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So i have proxmox 5.4, and pve-qemu-kvm/now 2.12.1-3 amd64 . Just had 2 vms crash when trying to open the console. So from what i understand this is fixed in pve-qemu-kvm 3.0.1 ? And this is only in the pvetest repo ? Has anyone tried it ?!

I will try this out as soon as i have some spare time, and get back here.

Well this is not clear to me. If i add another node to the cluster, i can then make a ha group consisting of the "real" nodes right ?! Then i go and replicate the disks from node a to node b (the real nodes). If nodeA fails, the will get restarted on nodeB ?

This will "fix" just the votes problem (maybe i can have a vm with proxmox on another server). But what about the fact that i dont have a shared storage?

So i have 2 servers, with proxmox 5.4 installed, with zfs disks, and configured in a cluster. They are identical. One very important thing is that i have no shared storage. So the vms run locally (as is, they have local disks.... so no live migration). So i have some vms on node1. From what i...

Yeah, it kind of hit me after i posted the thread. The vm would actually need to acces the same network of the ceph cluster, and i dont think this would be safe. Anyone that would have access to this vm would have access to the ceph network.

So i have been doing a lot of tests with proxmox and ceph. Im now thinking about a certain case, is it posible to use the ceph pools created inside a vm ? Or maybe a ceph fs ? How should i go about it withought breaking everything :) ?

So in a sense i have managed to get everything working again, in a sense (more about that in a bit). So my problem was that after restart the mon on the 2 failed nodes (that i have reinstalled) had isues with their service. So the mon service on node 2 and 3 was not starting. But, if i ran...

So i managed to get everything up from the only remaining node by using: http://docs.ceph.com/docs/luminous/rados/operations/add-or-rm-mons/#removing-monitors and this for the osds: https://ceph.com/planet/recovering-from-a-complete-node-failure/ So everything was running : the proxmox cluster...

So it seems that the mon was running. So i ran : systemctl status ceph-mon@hp1-s1.service Not i made the export of the monmap.. Il continue and get back here :)

So i have managed to recover a cluster that had one node dead. I mean i reinstalled the dead node and managed to re-add it to the proxmox cluster, and ceph cluster, using that link. But i cannot seem to manage it with ony one node alive. So im trying to export the mon map, and i get this ...

I thought i would get this answer :). So i guess i will go the way of making sure the nodes/hosts/osds are alive and well :).

Yup, thanks for the corrections.

So how would i do that ?! So i modified /etc/ceph/ceph.config so that only the one mon and host is defined. I tried them "ceph status" but it does not do anything .... it just hangs. Could i use maybe rbd or rados directly ?

So i have followed the ceph config tutorial. I have made a cluster of 3 servers (identical), with a full mesh network. Everything is ok. If one node\server goes down everything is still ok. I can still use the cluster, in a degraded state. But if only one node is up i cannot acces ceph anymore...

So after some investigation, and some a really helpful person named IcePic over at the ceph irc channel i think i have some answers. So Ceph works with block devices. Everything goes to these block devices . CephFS only exists to have the contents of these block devices "exposed" as a posix...

This one can be close, as i oppened another thread, only with my "problems" related to how to use these pools and fs.

So im trying to configure a proxmox cluster with ceph. So from what i can see i can make a pool directly and use it (as in add it to the cluster storage as RBD) In order to create a CephFS storage in proxmox i need to create 2 sepparate ceph pools and then create the cephfs specifying the pool...

So yeah. Im kind of lost. So i deleted everything.... so no pools. I created the pools and fs manually with : I then went to Storage in Proxmox Cluster and : - added both clusterfs_data and clusterfs_metadata with RBD(PVE) storage type - added clusterfs usint the clusterfs storage type RBD...

So something does not fit. So when i get to the point of creating a CephFS i already have a pool created. I cannot use that from what i can see. I can create new pools, and the create the fs with these commands: ceph osd pool create cephfs_data <pg_num> ceph osd pool create cephfs_metadata...