proxmox 5 clustering- what bandwith is required?

[krystofr]

I have a 10Mbs connection between servers. If I only use this for proxmox clustering purposes - will this be enough bandwith?

 

[dcsapak]

more important than bandwidth is latency, corosync requires latency < 2ms

 

[krystofr]

thank you @dcsapak We're planning a test using OVH vrack, they say it's 'OVH low latency' but no exact figures. Does anyone have any experience of the latency using vrack - within the same datacenter, and between data centres?

 

[Digitaldaz]

I've never tested latency in the same datacenter, it would have been very low. Between Strasbourg and Roubaix was about 10ms if I remember correctly.