Introduction

A storage is where virtual disk images of virtual machines reside. There are many different types of storage systems with many different features, performances, and use case scenarios. Whether it is a local storage configured with direct attached disks or a shared storage with hundreds of disks, the main responsibility of a storage is to hold virtual disk images, templates, backups, and so on. Proxmox supports different types of storages, such as NFS, Ceph, GlusterFS, and ZFS. Different storage types can hold different types of data.

For example, a local storage can hold any type of data, such as disk images, ISO/container templates, backup files and so on. A Ceph storage, on the other hand, can only hold a .raw format disk image. In order to provide the right type of storage for the right scenario, it is vital to have a proper understanding of different types of storages. The full details of each storage is beyond the scope of this book, but we will look at how to connect them...