blkreplay command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

blkreplay: command not found

or when using sudo you get the following error message

sudo: blkreplay: command not found

Solutions to blkreplay: command not found

How To Fix blkreplay: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu blkreplay is provided by blkreplay package.

blkreplay is:

blkreplay is a utility driving the block layer of the operating system while measuring latency and throughput of I/O operations for later visualisation.

blkreplay can create artificial loads (random read-write sweeps, various kinds of overload tests) or replay natural loads which have been recorded by blktrace or a similar utility run at production servers.

blkreplay can be used to test physical hardware, to compare different brands of hard disks or RAID controllers, to evaluate the effect of SSD caching, to compare different block level transports like iSCSI vs Fibrechannel and so on.

To fix this problem, we can install more using the command below.

sudo apt-get -y install blkreplay

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install blkreplay.

sudo apt -y install blkreplay

Or if you have aptitude installed you can use the following command.

sudo aptitude install blkreplay

Summary

In this tutorial we learn how to fix blkreplay command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.