PBS and VM setup questions

[kale]

I configured my Proxmox VE with a drive for Proxmox and one for any VMs/Containers. I have Synology NAS and I have seen a couple guides (below) on backing up my VMs to the NAS but one uses the PBS and the other does not. Not quite sure I see the bonus of PBS (confirmed backups, better restore) but since it is not a often (we hope) event does that matter. It seems PBS comes with quite a bit of overhead running on the NAS so that is the trade. (not advocating for one method just want to understand)

https://www.wundertech.net/how-to-backup-proxmox-to-a-synology-nas/
https://www.derekseaman.com/2023/04...-nfs-for-proxmox-backup-server-datastore.html

My current setup is Ubuntu Server/Docker so I am trying to understand using Ubuntu VM vs. individual LXC. From what I read I don't see a huge space savings using LXC vs Ubuntu VM/Docker. There have been a few times where my 'arrs have gotten hosed and it slowed down the rest of the processes so splitting off the user facing (Plex, Navidrone, Audiobookshelf) would seem to make some sense. I was going to keep my Sonarr, Radarr, qBittorrent, sabNZBd in a VM/Docker but maybe run Plex and such as LXC?

Last questions is has anyone reverse proxy (I am using Traefik) and had all this on its own lan segment?

Sorry for dumb questions I feel like I am drinking from a firehose with all the documentation, guides and forum threads.

 

[Dunuin]

Not quite sure I see the bonus of PBS (confirmed backups, better restore) but since it is not a often (we hope) event does that matter.

There are a lot of advantages: https://forum.proxmox.com/threads/pbs-vs-backup-job-is-pve.140138/post-626593

Problem with PBS as a VM is that you can't do anything with those backups stored on the NAS unless you somehow first get that PBS running again, which will be lost/unavailable with your other VMs. So in case your NAS allows you to run VMs (TrueNAS, Unraid, bigger QNAP/Synology, ...) I would prefer to run that PBS VM on the NAS and not on a PVE node. And keep in mind that PBS needs IOPS performance. It will take a very long to do the GC in case you plan to store multiple TBs of backups without using SSDs as the backup storage.

 

[kale]

Thank you for the link and responding.

I do have a bigger NAS (1821+) so Ryzen Quad-core with 16GB RAM but they are not SSDs. Not sure it matters but I am not storing any data/media on my Proxmox VE machine, I am going to create a mount and point to the NAS as I do now for media. That makes all the VM's front ends so I am not sure if I will have that much to backup or if the configuration will change much from week to week. I don't know if that makes a difference.