Interrupted (host reset) 90% 56400 - # 5 Extended offline Interrupted (host reset) 80% 56396 - # 6 Short offline Completed without error 00% 56341 - # 7 Short offline Completed without error 00% 56174 - # 8 Short offline Completed without error 00% 56149 - # 9 Short offline Completed without error 00% 56149 - #10 Short offline Completed without error 00% 56041 - #11 Short offline Completed without error 00% 56006 - #12 Short offline Completed without error 00% 55965 - #13 Extended offline Completed without error 00% 55952 - #14 Short offline Completed without error 00% 55944 - 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.