dedicated network for live migration

[draak]

Hello,

Could you please advise on setting up a dedicated network for live migration?

I've got two networks, client and storage. I could possibly use storage network for that, but I'd prefer having both servers directly interconnected by a cross-over cable.

Thank you.

 

[draak]

Hello,

Is there any way that this can be achieved? Because it is not very elegant or efficient to do migrations over the production network.

Thanks!

 

[spirit]

Hello,

Is there any way that this can be achieved? Because it is not very elegant or efficient to do migrations over the production network.

Thanks!

Hi, it's not possible for now, as proxmox use host default ip for live migration.
But maybe you can make a request to pve-devel@pve.proxmox.com or https://bugzilla.proxmox.com.

It should no

 

[draak]

I've sent a feature request, than you for your suggestion.

It would be nice to have this functionality, as migration over live production network is not desirable.

 

[tmikaeld]

Aw shit, and i who just connected my two servers to be able to use Proxmox HA and Live migration - since multicast isn't supported on Hetzner.

I tried the guide to change from multicast to unicast, but i can't access the config file as root even though the guide says i should be able to.

What to do?

 

[Toshik]

Aw shit, and i who just connected my two servers to be able to use Proxmox HA and Live migration - since multicast isn't supported on Hetzner.

I tried the guide to change from multicast to unicast, but i can't access the config file as root even though the guide says i should be able to.

What to do?

Use OpenVPN tunnel to make private network with multicasts. Works perfectly inside Hetzner

 

[giner]

Hello,
Could you please advise on setting up a dedicated network for live migration?
I've got two networks, client and storage. I could possibly use storage network for that, but I'd prefer having both servers directly interconnected by a cross-over cable.
Thank you.

I suppose you can assign an IP for another vmbr and use that IP to manage Proxmox VE. Should be checked if I am right.

 

[Toshik]

I suppose you can assign an IP for another vmbr and use that IP to manage Proxmox VE. Should be checked if I am right.

I sure migration is done by same network as clustering

 

[giner]

I sure migration is done by same network as clustering

I mean that separating "management network" and "cluster/migration" seems possible to me.

 

[Toshik]

I mean that separating "management network" and "cluster/migration" seems possible to me.

Well, if by management you mean web control, so it is done just by editing apache configuration.

 

[spirit]

Hi, We need to implement that in proxmox code.
Because by default it's use the default proxmox node ip. I'll try to work on this after promox 3.0 release.
Has someone filled a bugzilla request ?

 

[adamb]

I have cluster communication over my DRBD backend. This allows me to do live migrations over the 10GB networks. I have no issues utilizing the web gui over my LAN network.

 

[bradmc]

So, is this feature going to be added? I think it would be a very good addition to set up a dedicated migration network. Thanks.

 

[giner]

So, is this feature going to be added? I think it would be a very good addition to set up a dedicated migration network. Thanks.

I think it is still possible now. You can just create another vmbr for management.

 

[JimBeam]

As indicated above, file a feature request in the bugtracker if it does not already exist.

 

[kortex_fr]

Hello. Where are we with this feature? Is it planned to be able to manage a dedicated network for migration ?

 

[giner]

Hello. Where are we with this feature? Is it planned to be able to manage a dedicated network for migration ?

You can just use another network interface for web-management (different from vmbr0), so vmbr0 will only be used for migration.

 

[kortex_fr]

ok but how can assign another nic to web-management ? By configuring only a new network interface in /etc/network/interfaces ?

 

[giner]

ok but how can assign another nic to web-management ? By configuring only a new network interface in /etc/network/interfaces ?

When you assign an IP to any of NICs then web-interface will be accessible on this IP.

 

[kortex_fr]

Hello. It seems not to work.
I configured eth0 (@ip 192.168.3.91, lan 100Mb/s) for the Web interface and I put eth1 in vmbr0 (@ip 10.0.10.91, lan 1Gb/s).
Eth1 is connected to node 2 by a crossed cable (iperf results 936Mb/s for eth1 and 91.5 Mb/s for eth0).
During a live migration, the traffic still uses eth0 (migration speed 48.76 MB/s downtime 134ms).

I also configured migration_unsecure in datacenter.cfg but live migration still starting ssh migration tunnel.

I use proxmox 3.2-4