Weird behaviour of cluster


Well-Known Member
Mar 11, 2020
Hello there,

after reinstalling my 2nd node of PVE cluster (2x server + 1x qdevice) I am having a weird behaviour:
Both server are being connected via a direct Infiniband connection, each with a dedicated IP address.

As soon as I reboot my 2nd server which I reinstalled the Infiniband NIC on server 1 goes down and won't come back up if the server 2 is back online.
I need to "ifup" it manually.

Also on server 1 the OS drive gets quickly to 100 % storage capacity. Only restarting the pve-cluster.service solves this issues.

If I do the same things on server 2 everything works without any problems.

Any idea why this is getting so weird?


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!