How to ensure Disk replication uses 10 Gb network in XCP-ng XOSTOR cluster?

iamsumeshks

I am creating a 3-node XCP-ng cluster using XOSTOR for shared storage replication. The replication factor is 3. Each node has two network interfaces:

1 Gb management network (host management, pool communication, XOA access only)

Node1: 192.168.200.161
Node2: 192.168.200.162
Node3: 192.168.200.163

10 Gb storage network (intended exclusively for storage replication)

Node1: 192.168.212.11
Node2: 192.168.212.12
Node3: 192.168.212.13

How to ensure that all replication traffic goes to the 10G network. Node 2 is acting as master. linstor commands output is given below ( as an image ).

Screenshot from 2026-01-18 22-34-09.png

Pilow

@iamsumeshks as said on reddit, it seems that you are good to go
monitor your nics bandwidth in hosts stats to ensure it goes on the good pif.

PREFNIC is the one where DRBD works i guess

olivierlambert

Adding @Team-Storage for a quick review

ronan-a

@iamsumeshks You can confirm that using netstat -nlapute | grep :7.

Explanation: The DRBD ports are in the range 7000:8000. With this command, you should see the IPs of your PrefNic interface and not the default one, if everything is configured correctly.