[pve-devel] Storage migration: online design solution

[Alexandre DERUMIER]

>>I had solved it with the human-monitor command 
how ? syntax ?  

>>but I discovered this 
>>was very unstable. Your usage of vm_mon_cmd seems a lot more stable so 
>>I have shifted to this too. 

They are 2 ways with qemu, human monitor command (hmp) aka old way.
since last year, we use QMP protocol, which use json, easier to parse response.

But both protocol are doing the same thing, so it's strange that you have resolved it with human monitor command.

>>Have you tried copying a boot device and tested that grub was able to 
>>see the new root?
Yes, that was the boot device.

----- Mail original ----- 

De: "Michael Rasmussen" <mir at datanom.net> 
À: "Alexandre DERUMIER" <aderumier at odiso.com> 
Envoyé: Jeudi 10 Janvier 2013 19:35:30 
Objet: Re: [pve-devel] Storage migration: online design solution 

On Thu, 10 Jan 2013 14:22:02 +0100 (CET) 
Alexandre DERUMIER <aderumier at odiso.com> wrote: 

> I have send a new version of my vm copy/clone feature, 
> I have added drive-mirror for live vm copy. 
> 
> So you can look a it to get inspiration for your needs. (check patch 14/14) 

I can see that our solutions are remarkable identical:-) 
I had solved it with the human-monitor command but I discovered this 
was very unstable. Your usage of vm_mon_cmd seems a lot more stable so 
I have shifted to this too. 
> 
> I check the uuid of the partitions, they have not changed after the copy. 
> 
Have you tried copying a boot device and tested that grub was able to 
see the new root? 

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