Security is the first thing that comes to mind. Compartmentalization prevents or at least makes it considerably harder for compromised services to screw up all the others.
Another thing would be that it might be easier to manage backups and snapshots.
Why do you use two separate Debian VMs plus a truenas VM running nextcloud?
Security is the first thing that comes to mind. Compartmentalization prevents or at least makes it considerably harder for compromised services to screw up all the others.
Another thing would be that it might be easier to manage backups and snapshots.
From my understanding, it’s helpful that each VM will have its own IP so ports can be opened only on specific VMs, increasing overall security.