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Hello, let´s say you have two sockets with six cores each (no HT). Your count of assigned cores exceeds the number of real cores. Is it nevertheless possible to enable NUMA for all the VMs? Or would it be better to chose for example two "important" VMs with e.g. 4 cores each and only enable...

Hello, I have two E56XX CPUs and asking myself what would be the best setup for these in a Multi-KVM environment. Should I enable Hyperthreading on the Node and NUMA on the KVMs? I got confused by this statement and hope that someone can recommend anything for best performance on an...

hi, thanks for your reply! and what if there is no time to change the MAC-address e.g. in case of a hardware-failure? I try to reconstruct what will happen if I put the disks into the other server without changing anything before (please correct me): I guess the system boots but what should be...

Hello, what could possibly go wrong if you take the disk with installed Proxmox to another, almost the same server? Would it be a problem if the CPU (model) and RAM (size) would be different but the rest is identical? What if the other server is the same? What about the NICs? They will...

I think what I did not yet understand is the role of hardware switch VLAN and OVS-VLAN and how the procedure of passing VLAN to the nodes is happening. I mean you can make the switch tag traffic with only one VLAN-Tag at once and pass that to another port within the same VLAN. That´s the...

hi again, am I wrong with my assumptions above?

maybe I am wrong but as consequence this means there can only be one Subnet for this network, e.g. 192.168.2.0/24? Problem is our example VMs have let´s say 3 NIC and all of them are in a different VLAN and Subnet. with this solution, is it possible to keep the OVS-VLANs (let´s say 5, 10 and...

what to do if VM 100 and VM 200 need to communicate over OVS-network if they are located on two different nodes? Can you please be a little more detailed?

Hello, can you recommend any switch for Ceph? Requirements: Minimum Bandwidth 10Gbit Connection type should work with Proxmox Thanks in advance! Regards, Afox

Example: You have 3 nodes in a clustered state. The first node contains VM 100 and VM 200 that are connected on VLAN 3 via OVS-Bridge. Now VM 200 moves to the second node. How do I keep them connected? Is it even possible? Regards, Afox

Hello, currently I have only one node with an OVS-Bridge running and a pretty complex VM-Networking-Setup with multiple VLANs connecting to that bridge. In the future I would like to setup a 3-Node-Cluster and am currently questioning myself, if it will be possible to spread the VMs on multiple...

Hello, Journal: If I set up a PCIe-SSD (for example Intel SSD DC P3700 400GB) for Journal, how many (SSD-)OSDs can/should it handle? Monitor: Does a Ceph-Monitor require also ultra fast SSDs? Would there be performance advantage if I use a PCIe-SSD instead of a "regular" Enterprise-SSD...

ok, I change my question: how do you connect your Ceph nodes? Can you give some advice for low latency hardware? Regards, Afox

thank you. I did all the steps as described and now have successfully enabled an internet-connection. On this way I stumbled on a DNS-issue as I was naming 10.10.10.1 as primary DNS-server. But this does not work as it seems. Do i have to use a public DNS-provider or is there any other solution...

Anyone can answer my questions?

hello, thanks for the hint. The node already has a vmbr0 with a static puplic IP and eth0 as bridge port. Can I add the masking snippet to the existing vmbr0? On the VM, do I have to chose "NAT Mode" on the NIC? Does the Proxmox Firewall also work for the NIC on the VM?

Hello, in my setup, some VMs (KVM) need Internet access. They don´t need to be reachable from the outside but must reach one point in the internet. I don´t want to give them a static public IP. What would be the solution for this? Is it possible to use the proxmox-firewall to regulate traffic...