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I am having the same or a related problem, but my dmesg is empty, no errors about hangs or anything else. I narrowed it down to the following. Each PVE Node has a dedicated network card which is used only for Link 0 in the cluster. They are connected to a simple gigabit switch which only...

I am having the same issues with PBS and do not yet understand the dirty-bitmap topic. Let me ask a more specific question: How should I do the backups in order to have (a) consistend backups and (b) make use of the dirty-bitmap feature. If I configure the backup mode to be "Stop", will this...

Thx for the answers. PBS and `qm remote-migrate` seem to be very reasoanable options.

I don't know how this tool would help me. How does it connect different clusters to each other?

I want to use Proxmox at two different locations. My question is how can I connect them to each other? We already have small PVE cluster at our office. This is ideal for development and testing but not suited to serve the public (internet connection to slow, not enough IPs, etc.). The plan is...

@krikey thx for your work. I tried your code and it works nice for smaller CT/VMs. But for lager VMs its waaay to slow (on my machine). I came up with a different approach for VMs. a) VMs are backed up in fixed-sized chunks of 4 MiB. (According to...

I am having some problems with one of my VMs. The dmesg is full of "Out of puff!" errors while the host never got close to running out of memory. Any idea why this happens? [Mi Mär 15 01:10:59 2023] kworker/2:0: page allocation failure: order:0...

I have been using PVE for some years and I want to also use PBS now. It seems like I don't quite get some of the concepts. My setup is: one PVE cluster and one PBS on a separate physical machine. The PBS has 1 SSD as boot drive (with zfs) and a raid-z2 array of 6 HDDs for storage (called...

I am using netdata to monitor my PVE hosts. On some of them I am getting inbound_packets_dropped_ratio warnings because 2 % of packets are dropped. Any idea why? Here is my setup: Each host has 2 NICs, first is mapped to vmbr0, second to vmbr1. vmbr1 is only used for PVE traffic. It is...

My understanding of the pstate driver is that the frequency scaling is no longer done by an algorithm within the kernel but that the cpu determines how fast it should go. (but I might be wrong). Therefore you should only be able to force the driver if the cpu supports it. If it does, I would...

Oh, I did not know about that 80% limit, there is also no hint in the documentation. But it all makes sense now. After rebooting the full 32 GB are available and it gets shrunken down to about 14 GB. At that point the host has exactly 80 % RAM free. How can I influence this? The server has...

agent: 1 balloon: 1024 boot: cdn bootdisk: scsi1 cores: 2 cpu: host ide2: none,media=cdrom memory: 32768 name: testvm net0: virtio=52:54:00:19:f0:94,bridge=vmbr0,firewall=1,tag=19 numa: 1 onboot: 1 ostype: l26 protection: 1 scsi1: local-zfs:vm-403-disk-0,discard=on,size=18G scsihw...

It seems to me that the problem is VLAN related. I used the same NIC for quite some time without problems. The problems started then I added VLANs to my setup. But this might be a coincidence, since I also did a PVE update at the same time. Anyways, thanks for your help. Since a used server...

I tried this, and any other suggestion I could find, but the problems remained. They were less frequent with the tso gso workaround, but they still happened. Last week I gave up and switched it for a different NIC (Intel E43709-004 - Based on the Intel 82576 Chipset) the problems are gone.

This is probably not the cause for the driver selection. I have an Intel(R) Core(TM) i5-8400 CPU with Proxmox 7 and it also shows unknown in uname but uses pstate # uname -srvmpi Linux 5.13.19-4-pve #1 SMP PVE 5.13.19-9 (Mon, 07 Feb 2022 11:01:14 +0100) x86_64 unknown unknown # cpufreq-info...

I could not find a reason why it would not use p-state. It might somehow detect the cpu as incompatible, but it should be compatible. You could try to use grub-flags to enable it manually. For testing purposes you can change the flags at boot time from within the grub menu. They are gone after...

Sorry, I misunderstood your question. I guess the default depends on the kernel config used to build the kernel. One could override this default with boot flags in grub, but as far as I can see, PVE does not do this. The PVE kernel is maintained here: https://github.com/proxmox/pve-kernel...

You can use cpufreq-info to see which driver is currently used.

You might be missing something here. You have to distinguish between the intel_cpufreq driver and the intel_pstate driver. As seen below, you seem to use intel_cpufreq. For this driver, your claim is valid. This governor actually sets the CPU to the lowest frequency. I was talking about the...

Ich habe ein ähnliches Problem. Einer der Server im Cluster ist tot (Hardware-Fehler). Ich will den jetzt ersetzen, dabei würde ich gerne die IP und den Hostname des alten Servers verwenden. Wie gehe ich da am besten vor? Es müssen keine Daten, außer der IP, vom alten Server übernommen werden...