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Does it also happen with other OSes? What does memtest say?

data pve twi-aotzD- 147.62g 100.00 4.93 your Storage is full.

Ja.

Schonmal nen neuen Browser versucht?

>2 x 2To HDD SATA 7200rpm for Ceph OSD Your ceph will be queit slow. Try to add more (and faster) OSDs.

Patch your old nodes. There was a change on how the free/used ceph space is displayed.

I have no Idea what you are talking about. Maybe take some screenshots.

There is no "primary" node. What do you mean you have "rexed" proxmox? Reinstalled? If so: Remove the old node from the cluster and add the new one. Just follow the guide: https://pve.proxmox.com/wiki/Cluster_Manager#_remove_a_cluster_node

Work? Yes. The question is: How long :) SD Cards are not known to be very write-friendly and PVE _will_ kill normal SD Cards in a matter of months (or even weeks in a cluster).* I don't know if there are enterprise-grade SD-cards but the SanDisk Industrial cards may be a good start. * I have a...

On the Host n2 the OSDs are at 90%: 4 hdd 0.90439 1.00000 926G 825G 100G 89.12 1.69 110 5 hdd 0.90439 1.00000 926G 823G 102G 88.96 1.69 109 Ceph can't balance anymore. Add an OSD to node n2.

How are the OSDs spread over servers?

Degraded data redundancy (low space): 82 pgs backfill_toofull Mehr/größere OSDs würde ich sagen.

Also the two qnaps won't be able to do HA even if you have 3PVE servers. You'd need to ensure that the data is always in sync which is (afaik) not possible with qnap.

Yes it does - it seems that you don't know what LVM is. You need to know this if you want to find the location of the VM image.

Correct. But why do you want to use PVE 3.3? It's way too old. You should use 5.X

Raid0. No seriously. What do you need?

Nein.

Backing up to NFS on Synology works. What did you try and where did you fail? /E: Of course you will need an VPN connection from your host to your NAS

Hi, thanks for your time. The Raid6 has been faster before but after extensive testing it seems that it is indeed the bottleneck. Sorry for taking your time and thanks for your input.

Hi, the host is only at 45% IO (maximum value btw), the VM is always at 100%. This is why I'm a little dumbfolded. I know that Raid6 is not very fast but it should be way faster than 40-50MB/s?! Thanks for the answer, but changing to Raid10 is not possible right now (the hardware will be phased...