Smartctl Output Analyze
输出如下：
# smartctl -aj /dev/bus/0 -d megaraid,10
{
"json_format_version": [
1,
0
],
"smartctl": {
"version": [
7,
2
],
"svn_revision": "5155",
"platform_info": "x86_64-linux-5.14.0-162.23.1.el9_1.x86_64",
"build_info": "(local build)",
"argv": [
"smartctl",
"-aj",
"/dev/bus/0",
"-d",
"megaraid,10"
],
"messages": [
{
"string": "Warning: This result is based on an Attribute check.",
"severity": "warning"
}
],
"exit_status": 68
},
"device": {
"name": "/dev/bus/0",
"info_name": "/dev/bus/0 [megaraid_disk_10] [SAT]",
"type": "sat+megaraid,10",
"protocol": "ATA"
},
"model_name": "HUH721010ALE600",
"serial_number": "JEJPJDPN",
"wwn": {
"naa": 5,
"oui": 3274,
"id": 10333059174
},
"firmware_version": "T3C0",
"user_capacity": {
"blocks": 19532873728,
"bytes": 10000831348736
},
"logical_block_size": 512,
"physical_block_size": 4096,
"rotation_rate": 7200,
"form_factor": {
"ata_value": 2,
"name": "3.5 inches"
},
"trim": {
"supported": false
},
"in_smartctl_database": false,
"ata_version": {
"string": "ACS-2, ATA8-ACS T13/1699-D revision 4",
"major_value": 1020,
"minor_value": 41
},
"sata_version": {
"string": "SATA 3.2",
"value": 255
},
"interface_speed": {
"max": {
"sata_value": 14,
"string": "6.0 Gb/s",
"units_per_second": 60,
"bits_per_unit": 100000000
},
"current": {
"sata_value": 3,
"string": "6.0 Gb/s",
"units_per_second": 60,
"bits_per_unit": 100000000
}
},
"local_time": {
"time_t": 1750070060,
"asctime": "Mon Jun 16 18:34:20 2025 CST"
},
"smart_status": {
"passed": true
},
"ata_smart_data": {
"offline_data_collection": {
"status": {
"value": 130,
"string": "was completed without error",
"passed": true
},
"completion_seconds": 93
},
"self_test": {
"status": {
"value": 0,
"string": "completed without error",
"passed": true
},
"polling_minutes": {
"short": 2,
"extended": 1250
}
},
"capabilities": {
"values": [
91,
3
],
"exec_offline_immediate_supported": true,
"offline_is_aborted_upon_new_cmd": false,
"offline_surface_scan_supported": true,
"self_tests_supported": true,
"conveyance_self_test_supported": false,
"selective_self_test_supported": true,
"attribute_autosave_enabled": true,
"error_logging_supported": true,
"gp_logging_supported": true
}
},
"ata_sct_capabilities": {
"value": 61,
"error_recovery_control_supported": true,
"feature_control_supported": true,
"data_table_supported": true
},
"ata_smart_attributes": {
"revision": 16,
"table": [
{
"id": 1,
"name": "Raw_Read_Error_Rate",
"value": 100,
"worst": 79,
"thresh": 16,
"when_failed": "",
"flags": {
"value": 11,
"string": "PO-R-- ",
"prefailure": true,
"updated_online": true,
"performance": false,
"error_rate": true,
"event_count": false,
"auto_keep": false
},
"raw": {
"value": 0,
"string": "0"
}
},
{
"id": 2,
"name": "Throughput_Performance",
"value": 134,
"worst": 100,
"thresh": 54,
"when_failed": "",
"flags": {
"value": 5,
"string": "P-S--- ",
"prefailure": true,
"updated_online": false,
"performance": true,
"error_rate": false,
"event_count": false,
"auto_keep": false
},
"raw": {
"value": 96,
"string": "96"
}
},
{
"id": 3,
"name": "Spin_Up_Time",
"value": 155,
"worst": 100,
"thresh": 24,
"when_failed": "",
"flags": {
"value": 7,
"string": "POS--- ",
"prefailure": true,
"updated_online": true,
"performance": true,
"error_rate": false,
"event_count": false,
"auto_keep": false
},
"raw": {
"value": 34386280890,
"string": "442 (Average 405)"
}
},
{
