cluster

I recently set up a cluster between two small PVE nodes in my homelab to provide failover on critical VMs. I was doing this in a bit of a sandbox for testing, and today I learned that if the failover node isn't turned on when you restart the primary node, none of the VMs on the primary node will...

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

I have a server (HPE Proliant ML350 Gen 9) with 2x E5-2667 v3 and 128GB ram. I want to build a cluster and see a HPE Proliant ML350 Gen 9 with 2x E5-2687W v3 and 256GB ram Can this be clustered together (i know i still need a 3d one). My current server has 2x Samsung PM893 2.5" 1920 GB SATA...

I have started to use SDN network and it's work with VMs. I have created a cluster and I've added a new node. In this node SDN network is pending "local sdn network configuration is not yet generated, please reload" and /etc/network/interfaces.d/ is empty. Do I need copy files manually? All...

Hi there. I'm having problems with online migration of VMs between two hosts in a cluster. Both have local storages (lvm thin). If I try to start the migration via the GUI or without options from the command line, I consistently get the following error: 2024-01-24 12:35:10 starting migration...

Hi Forum, i have setup a 2 node cluster configuration to keep the configuration in sync. As it seems, the added acme account from node1 was copied to node2. I was able to request a certificate for node1 without a problem, but on node2 i experience this behaviour: i can only select the...

Good afternoon! I am facing a challenge with a cluster hosted on OVH consisting of 5 servers, each with a public IP. The cluster is working fine with IPv6, but I have identified some vulnerabilities, such as public communication between servers, the absence of a private network, and direct...

There's a great deal of misleading piece of argument to be found in currently official PVE docs on QDevices [1] and then some conscious effort to take it even further. Under "Supported setups" [1] the following is advised (emphasis mine): It continues to provide an absurd piece of reasoning...

I will preface this by saying I am a total ProxMox/CEHP noob... I am good with Linux and I have been a VMware Admin/Engineer for the better part of 2 decades... I have looked through dozens of walk-thoughts and videos but I am still struggling with CEPH and I need some help. Goal: HA...

Hello I would like to share an information for other sysadmins who may face the same problem. I was unable to add a new node (pmox5) to my cluster from CLI, I always get error "500 Can't connect to <cluster_master_ip>:8006 (hostname verification failed)" : root@pmox5:/var/log# pvecm add...

Hello guys I just got a 2U 4 node box and I want to use this for my proxmox. In VMware there is no issue to have more than 3. I just wonder if this is the same here. I notice many YT all demo that into 3 nodes cluster. Thanks.

I have read the docs on HA top to bottom and back to top: https://pve.proxmox.com/wiki/High_Availability I can't get my head around the resource scheduling, because: "The cluster resource scheduler (CRS) mode controls how HA selects nodes for the recovery of a service as well as for migrations...

There is a cluster containing 24 servers A DDOS occurred on one of the nodes in the cluster, on port 80 of one of the machines, at the time of the DDOS attack the machine was turned off, waited for it to stop completely and transferred to another node, but on the original node a high LA of over...

Test scenario, 3 nodes - pve{3,4,5} - default PVE install (LVM, so no ZFS), 1 container set as HA, started on pve3. Figured out replication not possible without ZFS, alright, never mind, pve3 went down, HA attempted to restart CT on pve4, no volume available, still understood. Now when pve3...

Hi guys. I'm trying to remote migrate a VM off a ver. 8.x cluster to ver. 7.x - I presume above error is due to 8 to 7 being backward incompatible that way or... it can be done? What manual tinkering would it take if possible? many thanks, L.

Hi folks! I have a small homelab and I had 4 PVE nodes: pve0, pve1, pve2 and pve3 in 1 datacenter/cluster. I was looking to turn pve3 into PBS, so I simply disconnected the hardware and installed PBS there. When I login to GUI on pve0/pve1/pve2 I still can see pve3 and I'd like to get rid of...

So I have 3 servers that are all slightly different hardware if that matters. I installed them all with the same installation ISO. Run updates on each server. Joined all 3 servers to the cluster. However, server02 is facing some kind of issue. It shows as being part of the cluster (local or...

Hi, I configured 2 Proxmox 8.1.3 servers in one cluster and configure SDN zones as VXLAN. 1. No option turn on DHCP 2. When SNAT checked on subnet, no snat rules /etc/pve/sdn/zones.cfg vxlan: vxlan peers 10.33.3.20,10.33.3.21 ipam pve mtu 1450 nodes pve1,pve...

Hello Proxmox-Forum, we do have a storage error. We are running a 2-node cluster of the latest mail gateway version in HA mode. One of the nodes started to make trouble delivering mail to external domains (Microsoft-based and others). The error is reproducible. The error message on the node1 is...

Hi, I noticed I could not access the GUI for my master node, but could from any of the other ones nodes part of the cluster. I got pve ticket error trying to access. I updated the NTP as they were not in sync and now they are. Trying to restart pvedeamon and pveproxy they simply hang. I can see...