Proxmox Two Node Cluster Replication

[Dexter23]

Hi all
This is my scenario
1st Server Dell
2nd Server Microserver
this is the vm i want to install:
1(firewall opnsense)
2(windows server)
3(windows Server)
4(truenas with 2 hdd passtrough for pool storage)
5(samba dc)

I want two replicate the vm on the 1st server to the 2nd server, my question is how many nic i need on both nodes?
1(lan)
2(wan)
3(cluster)
4(for zfs replication)

I Wait your reply
Thanks

 

[Dunuin]

First, you need 3 hosts for a custer. Otherwise your remaining node would have no quorum and also would stop working, in case any one of the two nodes would go down. You at least need to run a qdevice on a small third node (thin-client/RaspberryPi,VM on NAS, ...) as a hird voter: https://pve.proxmox.com/wiki/Cluster_Manager#_corosync_external_vote_support

I want two replicate the vm on the 1st server to the 2nd server, my question is how many nic i need on both nodes?
1(lan)
2(wan)
3(cluster)
4(for zfs replication)

With a managed switch and tagged VLANs it would even "run" with a single NIC. But yes, dedicated NICs for WAN, LAN, corosync and ZFS replication would be a good idea. That way you can ensure that the OPNsense can route the full Gbit, that corosync always got the required very low latency and that replication won't slow down your entire network.

 

[Dexter23]

Ok Thanks