"id": 4,
"name": "Start_Stop_Count",
"value": 100,
"worst": 100,
"thresh": 0,
"when_failed": "",
"flags": {
"value": 18,
"string": "-O--C- ",
"prefailure": false,
"updated_online": true,
"performance": false,
"error_rate": false,
"event_count": true,
"auto_keep": false
},
"raw": {
"value": 27,
"string": "27"
}
},
{
"id": 5,
"name": "Reallocated_Sector_Ct",
"value": 100,
"worst": 100,
"thresh": 5,
"when_failed": "",
"flags": {
"value": 51,
"string": "PO--CK ",
"prefailure": true,
"updated_online": true,
"performance": false,
"error_rate": false,
"event_count": true,
"auto_keep": true
},
"raw": {
"value": 0,
"string": "0"
}
},
{
"id": 7,
"name": "Seek_Error_Rate",
"value": 100,
"worst": 100,
"thresh": 67,
"when_failed": "",
"flags": {
"value": 11,
"string": "PO-R-- ",
"prefailure": true,
"updated_online": true,
"performance": false,
"error_rate": true,
"event_count": false,
"auto_keep": false
},
"raw": {
"value": 0,
"string": "0"
}
},
{
"id": 8,
"name": "Seek_Time_Performance",
"value": 128,
"worst": 100,
"thresh": 20,
"when_failed": "",
"flags": {
"value": 5,
"string": "P-S--- ",
"prefailure": true,
"updated_online": false,
"performance": true,
"error_rate": false,
"event_count": false,
"auto_keep": false
},
"raw": {
"value": 18,
"string": "18"
}
},
{
"id": 9,
"name": "Power_On_Hours",
"value": 93,
"worst": 93,
"thresh": 0,
"when_failed": "",
"flags": {
"value": 18,
"string": "-O--C- ",
"prefailure": false,
"updated_online": true,
"performance": false,
"error_rate": false,
"event_count": true,
"auto_keep": false
},
"raw": {
"value": 54075,
"string": "54075"
}
},
{
"id": 10,
"name": "Spin_Retry_Count",
"value": 100,
"worst": 100,
"thresh": 60,
"when_failed": "",
"flags": {
"value": 19,
"string": "PO--C- ",
"prefailure": true,
"updated_online": true,
"performance": false,
"error_rate": false,
"event_count": true,
"auto_keep": false
},
"raw": {
"value": 0,
"string": "0"
}
},
{
"id": 12,
"name": "Power_Cycle_Count",
"value": 100,
"worst": 100,
"thresh": 0,
"when_failed": "",
"flags": {
"value": 50,
"string": "-O--CK ",
"prefailure": false,
"updated_online": true,
"performance": false,
"error_rate": false,
"event_count": true,
"auto_keep": true
},
"raw": {
"value": 23,
"string": "23"
}
},
{
"id": 22,
"name": "Unknown_Attribute",
"value": 100,
"worst": 100,
"thresh": 25,
"when_failed": "",
"flags": {
"value": 35,
"string": "PO---K ",
"prefailure": true,
"updated_online": true,
"performance": false,
"error_rate": false,
"event_count": false,
"auto_keep": true
},
"raw": {
"value": 100,
"string": "100"
}
},
{
"id": 192,
"name": "Power-Off_Retract_Count",
"value": 99,
"worst": 99,
"thresh": 0,
"when_failed": "",
"flags": {
"value": 50,
"string": "-O--CK ",
"prefailure": false,
"updated_online": true,
"performance": false,
"error_rate": false,
"event_count": true,
"auto_keep": true
},
"raw": {
"value": 2119,
"string": "2119"
}
},
{
"id": 193,
"name": "Load_Cycle_Count",
"value": 99,
"worst": 99,
"thresh": 0,
"when_failed": "",
"flags": {
"value": 18,
"string": "-O--C- ",
"prefailure": false,
"updated_online": true,
"performance": false,
"error_rate": false,
"event_count": true,
"auto_keep": false
},
"raw": {
"value": 2119,
"string": "2119"
}
},
{
"id": 194,
"name": "Temperature_Celsius",
"value": 240,
"worst": 166,
"thresh": 0,
"when_failed": "",
"flags": {
"value": 2,
"string": "-O---- ",
"prefailure": false,
"updated_online": true,
