high avaibility

BACKGROUND I work for a small business that provides a 24 hour service on our servers and requires as close to 100% uptime as possible. Our old IT company sold us 2 identical Dell R420 servers several years ago with a single 6 core processor, 4x 3.5" 600GB 10K SAS HDD in RAID10, and 16GB RAM and...

Hi, looking into proxmox HA at the moment - our situation is we have a few critical VM's running across multiple clustered nodes. We'd like to be able to have HA on these so that if one of the VM's dies, it is brought online on another node automatically. Is that feasible or is it only if the...

Ich bräuchte einma einen Rat aus der Community: Ich baue in meinem Unternehmen einen zwei Node Cluster mit (wahrscheinlich) einem Q-Device auf. Meine Frage wäre, ob es möglich ist auf beiden Nodes eine gleiche Menge von VMs zu verteilen und dann trotzdem noch Ausfallsicherheit und die...

Something went terribly wrong last night. Apparently one host lost connectivity (because of backup) and HA decided to move the LXC client to the first host on DataCenter list (which does not have same storage.) Entire LXC client just went poof in the air. Oct 13 00:00:17 TASK ERROR: could not...

im currently using hyper v and have some clusters setup. ive only just started tinkering with proxmox on a single server, and currently have 3 identical servers, and 2 others that are different. if i moved all servers over to proxmox would they all work together without any issues or would they...

First of all, you can recognise watchdog induced reboots of your node from the end of last boot's log containing entries such as: watchdog-mux: Client watchdog expired - disable watchdog updates kernel: watchdog: watchdog0: watchdog did not stop! You should probably start with reading the...

I am building out a 3 node cluster for home lab use. Each node has (2) 2.5 gb nics which currently plug into 1 gb ports on my switch, (2) SFP+ ports, and (2) 40 gb ports. I currently have the 40 gb configured in a mesh network. I would like to separate everything out to avoid network...

Hi vGPU is getting more and more important. Its nice if it works but what when it comes to an HA situation and the main server fails? The essential functions should be available with live-migration. Please vote for my requests in bugzilla or feel free to write other solutions / ideas: 
 For as...

Hello! My goal is to have HA configured in a way where when a node goes down, the VM's get migrated to any other node that is available. When I set all nodes as the same priority the VM's go into a frozen state and do not get migrated to another node. When I have a node with a higher priority...

I love Proxmox's ability to make it super easy to set up a three-node HA cluster with Ceph. I like to use it for my VMs and SQL databases that require a lot of IOPS. This way, if one of the nodes goes down, my SQL DB VM can be quickly redeployed to another node. That way, if one of the nodes...

Heey I am a newbie to the community, so sorry if it sounds stupid, I have set up an HA proxmox cluster with three zimaboards on my local network that run a couple of VM's in failover mode. Now, the problem is this. When my house lits fire the whole system will collapse. Or when my router or...

Hello, Recently I created my first 3 node proxmox cluster. And I started experimenting. I have two questions that bother me: I've created replication jobs every 2 hours for one VM. Now if I shutdown proxmox node manually on which VM is running let's say 15 minutes before next sync, will the...

Hey everyone, after reading a lot and coming to the conclusion... Running a 2 node cluster productively with replicated storage (sync) is not feasible. I have the possibility to build a hardware setup with 3 nodes as follows, whereby these are really the *maximum* possible hardware capacities...

Hello everybody, I woul'd like to design an Hyperconverged infrastructure with 3 proxmox linked by DELL Fibre Switch S4112F in one hand and one DELL SAN ME4024 in other hand We have configure LVM on the the cluster's datastore. We have problème, only HA is available but, we have to have a...

Currently, I have 3 server setups and each server has 1 SDD for Ceph storage. If 2 out of 3 servers do not work the system is not operational for write. What will happen if I add one more server with 1SSD in the pool? Will my system can handle 2 server failure?

Hello, We're preparing to move to Proxmox from VMWare. As part of our high availability testing, I thought it would be a good idea to install and check out the HA Simulator. I've reviewed and followed he instructions in section 15.5 but am getting GTK errors. I had assumed the Proxmox PVE had...

Currently, I have 1 disk in each server(total 3) used for Ceph shared storage. I noticed that if 2 out of 3 disks are not working then complete ceph will also stop working. I am not sure if the same (n/2 +1) formula works here as well. Why It is concerning is because we are using CephFS as...

Hi, I have a small cluster with 3 nodes, configured for HA. Most of my data is on the same network as the cluster, on a Drobo connected with thunderbolt to a Mac, running Catalina. (Yeah, ewwww I know) I was planning on moving my services off the Mac to begin with, over to the cluster, and I...

Hello, I would like to set up a Proxmox HA cluster with 2 nodes. I can't use Ceph with only 2 nodes, so I wanted to try replication. With replication, you can set the container to be replicated every 15 minutes, for example. But then I asked myself a question: If my container is running on...

Hi, I've configured HA and replication, but when I actually reboot a server, the failover fails stating that the volume already exists at the target node. Some helpful info: I have 8x nodes my goal is to have replications every 15m when there's an event that causes a failover, either a quick...