Let's learn some useful iostat command with examples. Iostat is primarily used for displaying input/output statistics of disks attached to the system. When the command is run for the first time with these arguments, the first report contains information since the system was boot, while each subsequent report covers the time period since the last report was generated.

Count parameter allows you to specify the number of reports that are generated before iostat exits.

interval parameter specifies the duration of time in seconds between each report.

You can provide two optional parameters to change this:

When the command is run without arguments, it generates a detailed report containing information since the system was booted. On Fedora and CentOS Stream the collection process is by default enabled in /etc/cron.d. To enable systsat on Debian-based system including Ubuntu, simply edit /etc/default/sysstat file. On Debian / Ubuntu / Linux Mint apt install sysstat On RedHat / CentOS Stream / Fedora yum install sysstat If iostat command is not found you need to install the package. The iostat creates reports that can be used to change system configuration to better balance the input/output between physical disks.īy default iostat is installed in most Linux Distributions. It is used to measure or monitor the system's input/output (I/O) device load by observing the time the devices are active in relation to their average transfer rates. Iostat stands for input/output statistics.

A sudo user, root user, or a normal user account.

Familiarity with the Linux command-line interface.

A Linux system with multiple running applications and processes.

In this tutorial, we learn about iostat command in Linux with some useful examples. To identify any storage issue with the local or remote disk it's important to monitor input/output statistics. For any application, the main performance factor is how to underlying storage device performs.

Linux cpu stats