Birmingham mumbai

[
 187 
]
Further reading
•  Getting Started with tmux: 
https://learnlinux.link/tmux
•  Ham Vocke, 
A Quick and Easy Guide to tmux
: 
http://www.hamvocke.com/blog/
a-quick-and-easy-guide-to-tmux/
•  Tmux Cheat Sheet and Quick Reference: 
https://tmuxcheatsheet.com/
•  crontab guru: 
https://crontab.guru/

---

---

[
 189 
]
8
Monitoring System 
Resources
In the last chapter, we learned how we can manage tasks that are running on our 
server. We now know how to see what's running in the background, how to enable 
or disable a unit from starting at boot time, and also how to schedule tasks to run 
in the future. But in order for us to be able to effectively manage the tasks that our 
servers carry out, we also need to keep an eye on system resources. If we run out of 
RAM, fill up our disk, or overload our CPU, then a server that normally processes 
tasks very efficiently might come to a screeching halt. In this chapter, we'll take a 
look at these resources and how to monitor them.
Our discussion on resource management will include:
•  Viewing disk usage
•  Monitoring memory usage
•  Understanding load average
•  Viewing resource usage with 
htop
One resource that is extremely important on our servers is storage, and keeping track 
of such things as available disk space is critical as even the most powerful server you 
can purchase would be unable to function without free disk space. We'll take a look 
at some ways to monitor disk usage in the next section.

---

Monitoring System Resources