Raksmart、QN、VirMach等国外商家都在促销便宜服务器,性价比非常高,要警觉的一点就是很多便宜的独立服务器都用来chia挖矿,硬盘损耗非常大,严重影响硬盘寿命,非常容易损坏。所以购买低端便宜独服要特别注意一下。虽然硬盘坏了,可以要求商家更换硬盘,但是比较麻烦。 我们可以通过几段代码就可以快速检查硬盘状态,只适用于独立服务器,不能用在VPS和VDS上,因为VPS和VDS存储是虚拟化的,不是物理硬盘。 就像我们在PC上检查硬盘是否损坏一样,在独服上也是使用 S.M.A.R.T,来检测和报告硬盘可靠性的各种指标。很多童鞋都知道 S.M.A.R.T,不多讲了。 首先,安装smart-tools软件包。以Debian为例。 apt-get install smartmontools下一步,查询硬盘 smartctl -a /dev/sdg下面是一份几乎全新(使用不到72小时)的西数 6TB SATA硬盘 报告。 # smartctl -a /dev/sdgsmartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.9.0-16-amd64] (local build)Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org=== START OF INFORMATION SECTION ===Device Model: WDC WD6003FZBX-00K5WB0Serial Number: V9JGEZSLLU WWN Device Id: 5 000cca 0bde2c0baFirmware Version: 01.01A01User Capacity: 6,001,175,126,016 bytes [6.00 TB]Sector Sizes: 512 bytes logical, 4096 bytes physicalRotation Rate: 7200 rpmForm Factor: 3.5 inchesDevice is: Not in smartctl database [for details use: -P showall]ATA Version is: ACS-2, ATA8-ACS T13/1699-D revision 4SATA Version is: SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)Local Time is: Sun Jul 11 11:52:27 2021 PDTSMART support is: Available - device has SMART capability.SMART support is: Enabled=== START OF READ SMART DATA SECTION ===SMART overall-health self-assessment test result: PASSEDGeneral SMART Values:Offline data collection status: (0x82) Offline data collection activity was completed without error. Auto Offline Data Collection: Enabled.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: ( 87) seconds.Offline data collectioncapabilities: (0x5b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. Offline surface scan supported. Self-test supported. No 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 routinerecommended polling time: ( 593) minutes.SCT capabilities: (0x0035) SCT Status supported. SCT Feature Control supported. SCT Data Table supported.SMART Attributes Data Structure revision number: 16Vendor Specific SMART Attributes with Thresholds:ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000b 100 100 016 Pre-fail Always - 0 2 Throughput_Performance 0x0004 133 133 054 Old_age Offline - 92 3 Spin_Up_Time 0x0007 100 100 024 Pre-fail Always - 0 4 Start_Stop_Count 0x0012 100 100 000 Old_age Always - 1 5 Reallocated_Sector_Ct 0x0033 100 100 005 Pre-fail Always - 0 7 Seek_Error_Rate 0x000a 100 100 067 Old_age Always - 0 8 Seek_Time_Performance 0x0004 128 128 020 Old_age Offline - 18 9 Power_On_Hours 0x0012 100 100 000 Old_age Always - 69 10 Spin_Retry_Count 0x0012 100 100 060 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 1192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 4193 Load_Cycle_Count 0x0012 100 100 000 Old_age Always - 4194 Temperature_Celsius 0x0002 141 141 000 Old_age Always - 39 (Min/Max 25/41)196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0197 Current_Pending_Sector 0x0022 100 100 000 Old_age Always - 0198 Offline_Uncorrectable 0x0008 100 100 000 Old_age Offline - 0199 UDMA_CRC_Error_Count 0x000a 200 200 000 Old_age Always - 0SMART Error Log Version: 1No Errors LoggedSMART Self-test log structure revision number 1No self-tests have been logged. [To run self-tests, use: smartctl -t]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_testingSelective 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.Power_On_Hours:硬盘通电的总时间。 Power_Cycle_Count:该硬盘多久进行一次电源循环? Raw_Read_Error_Rate, Seek_Error_Rate, Offline_Uncorrectable:这些最好是零。 Reallocated_Event_Coun:理想情况下,应该是零和比较低的数字。 SMART overall-health self-assessment test result:测试结果,通过提示为PASSED。 如果独立服务器的硬盘报告显示寿命已经使用好几年了,或者出现很多错误,可能联系你的主机商,要求进行更换,避免影响项目部署。
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