"performance": false,
"error_rate": false,
"event_count": false,
"auto_keep": false
},
"raw": {
"value": 154620264473,
"string": "25 (Min/Max 22/36)"
}
},
{
"id": 196,
"name": "Reallocated_Event_Count",
"value": 100,
"worst": 100,
"thresh": 0,
"when_failed": "",
"flags": {
"value": 50,
"string": "-O--CK ",
"prefailure": false,
"updated_online": true,
"performance": false,
"error_rate": false,
"event_count": true,
"auto_keep": true
},
"raw": {
"value": 0,
"string": "0"
}
},
{
"id": 197,
"name": "Current_Pending_Sector",
"value": 100,
"worst": 100,
"thresh": 0,
"when_failed": "",
"flags": {
"value": 34,
"string": "-O---K ",
"prefailure": false,
"updated_online": true,
"performance": false,
"error_rate": false,
"event_count": false,
"auto_keep": true
},
"raw": {
"value": 0,
"string": "0"
}
},
{
"id": 198,
"name": "Offline_Uncorrectable",
"value": 100,
"worst": 100,
"thresh": 0,
"when_failed": "",
"flags": {
"value": 8,
"string": "---R-- ",
"prefailure": false,
"updated_online": false,
"performance": false,
"error_rate": true,
"event_count": false,
"auto_keep": false
},
"raw": {
"value": 0,
"string": "0"
}
},
{
"id": 199,
"name": "UDMA_CRC_Error_Count",
"value": 200,
"worst": 200,
"thresh": 0,
"when_failed": "",
"flags": {
"value": 10,
"string": "-O-R-- ",
"prefailure": false,
"updated_online": true,
"performance": false,
"error_rate": true,
"event_count": false,
"auto_keep": false
},
"raw": {
"value": 0,
"string": "0"
}
}
]
},
"power_on_time": {
"hours": 54075
},
"power_cycle_count": 23,
"temperature": {
"current": 25
},
"ata_smart_error_log": {
"summary": {
"revision": 1,
"count": 170,
"logged_count": 5,
"table": [
{
"error_number": 170,
"lifetime_hours": 51289,
"completion_registers": {
"error": 64,
"status": 67,
"count": 0,
"lba": 0,
"device": 0
},
"error_description": "Error: UNC at LBA = 0x00000000 = 0",
"previous_commands": [
{
"registers": {
"command": 96,
"features": 0,
"count": 8,
"lba": 6835712,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184204448,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 96,
"features": 8,
"count": 64,
"lba": 4583992,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184197528,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 97,
"features": 0,
"count": 208,
"lba": 5204480,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184197527,
"command_name": "WRITE FPDMA QUEUED"
},
{
"registers": {
"command": 97,
"features": 0,
"count": 200,
"lba": 5203968,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184197527,
"command_name": "WRITE FPDMA QUEUED"
},
{
"registers": {
"command": 97,
"features": 0,
"count": 192,
"lba": 5203456,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184197527,
"command_name": "WRITE FPDMA QUEUED"
}
]
},
{
"error_number": 169,
"lifetime_hours": 51289,
"completion_registers": {
"error": 64,
"status": 67,
"count": 0,
"lba": 0,
"device": 0
},
"error_description": "Error: UNC at LBA = 0x00000000 = 0",
"previous_commands": [
{
"registers": {
"command": 96,
"features": 0,
"count": 0,
"lba": 6834688,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184197219,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 96,
"features": 16,
"count": 168,
"lba": 8960,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184190292,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 96,
"features": 16,
"count": 160,
