TrueNAS isn’t supported as a VM. This doesn’t prevent people from doing it anyway, but it might be relevant for you.
I’ve seen performance comparisons on the web and there is a slight advantage to Proxmox, but nearly insignificant. It really boils down to what you’re more comfortable maintaining.
Note that your can run docker containers for the services you run in your Debian server. Docker will run faster than any VM.
MangoPenguin@lemmy.blahaj.zone 8 months ago
Proxmox has a built in backups system, and also handles LXC containers.
Also proxmox can run ZFS just like TrueNAS, so there is little reason to use TrueNAS instead of Proxmox unless you’re just wanting a pure NAS with nothing else.