[pve-devel] Allow dedicated migration network (bug #1177)

[Alexandre DERUMIER]

>>Note that it's also possible to use nbd server (without qemu) for offline migration, and it's 
>>possible to use tls too. (I don't have yet added patches for the live storage migration, but it's possible too). 

See this blog about qemu live migration && nbd support for tls

https://www.berrange.com/posts/2016/04/05/improving-qemu-security-part-5-tls-support-for-nbd-server-client/

I don't have benchmarked it, but I think it should be faster than ssh

----- Mail original -----
De: "aderumier" <aderumier at odiso.com>
À: "pve-devel" <pve-devel at pve.proxmox.com>
Envoyé: Vendredi 28 Octobre 2016 08:40:21
Objet: Re: [pve-devel] Allow dedicated migration network (bug #1177)

>>a) this does also the storage migration over the network, but storage 
>>migration is currently 
>> always with ssh (+ rsync) there are plans to use a dd + netcat (+ 
>>maybe also compression in between) 
>> combination if the migration type is insecure, to speed things up. 

Note that it's also possible to use nbd server (without qemu) for offline migration, and it's 
possible to use tls too. (I don't have yet added patches for the live storage migration, but it's possible too). 

The only thing missing from nbd is sparse support, but it's comming for qemu 2.8. 


>>b) some patches of this series conflicts quite a bit with Alexandres 
>>live storage migration series, 
>>so I can rebase those if his code gets merged, should be mainly the 
>>patches in qemu-server :) 

Feel free to apply your patches, I can rebase my patches later as it's not yet finished. 



----- Mail original ----- 
De: "Thomas Lamprecht" <t.lamprecht at proxmox.com> 
À: "pve-devel" <pve-devel at pve.proxmox.com> 
Envoyé: Jeudi 27 Octobre 2016 17:24:18 
Objet: Re: [pve-devel] Allow dedicated migration network (bug #1177) 

Two notes I possible forgot: 

a) this does also the storage migration over the network, but storage 
migration is currently 
always with ssh (+ rsync) there are plans to use a dd + netcat (+ 
maybe also compression in between) 
combination if the migration type is insecure, to speed things up. 

b) some patches of this series conflicts quite a bit with Alexandres 
live storage migration series, 
so I can rebase those if his code gets merged, should be mainly the 
patches in qemu-server :) 

-- Thomas 


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