"lba": 8992,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184190292,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 96,
"features": 8,
"count": 152,
"lba": 9176,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184190292,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 96,
"features": 24,
"count": 144,
"lba": 9136,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184190292,
"command_name": "READ FPDMA QUEUED"
}
]
},
{
"error_number": 168,
"lifetime_hours": 51289,
"completion_registers": {
"error": 64,
"status": 67,
"count": 0,
"lba": 0,
"device": 0
},
"error_description": "Error: UNC at LBA = 0x00000000 = 0",
"previous_commands": [
{
"registers": {
"command": 96,
"features": 0,
"count": 0,
"lba": 6834176,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184189985,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 97,
"features": 8,
"count": 120,
"lba": 8395496,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184189538,
"command_name": "WRITE FPDMA QUEUED"
},
{
"registers": {
"command": 97,
"features": 8,
"count": 112,
"lba": 8413448,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184189538,
"command_name": "WRITE FPDMA QUEUED"
},
{
"registers": {
"command": 97,
"features": 8,
"count": 104,
"lba": 8529864,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184189538,
"command_name": "WRITE FPDMA QUEUED"
},
{
"registers": {
"command": 97,
"features": 8,
"count": 96,
"lba": 4206856,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2184189538,
"command_name": "WRITE FPDMA QUEUED"
}
]
},
{
"error_number": 167,
"lifetime_hours": 51289,
"completion_registers": {
"error": 64,
"status": 67,
"count": 0,
"lba": 0,
"device": 0
},
"error_description": "Error: UNC at LBA = 0x00000000 = 0",
"previous_commands": [
{
"registers": {
"command": 96,
"features": 0,
"count": 248,
"lba": 15501824,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2183755972,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 96,
"features": 0,
"count": 240,
"lba": 9019904,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2183748858,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 96,
"features": 0,
"count": 232,
"lba": 9019392,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2183748858,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 96,
"features": 0,
"count": 224,
"lba": 9018880,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2183748858,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 96,
"features": 0,
"count": 216,
"lba": 9018368,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2183748858,
"command_name": "READ FPDMA QUEUED"
}
]
},
{
"error_number": 166,
"lifetime_hours": 51289,
"completion_registers": {
"error": 64,
"status": 67,
"count": 0,
"lba": 0,
"device": 0
},
"error_description": "Error: UNC at LBA = 0x00000000 = 0",
"previous_commands": [
{
"registers": {
"command": 96,
"features": 0,
"count": 168,
"lba": 15501824,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2183748397,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 96,
"features": 32,
"count": 136,
"lba": 7669728,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2183741474,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 96,
"features": 224,
"count": 64,
"lba": 8783872,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2183741474,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 96,
"features": 80,
"count": 136,
