[pve-devel] [PATCH 1/3] add live storage migration with vm migration

[Alexandre DERUMIER]

>>That sounds worse ;-)
>>The only real solution is to make drive-mirror write to both disks in a
>>raid-1 fashion once the initial sync is completed in order to be able to
>>detach the destination in an error case without losing data.

yes, I think it's possible to use multiple drive-mirror in parralel, and do the block-job-complete to do 1 switch only.

I can adapt my patches serie to test.


The only think:

I still don't known how to manage the case of target node crash after the disk are migrate, but vm still on source node.





----- Mail original -----
De: "Wolfgang Bumiller" <w.bumiller at proxmox.com>
À: "aderumier" <aderumier at odiso.com>
Cc: "pve-devel" <pve-devel at pve.proxmox.com>
Envoyé: Mardi 18 Octobre 2016 11:07:35
Objet: Re: [pve-devel] [PATCH 1/3] add live storage migration with vm migration

On Tue, Oct 18, 2016 at 01:50:37AM +0200, Alexandre DERUMIER wrote: 
> >>Another possibility : create a new vmid on target host, with his own config. 
> >>Like this user can manage old and new vm after migration . and If something crash during the migration,this is more easier 
> 
> We could adapt vm_clone to be able to use remote local storage. 
> 
> then reuse vm_clone in vm migration. 

That sounds worse ;-) 
The only real solution is to make drive-mirror write to both disks in a 
raid-1 fashion once the initial sync is completed in order to be able to 
detach the destination in an error case without losing data.