Building a High-Availability cluster with XCP-NG
For my network at home I am using two Supermicro RI1102H servers. Both servers have four GigabitEthernet adapters plus one out-of-band-management adapter.
Both servers are running XCP-NG Hypervisor, the open-source version of Citrix XEN server for virtualization.
My two Cisco C3750G-24TS-S switches are stacked, so I can build up a high-availability setup for my virtual environment.
For the servers I created two bond interfaces, one for “data” and the other for “storage” traffic.
On the Cisco switches I created two Port-Channels from the GigabitEthernet interfaces. The setup of the interfaces is illustrated below:
HA setup of XCP-NG Cluster for DATA
Supermicro Server | Cisco Switch
+------+ +---------+
| | | |
| eth0 | ---+ +--- | Gi1/0/1 |
| | | +-------+ +------+ | | |
+------+ | | | | | | +---------+
+--- | bond0 | --- | Po11 | ---+
+------+ | | | | | | +---------+
| | | +-------+ +------+ | | |
| eth1 | ---+ +--- | Gi2/0/1 |
| | | |
+------+ +---------+
HA setup of XCP-NG Cluster for STORAGE
Supermicro Server | Cisco Switch
+------+ +---------+
| | | |
| eth2 | ---+ +--- | Gi1/0/2 |
| | | +-------+ +------+ | | |
+------+ | | | | | | +---------+
+--- | bond1 | --- | Po21 | ---+
+------+ | | | | | | +---------+
| | | +-------+ +------+ | | |
| eth3 | ---+ +--- | Gi2/0/2 |
| | | |
+------+ +---------+
This means the traffic is divided between the “data” and “storage” traffic. By following the manual of XCP-NG I added the two servers as nodes into a pool as shown below:
So the HA is enabled with two nodes in the pool and the status is healthy.