[PVE-User] Best practice for quorum device between data centers?

[Naumann, Thomas]

Hi at all,

we plan to build a inter-site proxmox cluster between two data centers.
In total there are 8 physical cluster nodes, 4 in each data center and
2 cisco routers per data center. The physical connections between the 4
routers are 8x optical fiber, each 40GB/s. Unfortunatly there is no
third independent location for a quorum device. 
So question is: what is the best practice to set up a quorum device for
such a production cluster?
-- 
Thomas Naumann