It is important to monitor hard drive temperature to ensure it's within the optimal operating temperature to ensure it's longevity.

Harddrive or harddisk normally has built in temperature sensor. Thermal information of the hard drive is managed by the harddrive's built-in S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) system.

Harddisk temperature information can be viewed using hddtemp utility at the terminal in Linux.

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Steps to view harddrive temperature in Linux:

  1. Launch a terminal application.
  2. Install hddtemp utility.
    $ sudo apt update && sudo apt install --assume-yes hddtemp 
  3. Start hddtemp service.
    $ sudo systemctl start hddtemp
  4. Configure hddtemp service to automatically start during system boot.
    $ sudo systemctl enable hddtemp
    hddtemp.service is not a native service, redirecting to systemd-sysv-install.
    Executing: /lib/systemd/systemd-sysv-install enable hddtemp
  5. View available disk drives.
    $ lsblk | grep disk
    sda      8:0    0 465.8G  0 disk
  6. View temperature of selected disk drive.
    $ sudo hddtemp /dev/sda
    /dev/sda: TOSHIBA MQ01ACF050: 39°C
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