"lba": 4948536,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2183741473,
"command_name": "READ FPDMA QUEUED"
},
{
"registers": {
"command": 96,
"features": 0,
"count": 64,
"lba": 7647680,
"device": 64,
"device_control": 0
},
"powerup_milliseconds": 2183741462,
"command_name": "READ FPDMA QUEUED"
}
]
}
]
}
},
"ata_smart_self_test_log": {
"standard": {
"revision": 1,
"table": [
{
"type": {
"value": 2,
"string": "Extended offline"
},
"status": {
"value": 0,
"string": "Completed without error",
"passed": true
},
"lifetime_hours": 18
},
{
"type": {
"value": 1,
"string": "Short offline"
},
"status": {
"value": 0,
"string": "Completed without error",
"passed": true
},
"lifetime_hours": 2
}
],
"count": 2,
"error_count_total": 0,
"error_count_outdated": 0
}
},
"ata_smart_selective_self_test_log": {
"revision": 1,
"table": [
{
"lba_min": 0,
"lba_max": 0,
"status": {
"value": 0,
"string": "Not_testing"
}
},
{
"lba_min": 0,
"lba_max": 0,
"status": {
"value": 0,
"string": "Not_testing"
}
},
{
"lba_min": 0,
"lba_max": 0,
"status": {
"value": 0,
"string": "Not_testing"
}
},
{
"lba_min": 0,
"lba_max": 0,
"status": {
"value": 0,
"string": "Not_testing"
}
},
{
"lba_min": 0,
"lba_max": 0,
"status": {
"value": 0,
"string": "Not_testing"
}
}
],
"flags": {
"value": 0,
"remainder_scan_enabled": false
},
"power_up_scan_resume_minutes": 0
}
}
分析如下
我们首先看一下硬盘的基本信息：
型号：HUH721010ALE600
序列号：JEJPJDPN
容量：10,000,831,348,736 字节（约10TB）
接口：SATA 3.2, 6.0 Gb/s
转速：7200 RPM
使用时间：54075 小时（约6.17年）
通电次数：23次
关键点分析：
SMART状态：passed: true，表示SMART总体状态通过。
关键属性：
Reallocated_Sector_Ct (ID 5): 原始值=0，表示没有重映射扇区。
Current_Pending_Sector (ID 197): 原始值=0，表示没有等待重映射的扇区。
Offline_Uncorrectable (ID 198): 原始值=0，表示没有离线无法修复的扇区。
UDMA_CRC_Error_Count (ID 199): 原始值=0，表示没有接口通信错误。
以上都是非常关键的健康指标，目前都为0，是良好的状态。
其他属性：
Raw_Read_Error_Rate (ID 1): 原始值为0，正常。
Spin_Up_Time (ID 3): 原始值较大，但显示字符串为"442 (Average 405)"，说明自检的旋转时间在正常范围。
Start_Stop_Count (ID 4): 27次，通电次数23次，说明有几次可能是意外断电？但次数不多，且属性值100（最好100）正常。
Power_Cycle_Count (ID 12): 23次，与通电次数一致。
Power_Off_Retract_Count (ID 192): 2119次，这个属性表示磁头因意外断电而缩回的次数。通常这个值应该和通电次数接近，但这里通电次数只有23次，而磁头缩回次数达到2119次，这可能意味着硬盘经常意外断电（比如突然断电），或者是因为RAID卡频繁进行重置？需要关注。
Load_Cycle_Count (ID 193): 2119次，这个值通常表示磁头加载/卸载次数，对于台式机硬盘，设计值通常为30万到60万次，所以2119次不算高，但需要结合其他情况看。
Temperature_Celsius (ID 194): 当前温度为25°C，最高36°C，最低22°C，温度控制良好。
错误日志：
在ata_smart_error_log中，我们看到有5条错误记录（error_number从166到170），这些错误都发生在大约51289小时前（注意当前是54075小时，也就是大约2790小时前，约116天前）。
所有错误都是“UNC”（Uncorrectable Error）错误，发生在LBA 0（可能是日志记录问题，实际LBA可能不同）的读取操作中，错误发生时执行的命令都是FPDMA QUEUED（即NCQ读写）。
这些错误发生在51289小时，而当前已经54075小时，说明是过去发生的错误，而且没有新的错误发生。但是，为什么会有5次读取错误？这可能是因为当时有介质错误或者传输问题，但后续可能已经通过重试成功，或者没有再次发生。
自检日志：
最后一次自检是扩展自检（Extended offline）在18小时（从开始使用算起）完成且无错误，短自检在2小时时完成无错误。但注意，这些自检是很久之前做的（因为使用时间已经5万多小时），所以建议近期再做一次自检。
注意事项：
硬盘已经使用了超过5.4万小时，虽然关键属性都正常，但需要注意备份重要数据，因为任何硬盘在这个使用时间后风险都会增加。
错误日志中记录的错误虽然发生在过去，但也说明硬盘曾经出现过读取错误，这可能是一个早期警告。建议关注后续是否有新的错误出现。
另外，关于192属性（Power-Off_Retract_Count）和193属性（Load_Cycle_Count）都是2119次，而通电次数只有23次，这个比例很奇怪。通常，每次通电可能会有多次磁头加载/卸载，但2000多次相对于23次通电，平均每次通电要发生90多次，这有些偏高。可能的原因是硬盘经常进入节能模式（磁头缩回），或者是RAID卡频繁重置导致。虽然这个值本身并不代表故障，但频繁的磁头加载/卸载会消耗硬盘的机械寿命。
结论：
这块硬盘目前从SMART数据上看是健康的，但是使用时间已经很长（6年多），并且过去发生过读取错误，磁头缩回次数相对通电次数偏高。建议：
- 运行一次完整的SMART自检（长测试）以确认当前状态。
- 密切关注硬盘的SMART数据变化，特别是重映射扇区和待处理扇区的数量。
- 确保重要数据已经备份，因为机械硬盘在长时间使用后故障率会上升。
- 如果可能，检查电源或RAID卡设置，以减少意外断电或硬盘重置的情况。
注意：由于该硬盘不在smartctl数据库（in_smartctl_database: false），一些属性（如ID 22）是未知属性，但我们分析的关键属性都是已知且正常的。