Hello everyone, I have a problem with my Proxmox Ceph Cluster: There are 4 machines in a Proxmox 4.4-87 Cluster. All of this machines have 2 CEPH OSDs. So in summary we have 8 OSDs. Ceph Pool config is like this: ceph osd dump | grep -i rbd pool 5 'rbd' replicated size 3 min_size 1 crush_ruleset 0 object_hash rjenkins pg_num 256 pgp_num 256 last_change 59469 flags hashpspool stripe_width 0 If one of the Proxmox nodes down, then all VMs are stucked. For example: I rebooted stor04 and all VMs are freezed / stucked. I stopped the VM on stor01 and tried to start the VM again. But nothing happened, until stor04 was back again... Do you have any suggestions for me? Normally it should not be a problem if one node is down. Especially I have replicated size 3. So all VM data should be present on 3 OSDs, which means on 2 hardware machines. But the cluster is not usable if one proxmox node is down. That´s not normal and I think there must be an error!