[pve-devel] Fw: Storage migration
Stefan Priebe - Profihost AG
s.priebe at profihost.ag
Mon Nov 19 08:39:46 CET 2012
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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