cluster

  1. B

    Question about CEPH Topology

    Hi everyone, I would like some help regarding CEPH topology. I have the following environment: - 5x Servers (PVE01,02,03,04,05) - PVE 01,02, and 03 in one datacenter and PVE04 and 05 in another datacenter. - 6x Disks in each (3x HDD and 3x SSD) - All of the same capacity/model. I would like...
  2. D

    How to setup a HA schema using Proxmox over VPN

    Hello there! I'm trying to configure a Proxmox cluster using a VPN from 2 different geographic sites with a total of 3 nodes. I'd like to enable Ceph cluster using ODS disks but it looks like ceph Monitors and ODS configurations need to use a network in the same segment like 192.168.2.0/24 If...
  3. G

    Node reboots after other Node loses network

    Hello all, we are facing a strange issue. We have a two node Cluster plus QDevice on the latest PVE version with HA enabled on the VMs. We are currently in the process of testing the cluster. In order to test the fencing and HA recovery, we pulled the network from one of the two nodes (Node 1)...
  4. C

    Poor man's redundancy options

    Hi all, I set up a cluster with 2 nodes running Proxmox 8.2 + 1 qdevice. I have a VM that provides critical network services (DNS, proxy server, etc). This VM rarely changes, so live replication is not required. What I'm looking for: A way to have this VM shutdown, but available to start up...
  5. A

    Hardware Feedback - Proxmox Ceph Cluster (3-4 nodes)

    After going down many rabbit holes, I have finally come to the conclusion that the best solution (for my office) is a Proxmox cluster with 4 nodes. Depending on my final build, I might be able to only have 3. For now, I will use both proxmox backup and veeam to backup my VMs to a TrueNAS box...
  6. C

    [SOLVED] Neustart von Node im Cluster

    Moin, ich versuche gerade zu automatisieren, dass vor einem Neustart eines Nodes, die VMs, welche eine Replikation haben, zu ihren Replika Nodes migriert werden, damit die Dienste weiter laufen. Leider gelingt mir dies überhaupt nicht. Nutze zur Automatisierung Ansible und wollte, dass er...
  7. L

    Proxmox Cluster Network Communication

    Hi Proxmox-Community, [ Duplicate of https://forum.proxmox.com/threads/proxmox-cluster-network-communication.134758/ because it was in the wrong forum ] I've finally decided to upgrade from a single node to a cluster (both run on Hetzner servers). The goal would be that the public IPs of the...
  8. L

    Cluster replication

    Hey guys, I hope everyone is okay. I would like to know if it is possible to synchronize two different clusters with similar structures? The objective would be to create a datacenter for disaster recovery and/or contingencies in the event of loss of communication. it's possible?
  9. G

    [SOLVED] Three-nodes Ceph mesh network with bond and VLANs

    Hi everyone, I'm designing a new 3-node cluster. It's not the first cluster I make but it's the first with a full-mesh Ceph network (no dedicated switch) . Each node has a double 10G NIC and they're already physically connected each other. So I've been reading the docs and I think the best...
  10. B

    mounting CT problem

    Hi everyone, i'm a real beginner on proxmox and I have a problem with the creation of a CT. When I try to create one this message appear: mounting container failed TASK ERROR: unable to create CT 100 - cannot open directory //pool: No such file or directory I don't know why he try to open...
  11. C

    [SOLVED] Node 1 Down in Cluster Can't turn on VMs on others

    Hi Proxmox community, Still new to Proxmox but was wondering why it is that if I am adding multiple nodes into a cluster they start acting like a legitimate chain and that if one goes down the entire chain breaks. I am working on two nodes for testing different filesystems and virtual machine...
  12. G

    TASK ERROR: 500 Can't connect to X.X.X.X:8006

    Hello! I encountered a problem (in the attachment) when trying to create a cluster of two servers. Shows error 500 without additional information (in some threads there were similar problems, after the address there was still some description of the error), but mine is empty. I did everything...
  13. T

    [SOLVED] Delete a cluster

    Hi, I would like to know the correct way to delete a cluster ? I created a cluster for testing proposes, the cluster don't have any node (only itself), so now I would like to delete this cluster because the current IP address is only for test, the IP address for production environment will be...
  14. M

    Help!!! Local stoarge on cluster.

    I had some issues with my proxmox cluster and ended up starting from scratch. Im hoping you can help me with this dilemma. I have a 3 node cluster. One of them has Proxmox installed as a mirror on 2 SSD's the other two nodes only have single boot drives. I I installed proxmox on the server...
  15. T

    Total cluster failure in the lab

    Hey all, Currently testing CEPH and Proxmox HA on a multi datacenter configuration (with black fiber, so sub ms latency.) I tried to recreate the worst scenario possible : what if all nodes lose the corosync layer? This should never happen, but that's what the lab is for. I'm using Proxmox...
  16. M

    help! host Key Verification failed

    I have a 3 node cluster. I had to make some changes since one of the hosts had a drive fail, I reinstalled proxmox and killed the node using: pvecm delnode <node-id>, then readded the node, I then had some issues with the digital fingerprint, ran the command proxmox gave me on all remaining...
  17. E

    Change node in cluster's IP address PVE 7.4

    I had to migrate one of the nodes of my four node cluster to another data centre. The IP address had to change. Now I've googled how to change the IP address of the node that is currently down but I'm struggling to find a HOWTO or concrete information that doesn't overlap or contradict. Are...
  18. S

    Last node in cluster with live VM's

    I have a 3 node cluster, two have been evicted from the cluster leaving one with live VM's. What will happen to the live VM's if I remove the cluster altogether from the last node? Ceph is not being used.
  19. A

    hpe 1060 stroage with 2 hpe server setup

    Hello friends, I am very new to proxmox so i need some help to proceed, thanks in advance. i have 1 hpe 1060 storage and 2 hpe dl380 server the storage is directly connected to the server1 through fiber channel with two paths and same way server2 is connected to the same stroage what i wish...
  20. C

    [SOLVED] Node access

    Hi everybody, preparing for a production use of proxmox I'm testing it in a virtual environment with the configuration that I'll use after. I've virtualize two PVE and one PBS, create a cluster and used the PBS for the third vote for quorum using the guide found on the proxmox site. Everything...

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!