One thing Proxmox is missing (IMHO) is a simple storage sharing system. I ended up just running the kernel NFS server on my Proxmox hypervisor, then sharing disks via a virtual-only LAN to the guest images. Other folks run an NFS server or a full NAS system in a VM under Proxmox.
Proxmox' official solution for this is Ceph but that seems like overkill for a small home setup.
Hyperconverged Ceph is both trivial to set up and amazing. Would highly highly recommend it, it makes everything so much easier when your VMs are backed by RBDs.
Proxmox' official solution for this is Ceph but that seems like overkill for a small home setup.