In this chapter, we took a look at what storage options are supported by Proxmox and their advantages and disadvantages. We also saw the types of virtual image files that can be used with Proxmox and when to use them. Storage is an important component for Proxmox clustering. Since a storage system is where virtual machines are created and operated from, a properly implemented storage system is very critical to make any cluster a successful one. With proper planning of different storage needs and choosing the right format and option, a lot of hassle and frustration can be minimized later on.

In the previous chapter, we very briefly saw the arguments usage in the Proxmox configuration files. In the next chapter, Chapter 4, A Virtual Machine for a Virtual World, we will analyze those arguments in greater detail to extend the cluster ability beyond just its default. Using arguments, we can enable features such as sound, USB, backup performance, and so on for a virtual machine.