[ovirt-users] Live Storage Migration

[Greg Padgett]

On 09/14/2015 05:20 AM, Markus Stockhausen wrote:
> Hi,
>
> somehow I got lost about the possibility to do a live storage migration.
> We are using OVirt 3.5.4 + FC20 Nodes (virt-preview - qemu 2.1.3)
>
>  From the WebUI I have the following possibilites:
>
> 1) disk without snapshot: VMs tab -> Disks -> Move: Button is active
> but it does not allow to do a migration. No selectable storage domain
> although we have 2 NFS systems. Gives warning hints about
> "you are doing live migration, bla bla, ..."
>
> 2) disk with snapshot: VMs tab -> Disk -> Move: Button greyed out
>
> 3) BUT! Disks tab -> Move: Works! No hints about "live migration"
> I do not dare to click go ...
>
> While 1/2 might be consistent they do not match to 3. Maybe someone
> can give a hint what should work, what not and where me might have
> an error.

Hi Markus,

Is this still relevant?  If so...

Live storage migration requires the following (from the code that 
determines if the "Move" buttons in 1/2 above are greyed or not):

  - cluster and dc version must be at least 3.2
  - vm must be stateful and up or paused
  - disk to migrate must be the active layer (ie not a snapshot)
  - disk images must be 'OK'

Is it possible one of these changed for the VM(s) in question?

Thanks,
Greg

> Thanks.
>
> Markus
>
>
>
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