Linux command
hdparm 命令
安全
权限或系统影响较大，执行前请核对目标。
常用示例
Get device identification info
sudo hdparm -I [/dev/sda]
Test buffered and cached read speed
sudo hdparm -tT [/dev/sda]
Get or set write-caching
sudo hdparm -W [1] [/dev/sda]
Show current power mode status
sudo hdparm -C [/dev/sda]
Set Advanced Power Management level
sudo hdparm -B [127] [/dev/sda]
Set standby timeout
sudo hdparm -S [60] [/dev/sda]
Force drive into standby mode
sudo hdparm -y [/dev/sda]
说明
hdparm gets and sets SATA/IDE hard drive parameters. It can display device information, configure power management settings, test performance, and enable or disable drive features.
参数
- -I
- Display detailed device identification
- -i
- Display kernel's cached identification info
- -B _value_
- Get or set Advanced Power Management (1-254)
- -C
- Display current power mode status
- -S _value_
- Set standby timeout (0=off, 1-240=5s increments, 241-251=30m increments)
- -y
- Force drive into standby mode
- -Y
- Force drive into sleep mode (may require hard reset)
- -t
- Test buffered read speed
- -T
- Test cache read speed
- -g
- Display drive geometry (cylinders, heads, sectors, size)
- -M _value_
- Get or set Automatic Acoustic Management (0=off, 128=quiet, 254=fast)
- -W _value_
- Get or set write-caching (0=off, 1=on)
- -F
- Flush drive write cache
- --security-erase _password_
- Secure erase the drive (WARNING: destroys all data)
FAQ
What is the hdparm command used for?
hdparm gets and sets SATA/IDE hard drive parameters. It can display device information, configure power management settings, test performance, and enable or disable drive features.
How do I run a basic hdparm example?
Run `sudo hdparm -I [/dev/sda]` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -I do in hdparm?
Display detailed device identification