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  • fiona
    fiona replied to the thread [SOLVED] Life Migration with local storage: 3-9 seconds downtime (qemu reports 100ms ...).
    Hi, if you use local storage, then the downtime will be longer. The downtime that is currently logged in the task log is only for the RAM/VM state migration itself. But the VM can only be resumed after the storage migration is fully finished...
  • S
    stann replied to the thread Random fencing.
    @j.theisen We're going to add the Corosync link today, and change MTU. Shall just lower MTU on Proxmox GUI ? And also on the VPN we don't have any logs that might end to a fencing, we are uncertain if the VPN drops or not.
  • A
    anna_pve_berlin replied to the thread Additional Network configuration.
    ggoller’s point is the key one. To avoid guessing, check the real interface name on the PVE host with `ip -br link` or `ip -d link show`. Use the real name that Proxmox shows/uses, not the `enx...` alternative name, in the bridge port field...
  • A
    atomic-dz replied to the thread noVNC/SPICE console disconnects with "SSL routines::record layer failure" on PVE 9.2.3 / OpenSSL 3.5.6.
    Bug 7761 Submitted
  • C
    Chicken76 replied to the thread Proxmox Backup Server 4.2 released!.
    I just upgraded my PBS from 3.4 to 4.2 and pbs3to4 still gives me a warning after rebooting: I assume this is not really a problem, just the script was written before kernel 7.0 was an option?
    • Screenshot_2026-06-30_12-04-21.png
  • S
    stann replied to the thread Random fencing.
    In case the VPN itself is stable, how would you recommend configuring this QoS rule for Corosync?
  • S
    stann reacted to j.theisen's post in the thread Random fencing with Like Like.
    Well this depends on the underlying internet connection and the reason the VPN connection drops in the first place (if it even drops at all). In case there seems to be no outage of the VPN, you might want to consider applying QoS rules to the...
  • J
    j.theisen replied to the thread Random fencing.
    Well this depends on the underlying internet connection and the reason the VPN connection drops in the first place (if it even drops at all). In case there seems to be no outage of the VPN, you might want to consider applying QoS rules to the...
  • G
    g.fiore replied to the thread LVM-thin vs ZFS for local VM storage on a single-node PVE — pros/cons in 2026?.
    Spent the weekend benchmarking both on the actual hardware before committing. Sharing the results. Setup: 4x 2TB Samsung PM9A3 (enterprise NVMe, PLP), AMD EPYC, 128GB RAM. LVM-thin on mdadm RAID10: - Sequential read: ~12 GB/s - Sequential...
  • S
    stann replied to the thread Random fencing.
    To what values should we lower it? I need to be careful because this VPN also carries regular office traffic.
  • A
    atomic-dz replied to the thread noVNC/SPICE console disconnects with "SSL routines::record layer failure" on PVE 9.2.3 / OpenSSL 3.5.6.
    Additional findings and workaround After further testing, I can confirm that the SSL routines::record layer failure error and the subsequent noVNC console disconnects are triggered only by direct external TLS connections to pveproxy. The bug...
  • J
    j.theisen replied to the thread Random fencing.
    Ok this seems a little high for this application, might also ask your network admin to lower the interval.
  • S
    stann replied to the thread Random fencing.
    DPD retry count : 3 DPD retry interval : 20s Ok I will ask my network administrator to check the VPN configuration. Thanks.
  • J
    j.theisen replied to the thread Random fencing.
    This seems to be the correct setting. What are the retry counts and intervals set to? This is correct and i don't argue with that decision. However the guide also states that it has to be ensured "that all Corosync links and the Ceph (public)...
  • S
    stann replied to the thread Random fencing.
    Dead Peer Detection is set to "On Demand". Regarding your last point, we are completely aware that this is not the ideal setup. However, we absolutely need a Ceph Monitor in this 3rd datacenter. And the guide [1] says : "The use of a Proxmox VE...
  • J
    j.theisen replied to the thread Random fencing.
    Is Dead Peer Detection also enabled? Since the communication outage seems to have lasted over a minute, it might be a good idea to raise the check frequency there: Jun 26 08:56:15 NODE-5-TIE-BREAKER corosync[995]: [QUORUM] Sync joined[4]: 1 2 3...
  • O
    Onslow replied to the thread Sync 'older' Backups.
    @Chris Haven't you meant other URL than 172.... :)
  • O
    Onslow reacted to Chris's post in the thread Sync 'older' Backups with Like Like.
    You could perform the full sync to a different namespace first, then use the move feature introduced in PBS 4.2 to merge contents. See https://pbs.proxmox.com/docs/storage.html#storage-move-namespaces-groups Edit: fixed link
  • J
    j.theisen replied to the thread [SOLVED] Datacenter firewall blocks even with rules.
    Hi @unsichtbarre thanks for posting on the forum! I assume you want this rule to allow your management network access to the Web GUI of Proxmox VE correct? In this case your rule needs to specify the destination port (dport) instead of the...
  • J
    j.theisen replied to the thread Random crashes without logs - kdump doesn't appear to be working.
    Hi @skybolt_1 thanks for posting on the forum! Can you please post the content of the following files: /etc/default/grub.d/kdump-tools.cfg /etc/default/kdump-tools /proc/cmdline Did you update GRUB using proxmox-boot-tool refresh after...
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