Hello everyone, I’m fairly new to Proxmox and struggling with my homelab setup. I have two machines running Proxmox 9: an HP EliteDesk 800 G5 Mini (Core i7-9700) and a Dell OptiPlex 7070 Micro (Core i3 9th gen). I’m running into several issues and would appreciate your insights.

  1. Networking Issue on EliteDesk: I have two VMs (both Ubuntu Server 24.04 LTS) on the same bridge (default vmbr0). If I stop or shut down one VM, the other loses internet connectivity. Local access to applications still works. Any ideas on why the bridge is behaving this way?

  2. Backup Setup on OptiPlex: I’m running a Proxmox Backup Server VM with Backblaze B2 as an S3 datastore. This is working fine so far.

  3. Backup Problems on EliteDesk: I’m using default LVM-thin for VMs. Backups take a very long time and often freeze at 1-2%. Shutting down the VM cleanly afterward is nearly impossible. I’ve tried both Stop and Snapshot modes, but the issue persists. When a VM becomes unresponsive, it triggers the networking issue above. Would switching to ZFS help? If so, how can I migrate without losing any data?

  4. Hardware Acceleration for Jellyfin: On the EliteDesk, I’d like to enable hardware acceleration for a VM running Jellyfin (in Docker) using the i7-9700’s UHD 630 iGPU. Can anyone recommend a clear guide specific to this CPU? The Proxmox documentation isn’t very detailed for Intel GPUs.

The networking issue is the most frustrating. Has anyone encountered similar bridge problems? Any advice on fixes or next steps would be greatly appreciated. Thank you!

  • just_another_person@lemmy.worldEnglish
    2·
    1 hour ago
    1. What do you mean “on the same bridge”? A bridged network is a connection from a virtual adapter through the host machine for network access. Is review these connections to make sure you haven’t done something like duplicate an adapter and attempt to share address space. Also confirm which piece of networking is broke: DNS, ping, using DHCP, default gateway?
    2. Pretty sure PBS is advised to NOT be used for targets on the same machine while running in a VM. I’ve seen people with the same issues many times, and it’s because it’s running in a VM and attempting to execute backups on the same instance. It’s supposed to be run a distinctly separate instance itself that can communicate with the clients on all targets.
    3. https://www.wundertech.net/installing-jellyfin-on-proxmox/
    • mitexleoOPAEnglish
      1·
      1 hour ago

      1. I haven’t modified anything since installing Proxmox. I exposed services using Pangolin and Cloudflare Tunnel. When the issue occurs I simply can’t access the applications over the internet. Ping fails.

      2. PBS is on the Dell Optiplex.

      3. I’m not using LXC. I have few more applications that will require HW acceleration in the vm.

      Thank you so much 😊