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Last night we tried to add a new node to the cluster, it stuck on joining showing the below messages: can't create shared ssh key database '/etc/pve/priv/authorized_keys' (re)generate node files generate new node certificate unable to create directory '/etc/pve/priv' - Permission denied We...

Hi I have 15 nodes running proxmox VE 6 and CEPH. Recently we've been experiencing unexpected reboot in one or two nodes and logs showed that their corosync couldn't communicate with each other, therefore the node decided to fence itself and do a reboot automatically. Even though we had two...

Hi We've had these issues that one node caused the whole cluster nodes to get rebooted. We've been advised to upgrade to corosync 3 to get rid of multicasts and the issues it might bring it with it. We have successfully upgraded all 14 nodes to corosync 3. And now I've been started to upgrade...

Hi folks I have added a new node to my cluster today, then I realized the new node's network configuration might have an issue that it cannot communicate with the CEPH IP ranges, I have restarted the network service using "systemctl restart networking" after this, the disaster happened and I...

Hi folks We have a cluster consisting of 14 nodes. For some reason, I had to remove 3 of these nodes, reinstall Proxmox and bring them back into the cluster. It happened over time for different reasons. Now the issue is, none of my nodes can SSH to the nodes which have been re-installed. They...

Hi guys We have Proxmox and Ceph as our storage. I understand that by turning on discard on the VMs and doing fstrim we can reclaim the unused storage. But my question is why as soon as I create a VM with E.G 200GB storage from CEPH pool, Proxmox will deduct that 200GB from the CEPH POOL. Even...

I installed OS and Proxmox on ZFS raid1z on two USB sticks. Then I migrated them to two new SAS15K drive for more performance. It's been working for one year and had many maintenance reboots. but this time it doesn't boot after a reboot and shows: Trying to boot from USB DRIVE (C:\) checksum...

Hi guys I have a weird situtation tought you could help me I have a cluster of three nodes running proxmox + ceph. Ive installed the os (+ceph) on 2 x usb drive as zfs raid1, now I have high I/O wait on the CPU because the usbs are slow. I added 2 x SAS 15K and I’m thinking if its possible to...

We are a data center with 6 nodes of Proxmox VE and growing. We have customers that come to our website and order their VPS through our WHMCS which is using Proxmox VPS/Cloud module. We already have Cisco ASA Firewall which is handling our NATing and Vlans and everything is going smooth, but we...

I have updated all of my nodes to latest kernel and pve, since then I can no longer connect to any of the VM through VNC. I'm getting the attached error. Any help would be appreciated.

Hi guys Today I've found out that I need to update my nodes and reboot them. In order to prevent downtime in my production servers, I was live migrating VMs one by one to other nodes in my cluster. and migration problem occurred while migrating two of my VMs. They got rebooted and we...

I'm new to the whole zfs concept. We already have an old NetAPP Storage which is working fine and we are using it with iscsi. Due to ZFS benefits for replication and other stuffs, I was interested to setup zfs over iscsi with our Netapp. Is it possible ? because right now I don't have any idea...

Hi We are already using Proxmox VE 5.1 Clustering and we have many VMs. We've been using native proxmox LZO Backup, which is taking backups of all of our VMs every night, but we are kinda of worry since some of our VMs are growing to terabytes. I wanted to get some advice from you guys, is there...

we have a 3 nodes cluster which are correctly working with high availability, Last night, one of our nodes had an outage, so the HA-Manager migrated all VMs to another node as expected. But I noticed that all of our VMs get rebooted after migration, this caused some issue with VMs, since some of...

Hello I have some Virtual Machines which is currently in a different Node with KVM and Virtualizor (web-gui), and I want to move them to my newly created proxmox cluster. The old KVM and New Proxmox Cluster are using a shared iscsi storage with different LUNs. The old KVM is hosting VMs with...

I'm trying to run two node cluster for the first time. I'm using Proxmox latest version which is 5.1. Now I'm stuck at the fencing part. the guides says that I have to edit the following file but it does not exist on either of my nodes. nano /etc/default/redhat-cluster-pve there is no any...