deleting VM on one server (Two node Cluster with DRBD without quorum and without fenc

[crazynotion]

Hi

I’m new to Linux and Proxmox and DRBD .
For testing purpose i installed proxmox with drbd and managed to run a VM with Ubuntu 14.10
everything worked fine

• killing one node and migrating the VM per hand
• life migration
• offline migration

Then i tried to do a life migration while updating to Ubuntu 15 the problem now is
that the node(node2) where i started the update has Ubuntu 15 and the node(node1) to where i migrated the VM
runs 14.
Now the migration is possible but

• node2 will start Ubuntu 15
• node1 will start Ubuntu 14

Now my question would be how do i update node1 without updating true the VM itself
or how do i delete Ubuntu 14 on node1

thanks

Then i tried to do a life migration while updating to Ubuntu 15 the problem now is
that the node(node2) where i started the update has Ubuntu 15 and the node(node1) to where i migraded the VM
runs 14.
Now the migration is possible but

• node2 will start Ubuntu 15
• node1 will start Ubuntu 14

Now my question would be how do i update node1 wihtout updating true the VM itself
or how do i delete Ubuntu 14 on node1

thanks

 

[t.lamprecht]

Re: deleting VM on one server (Two node Cluster with DRBD without quorum and without

Sounds like your DRBD got a "split brain", a problem you can get with any even numbers of nodes, to prevent this use an odd number of nodes, it's also more secure for the PVE cluster.

Maybe this can help you:
https://pve.proxmox.com/wiki/DRBD#Recovery_from_communication_failure