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Sorry to bump this old thread. We also notice this issue recently on octopus. It works normally before using nautilus. Rados bench on host or from ceph mds show ok value (read higher than write), but inside vm seq read tops at 80MB/s. Maybe its related, during test we notice iowait raised to 50.

Sorry my question wasnt clear. On normal proxmox instalation management network is same with management network. Your answer already clarify this. Now i need to find documentation on how to move cluster network to dedicated network with minimal downtime. Thank you very much.

We tested proxmox cluster of 3 server where management interface is not lacp bonded interface. Everything seems to work. But I read in wiki https://pve.proxmox.com/wiki/Network_Configuration that lacp not supported for management interface. Here whats the wiki wrote: ... If your switch support...

restarting corosync resolve CS_ERR_NOT_EXIST. But omping result still not stable. Sometime it shows loss 1% sometime can be as high as 19%. I am still waiting on disconnected issue as it happen quite randomly.

We have 8 node proxmox 5.2.1 cluster. We experience cluster disconnection when we clone vm. We also have fail to connect to storage. Many thread suggest to check at multicast isu. We followed https://pve.proxmox.com/wiki/Multicast_notes#Linux:_Enabling_Multicast_querier_on_bridges and we have...

Sorry i didnt check through. Apparently virtualization was disabled in bios setting.

New installation using Proxmox 5.2.1 on Xeon Silver 4110. The error similar to thread https://forum.proxmox.com/threads/pve-5-1-kvm-broken-on-old-cpus.37666/ but I am using newer processor. On another installation we have Proxmox 5.1 on xeon silver 4110, kvm is working fine. Some information...

thanks tom, i'll give it a try.

We installed proxmox 5.1 from 2nd ISO into 3 supermicro sys6029wtr (X11dd motherboard, intel silve 4100 scalable). Out of 3 system, 1 system suffered from frequent freeze (like every 4-10 hours), others is like every 1-2 days. System was freezing with or without load. Even, on our first...

if we use 10G network we still to separate physical interface?

We tried ceph backend storage on our cluster lab. So far we like reliability of it. We are prepared to move into production. We need more information about resource needs on mixing ceph with VM. Any documentation/guide on limiting CPU, Memory, network for ceph process in order to minimize VM...