Check Disk Speed in Linux From Terminal. How To

In this article you will learn how to check disk speed in Linux from terminal.

We can check Linux disk (HDD or SSD) I/O performance with hdparm command.

Hdparm is a command line utility for Linux to set and view ATA hard disk drive hardware parameters and test performance.

Hdparm Install CentOS / RedHat

$ sudo yum install hdparm -y

Hdparm Install Ubuntu / Debian

$ sudo apt-get install hdparm

Hdparm Usage examples

hdparm with -I option will display information about hard drive

$ hdparm -I /dev/sda

Display all the options:

$ hdparm -h

Hdparm Speed Test

hdparm -Tt /dev/sda will measure show buffered and cached disk read speed.

$ sudo hdparm -Tt /dev/sda

Example output:

/dev/sda: Timing cached reads: 17678 MB in 2.00 seconds = 8850.51 MB/sec Timing buffered disk reads: 1044 MB in 3.00 seconds = 347.94 MB/sec
hdparm Speed Test example

Read also: Internet speed test Linux command line


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