high availability

Hello Proxmox Community, I hope you’re all doing well. We’ve set up a High Availability (HA) Proxmox cluster with 10 nodes (and growing), and we’re planning to host 1000+ Windows 11 VMs within this cluster. Each VM is dedicated to a single user, who connects via RDP. On average, each RDP...

Verbatim copy of https://bugzilla.proxmox.com/show_bug.cgi?id=6773 Short: a SUSPENDED ZFS pool is not recognized although all VMs stall and services are practically down. Long: after upgrade to Trixie 13.1 (pve-manager/9.0.6/49c767b70aeb6648 (running kernel: 6.14.11-1-pve)) on 08 Sept. 2025...

Disclaimer: All this is done in a homelab (non-production) environment with a limited budget. TLDR: One central ssd zfs pool shared storage (distinct machine) added to proxmox (two other machines) used for VM app storage (not the VM OS itself). I also want PBS/deduplicated backups. How do I go...

I'm looking for some suggestions on how to redesign my PM cluster in my Home Lab. Here is the hardware I have available to me. 1). BIGNAS1 - Desktop PC - Ubuntu Server 22.04 Intel I7 12th Gen 64G RAM M.2 boot volume 10 x 10TB SATA (ZFS) 2). PM1 - HP DL380 G9 Proxmox 8.3.5...

Hello all, I am still learning about Proxmox and now I want to go to the HA clustering. I need your help in order to better understand the steps. I will start from the assumption that I will have a Proxmox "master" which run a VM Windows server 2019/2022 as DC and a second VM Windows server...

Hi, Has anyone successfully managed to replicate a Proxmox VE to a Cloud-based provider? The use case would be to have Proxmox running locally with the remote site being a DR site. The RTO / RPO are < 5 hours. The server hosts MS SQL Server and the amount of traffic is relativly low. I would...

TL ; DR - I don't care which host the High Availability VMs move to, as long as it doesn't exceed 4 VMs per host. Can this be done? Full Story - I am planning out a 4 host cluster (and 1 QDevice) of PVE with HA active using CEPH Storage and plan to run 8 Windows Server VMs across all hosts. I...

Good evening, Started my journey with Proxmox, networking,etc. I recently created a modded minecraft server on my main pc that I want to eventually run on Proxmox. I made my first node and the a second, from there I created a cluster because it seemed cool. Then I found out that "even" clusters...

Hallo Zusammen, Im Proxmox Cluster ist eingestellt dass VMs über HA migrieren sollen, wenn ein Knoten down ist. Dies hat allerdings bei einer Node mit vielen VMs zu einem unerwarteten Verhalten geführt. Die Migration ging sehr lange, und bei ca. 50-75% migrierten VMs ist der Knoten einfach...

I run a frigate CCTV system on my two node cluster with high availability enabled. Obviously a live migration cannot take place and it's not the main issue I have. Node Failure In the event of a node failure, everything works perfectly. The VM migrates from the first to the second node using...

Hi! found myself stuck on a weird situation. After a power failure during night, my nodes got affected. After restarting, a single virtual machine i was testing to learn about High Availability got separated from its disk. I'm using local storage on every node, so the environment is a 3 nodes...

I currently have two Mini PC with Proxmox in a cluster along with a raspberry Pi QDevice. Each server has a public 2.5gbe and a private 2.5gbe (interconnected between the servers on separate subnet). I am using ZFS on NVME on both servers. I am currently using HA w/ Replication. 1) Is...

When a VM is protected by HA and a poweroff runs inside the VM the VM is happily started again by the HA manager. Is it possible to tell the HA manager from within the VM (via qemu-guest-agent maybe) that the VM should stay powered off?

Hi, I'm trying to set up SAN storage using fiber cables. I have 5 servers running Proxmox, all of which are in a Proxmox Virtual Environment (PVE) cluster. Could you provide a detailed, step-by-step guide on how to set up SAN storage that will be accessible to all nodes in the cluster.

I'm currently managing a Proxmox cluster with three nodes configured for high availability (HA). I've observed some behaviors regarding LXC container management and failover mechanisms, and I'd appreciate any insights or clarifications you might offer. Preventing Duplicate LXC Instances: In our...

Hello, I would like to set up a Proxmox cluster at OVH. 3 Hosts with CEPH for HA. I was thinking of using the Advance 3 offer from OVH. I've mapped out a solution in my lab with 3 machines, each with a 1TB SSD. After configuring a 1TB CEPH datastore including the SSD for each host. Hot VM...

I'm interested in configuring high availability but I couldn't find information about how it works with different hardware configurations. I have a really beefy main server, and my other servers that would be in the 3 HA node aren't as powerful. 128 Cores 4 TB of RAM 44 Cores 1 TB of RAM 88...

I was wondering what would be the best course of action to setup HA for the Proxmox web portal? I am currently usin HAProxy but I noticed that when I go into a console of one of the VMs, it does not use the same server that I am on (connection is probably not sticky). I was thinking a better...

I have 2 networks in my server management and HA. I am creating a cluster which one should I use?

It's nowhere in the PVE official docs, but corosync does support last_man_standing and when used with HA it is suggested to also set wait_for_all. I found some previous threads, but not in relation to HA. Now I understand the official PVE endorsed way would be to just use a qdevice, but this...