smartctl命令详解_smartmontools

root@gucloud:~# apt install smartmontools  
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Suggested packages:
  gsmartcontrol smart-notifier mailx | mailutils
The following NEW packages will be installed:
  smartmontools
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 525 kB of archives.
After this operation, 2,087 kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu focal/main amd64 smartmontools amd64 7.1-1build1 [525 kB]
Fetched 525 kB in 4s (130 kB/s)        
Selecting previously unselected package smartmontools.
(Reading database ... 147536 files and directories currently installed.)
Preparing to unpack .../smartmontools_7.1-1build1_amd64.deb ...
Unpacking smartmontools (7.1-1build1) ...
Setting up smartmontools (7.1-1build1) ...
Created symlink /etc/systemd/system/smartd.service → /lib/systemd/system/smartmontools.service.
Created symlink /etc/systemd/system/multi-user.target.wants/smartmontools.service → /lib/systemd/system/smartmontools.service.
Processing triggers for man-db (2.9.1-1) ...
Processing triggers for systemd (245.4-4ubuntu3.4) ...
root@gucloud:~# smartctl --version  //查看版本
smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-65-generic] (local build)

root@gucloud:~# smartctl -a /dev/sda  //查看sda所有信息
smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-65-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     Qunion P20A 128G   //设备名称
Serial Number:    XSRQ2020011574   //SN码
LU WWN Device Id: 0 000000 000000000
Firmware Version: 1.00
User Capacity:    128,035,676,160 bytes [128 GB] //硬盘大小
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Form Factor:      2.5 inches
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ACS-4 (minor revision not indicated)
SATA Version is:  SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s) 
Local Time is:    Thu Feb 18 06:43:20 2021 UTC
SMART support is: Available - device has SMART capability.
SMART support is: Enabled  //已开启smart

=== START OF READ SMART DATA SECTION ===

root@gucloud:~# smartctl -H /dev/sda 
smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-65-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED  //提示passed成功，Failure失败

root@gucloud:~# smartctl -i /dev/sda
smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-65-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     Qunion P20A 128G
Serial Number:    XSRQ2020011574
LU WWN Device Id: 0 000000 000000000
Firmware Version: 1.00
User Capacity:    128,035,676,160 bytes [128 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Form Factor:      2.5 inches
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   ACS-4 (minor revision not indicated)
SATA Version is:  SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Thu Feb 18 06:56:49 2021 UTC
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

root@gucloud:~# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   26504 MB in  2.00 seconds = 13267.32 MB/sec
 Timing buffered disk reads: 1214 MB in  3.00 seconds = 404.10 MB/sec