What is the default migration network ?

[MatijaTerzic]

In the datacenter options i see "Migration Settings" and I can choose the migration network.


I wonder what is the default network ? I presume it is the "cluster network (corosync)" used for setting up the cluster ...

 

[Chris]

Hi,
yes by default the cluster network is also used for migration. For further details, please see https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_guest_migration

 

[kre10]

Hello everyone,

I have a separate network segment for my Proxmox Backup Server within my Proxmox cluster. Although I've reviewed the documentation, I'm still uncertain about a few things. If I change the Migration Settings in the Datacenter from "Default" to "MyPBS Segment," could this impact the cluster's health in any way? Additionally, would I need to restart the nodes for this change to take effect, or will it apply without a reboot, allowing the next VM/Container synchronization to use this network segment? Also if this is to happen i suppose the corosync traffic would still go trough the Management network?

 

[Chris]

I have a separate network segment for my Proxmox Backup Server within my Proxmox cluster

How is this network segmented? Is this a segmentation using dedicated hardware or software defined segmentation using e.g. vlans?

If I change the Migration Settings in the Datacenter from "Default" to "MyPBS Segment," could this impact the cluster's health in any way?

The Migration network has nothing to do with the network used for backups to PBS. But sure, if your cluster network is not on a dedicated (physical) network, than any traffic going over the same network interface might increase the latency, and since corosync requires low latency the cluster might be affected.

Additionally, would I need to restart the nodes for this change to take effect, or will it apply without a reboot, allowing the next VM/Container synchronization to use this network segment?

Yes, this will have effect without a reboot, i assume your network configuration is already in place?

Also if this is to happen i suppose the corosync traffic would still go trough the Management network?

The change in migration network will not change the network used for corosync.

 

[kre10]

How is this network segmented? Is this a segmentation using dedicated hardware or software defined segmentation using e.g. vlans?

I have separate 10G NIC on every node and my PBS and they are in separate network and connected on different network switch than the Management interfaces. So i suppose switching to this segment for the migrations should be ok. Thank you for your answer !

 

[iwik]

When 3 node CEPH cluster is setup using full mesh - routed mode, is it possible to use this ceph network for migration as well?
In GUI I have to select interface, but actually there are two interfaces in this case, each to different node.