In this section, we need to use multiple storage devices for demonstration; please prepare the following before starting with this section. The machine requirement can be either in the physical or virtual form:
One machine should be installed with NAS4free with one extra hard drive as quorum
Three machines are needed to install Proxmox nodes for CEPH storage
A separate hard drive should be installed in each Proxmox node for DRBD storage
Three dedicated machines with one extra hard drive is needed to set up GlusterFS storage
Now, we are going to prepare the storage on the cluster environment. There are different approaches available on the market; we will create shared storage via iSCSI with the NAS4free server.