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Monitor Disk I/O activity using IOTOP & IOSTAT commands

Monitor Disk I/O activity using IOTOP & IOSTAT commands

We can monitor I/O activity in linux box using iotop and iostat commands

Use the below command to install iotop in linux system. To install iotop to RHEL/Centos/Scientific Linux, probably you need to enable EPL or REPOFORGE or REMI repository because there is no official package on this.

# Install iotop on Ubuntu/Debian/LinuxMint #
$ sudo apt-get install iotop

# Install iotop on RHEL/Centos/SL/Fedora 21 & older systems #
# yum install iotop

# Install iotop on Fedora 22 & later systems #
# dnf install iotop

# Install iotop on openSUSE #
# zypper install iotop

Use the iotop command to monitor disk I/O on individual process. This tool output smiler to top command

$ iotop -o

Use the below command to install iostat in linux system. You have to install sysstat because iostat is part of sysstat package.

# Install iostat in Ubuntu/Debian/LinuxMint #
$ sudo apt-get install sysstat

# Install iostat on RHEL/Centos/SL/Fedora 21 & older systems #
# yum install sysstat

# Install iostat on Fedora 22 & later systems #
# dnf install sysstat

# Install iostat on openSUSE #
# zypper install sysstat

To print individual hard disk I/O activity, use the iostat command

$ iostat -dx 5

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