Recent content by Joe Botha

  1. DFTBA

  2. Advice for memory optimisation / overcommit

    Hi I imagine some VPS hosting companies have ways to sell more memory than their servers actually have. How do they do this? Any advice for making the most of your server memory? A few ideas so far: * Use containers rather than VMs - pretty obvious * Make sure KSM (Kernel Samepage Merging) is...
  3. Mellanox NIC ethtool SFP signal levels

    Hi Using PVE kernel 5.13.19-6-pve and the latest firmware + drivers for Mellanox Dx6 NIC, I can't seem to get signal levels from an SFP using ethtool ethtool -m enp1s0f1 Laser output power : 0.0000 mW / -inf dBm Receiver signal OMA : 0.0000 mW /...
  4. Persistent PCI addresses

    Hi Yeah, I think that's by design, I've read that Microsoft Windows requires this to be static from boot to boot. I've read a bit about how libvirt does this with their XML config file system. I'm wondering how Proxmox does this? Where is this 'database' kept?
  5. Persistent PCI addresses

    host1 proxmox-ve: 7.1-1 (running kernel: 5.13.19-3-pve) pve-manager: 7.1-10 (running version: 7.1-10/6ddebafe) host2 proxmox-ve: 6.4-1 (running kernel: 5.4.162-1-pve) pve-manager: 6.4-13 (running version: 6.4-13/9f411e79) attached the showcmd output as files
  6. Persistent PCI addresses

    Maybe also useful, the layout of the PCI addresses on the two hosts. I can't spot any logic about how host addresses get mapped to guest addresses - do you know?
  7. Persistent PCI addresses

    Two screenshots, host at the top with qm config output, bottom, the VM running on the host, with lspci output How does the VM get the order of the PCI addresses of the ports? Is there nothing inside the VM which stores the state of the PCI address layout?
  8. Persistent PCI addresses

    Hi, yes the PCI addresses in the guest - and how they get mapped to PCI addresses in the host. For example: Intel x710 NIC has 4 ports - each gets a PCI address in the host and each get mapped to PCI address in the guest. Now you go and add SR-IOV interfaces on the host, which introduces new...
  9. Persistent PCI addresses

    Hi. Where can I learn more about how Proxmox keeps PCI addresses stable between reboots? I believe Libvirt keeps PCI device addressing stable by keeping details in their XML config files. This is also know as 'Stable machine ABIs'. I've seen some forum posts about using the Proxmox args...
  10. Mellanox Connect-x 6 Dx VirtIO and vDPA

    Hi I'm wondering if Proxmox VE supports or will soon support hardware virtIO acceleration? Mellanox Connect-x 6 Dx NIC supports this feature. Any docs I can go read about how to get this working?
  11. Debian 10

    I'd like to start building a new Proxmox server based on Debian 10. Hoping to deploy as soon as Proxmox is released for Debian 10. Are there any ideas for when Proxmox for Debian 10 will be ready for testing? Mid 2019 maybe? Is it a good idea to upgrade the server to Buster and install Proxmox...


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