Linux 查看硬盘通电时间

今天买了台9刀的便宜（垃圾）独服，通上电，想看看硬盘用了多久。就顺手记录一下 Linux 下查看硬盘通电时间的操作吧，其实也比较简单。

查看硬盘通电时间

Ubuntu / Debian：

apt install smartmontools
smartctl -A /dev/sda

CentOS：

yum install smartmontools
smartctl -A /dev/sda

其中 /dev/sda 是硬盘编号，第一块一般是 /dev/sda，如果有多块硬盘，第二块就是 /dev/sdb，以此类推。

报告说明

一般我们会看到如下的输出：

root@185a140b120c93:~# smartctl -A /dev/sda
smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.13.11-041311-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x0033   120   120   050    Pre-fail  Always       -       0/0
  5 Retired_Block_Count     0x0033   100   100   003    Pre-fail  Always       -       0
  9 Power_On_Hours_and_Msec 0x0032   076   076   000    Old_age   Always       -       21343h+10m+10.810s
 12 Power_Cycle_Count       0x0032   081   081   000    Old_age   Always       -       19663
171 Program_Fail_Count      0x000a   000   000   000    Old_age   Always       -       0
172 Erase_Fail_Count        0x0032   000   000   000    Old_age   Always       -       0
174 Unexpect_Power_Loss_Ct  0x0030   000   000   000    Old_age   Offline      -       19660
177 Wear_Range_Delta        0x0000   000   000   000    Old_age   Offline      -       4
181 Program_Fail_Count      0x000a   000   000   000    Old_age   Always       -       0
182 Erase_Fail_Count        0x0032   000   000   000    Old_age   Always       -       0
187 Reported_Uncorrect      0x0012   100   100   000    Old_age   Always       -       0
189 Airflow_Temperature_Cel 0x0000   029   060   000    Old_age   Offline      -       29 (Min/Max -22/60)
194 Temperature_Celsius     0x0022   029   060   000    Old_age   Always       -       29 (Min/Max -22/60)
195 ECC_Uncorr_Error_Count  0x001c   120   120   000    Old_age   Offline      -       0/0
196 Reallocated_Event_Count 0x0033   100   100   003    Pre-fail  Always       -       0
201 Unc_Soft_Read_Err_Rate  0x001c   120   120   000    Old_age   Offline      -       0/0
204 Soft_ECC_Correct_Rate   0x001c   120   120   000    Old_age   Offline      -       0/0
230 Life_Curve_Status       0x0013   100   100   000    Pre-fail  Always       -       100
231 SSD_Life_Left           0x0013   026   026   010    Pre-fail  Always       -       0
233 SandForce_Internal      0x0032   000   000   000    Old_age   Always       -       128184
234 SandForce_Internal      0x0032   000   000   000    Old_age   Always       -       189875
241 Lifetime_Writes_GiB     0x0032   000   000   000    Old_age   Always       -       189875
242 Lifetime_Reads_GiB      0x0032   000   000   000    Old_age   Always       -       64285

其中的“9”，“Power_On_Hours_and_Msec”，就是硬盘通电时间，可以看到我这块硬盘已经通电 21343h+10m+10.810s，算下来有两年半了，真是垃圾。

参考文献

• https://wiki.vpsmm.com/smartmontools/