[pve-devel] Fw: Storage migration

[Stefan Priebe - Profihost AG]

What about linking disks? You create a disk vm-117-1 then you can link this disk to vm-112 and in config you find something like virtio0: vm-112-3|vm-117-1

Stefan

Am 19.11.2012 um 08:35 schrieb Stefan Priebe - Profihost AG <s.priebe at profihost.ag>:

> Yes that's right. We use ocfs2 and right now we need a 3rd vm exporting via iscsi.
> 
> Stefan
> 
> Am 19.11.2012 um 08:24 schrieb Alexandre DERUMIER <aderumier at odiso.com>:
> 
>>>> What about just renaming disks if you want to move disk from vm A to vm 
>>>> B? Not sure if all storage backends support this but at least some do. 
>> 
>> AFAIK, it's possible with sheepdog,rbd,nexenta and files of course. (I Think that lvm is possible too)
>> 
>> 
>> Maybe One thing not possible  with current disk naming it's sharing a disk between 2 guests. (with ocfs2 fs cluster in guests by example)
>> 
>> 
>> 
>> ----- Mail original ----- 
>> 
>> De: "Stefan Priebe" <s.priebe at profihost.ag> 
>> À: "Dietmar Maurer" <dietmar at proxmox.com> 
>> Cc: "Alexandre DERUMIER" <aderumier at odiso.com>, pve-devel at pve.proxmox.com 
>> Envoyé: Dimanche 18 Novembre 2012 21:09:14 
>> Objet: Re: [pve-devel] Fw: Storage migration 
>> 
>> Am 18.11.2012 16:00, schrieb Dietmar Maurer: 
>>>> Wouldn't it be useful to be able to move disks from VM X to VM Y. I don't like 
>>>> that disks are fixed to vms. 
>>> 
>>> We assigns disks to VMs. So there is a Disk -> VM (owner) relation. 
>>> 
>>> This relation is the basic concept we use for cluster wide locking, and makes many things 
>>> easier because we know that. 
>>> 
>>> I guess you need to re-implement the whole framework if you want to change that. 
>>> 
>> What about just renaming disks if you want to move disk from vm A to vm 
>> B? Not sure if all storage backends support this but at least some do. 
>> 
>> Stefan 
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