[PVE-User] Ceph or Gluster

[Mohamed Sadok Ben Jazia]

Hello list,
In order to set a high scalable proxmox infrastructure with a number of
clusters, i plan to use distributed storing system, for this i have some
questions.
1- I have a choice between Ceph and Gluster, which is better for proxmox.
2- Is it better to install one of those systems on the nodes or on
separated servers.
3- Can this architecture realise a stable product, with VM and LXC
migration (not live migration), store backups and snapshots, store iso
files and lxc container templates.
Thank you