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Can you see the corosync logs and see if you can ping other nodes and did you notice there is change in ringID? so it seems the configuration in /etc/corosync/corosync.conf is not same as /etc/pve/corosycn.conf

Right now all nodes are showing clustering ok, so seems like no issue with Corosync. Now just quickly check for 2 things cat /etc/hostname cat /etc/hosts of all nodes

failed command: WRITE FPDMA QUEUED means most likely RAID controller issue, rebooting will reset the controller, you can check the controller log if possible to see any issue reported by controller

can you please share the output of the following pveceph lspools to confirm you have pool with 3 copies or 2 copies

Try to use CPU model as "MAX" and see inside VM with lscpu what all flags are visible, do this for all nodes and then put common flags

check ceph monitor logs to see any OSD is slow or blacklisted due to higher latency and make sure all nodes are NTP sync

1. Power on all the 3 nodes and share the output from all nodes pvecm status and pveversion -v commands 2. Also make sure you have port 5401-5404 UDP allowed between nodes. This port is used by corosync and 3. if you are not on corosync3, ie you are on older version of proxmox. Make sure...

change machine to pc-i440fx-5.1 and try again Might be issue with machine type

I guess thats already in roadmap. PVEclient and Cross Cluster Mechanisms

You meant anti-affinity rules. Currently we configure this by creating 2 groups. Each with different nodes and assign VM of similar category to different group. Automatic balancing of VM based on resource pool or group of VM through straight forward method would be an ideal scenario Also a...

@Alwin Any leads?

Can you post your vm config and hardware config. post the output of following commands 1. cat /etc/pve/qemu-server/<vmid>.conf 2. lscpu 3. pveversion -v

You are using boot ISO, it does not have any packages. Use the DVD ISO from the same link with size > 9GB

I have created a HA group consisting of 3 nodes each with equal priority According to documentation List of cluster node members, where a priority can be given to each node. A resource bound to a group will run on the available nodes with the highest priority. If there are more nodes in the...

Yes Ceph indeed is very great, the new version integrated with proxmox (octopus) is indeed have better performance, better features I am using with bucket level rack and bucket level pod. The performance is phenomenal

if purpose is only for testing, ceph can be tuned to run on single node, but it will not fetch out anything. The derivation of ceph performance is based on attributing network latency, OSD_SLOWNESS so if it is single node setup where replication is running with OSD on same server. You will not...

I need to allow user to access the console of VM. I have used VM.Console permission but it is not showing VM after user logins to proxmox. However if I add VM.audit automatically it is possible. Why VM.Audit Permission needs to be added. Can anyone explain what is the least permission required...

To test it better set numa flag in cpu and increase memory to more than 50% of total memory to a vm. In that case memory access over upi interconnected will be visible and performance benchmark can be done. Use fio or similar benchmark tool

To understand it better, what is the memory configured for the VM and what is total RAM in server. As this question has more relevance there

I have made a VM in Proxmox with different kernel version, took a backup and restored in different version