root@freenas:~ # smartctl -a /dev/da1 smartctl 6.6 2017-11-05 r4594 [FreeBSD 11.1-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 WD30EFRX-68EUZN0 Serial Number: WD-WCC4N2VAKULA LU WWN Device Id: 5 0014ee 264df62e3 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: Fri Aug 16 21:59:43 2019 CST 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: ( 121) The previous self-test completed having the read element of the test failed. Total time to complete Offline data collection: (41520) 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: ( 417) 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 - 179 3 Spin_Up_Time 0x0027 186 180 021 Pre-fail Always - 5683 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 59 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 - 11769 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 - 59 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 57 193 Load_Cycle_Count 0x0032 199 199 000 Old_age Always - 5530 194 Temperature_Celsius 0x0022 119 111 000 Old_age Always - 31 196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 33 198 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 Extended offline Completed: read failure 90% 11765 22232384 # 2 Extended offline Completed: read failure 90% 11756 22232384 # 3 Short offline Completed without error 00% 2651 - # 4 Short offline Completed without error 00% 2627 - # 5 Short offline Completed without error 00% 2603 - # 6 Short offline Completed without error 00% 2579 - # 7 Short offline Completed without error 00% 2555 - # 8 Short offline Completed without error 00% 2531 - # 9 Short offline Completed without error 00% 2507 - #10 Short offline Completed without error 00% 2483 - #11 Short offline Completed without error 00% 2459 - #12 Short offline Completed without error 00% 2435 - #13 Short offline Completed without error 00% 2411 - #14 Short offline Completed without error 00% 2387 - #15 Short offline Completed without error 00% 2363 - #16 Short offline Completed without error 00% 2341 - #17 Short offline Completed without error 00% 2317 - #18 Short offline Completed without error 00% 2293 - #19 Short offline Completed without error 00% 2269 - #20 Short offline Completed without error 00% 2245 - #21 Short offline Completed without error 00% 2221 - 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.