[Engine-devel] Shared disk / Floating disk import/export (was: Re: move disk command)

[Ayal Baron]

----- Original Message -----
> On 01/17/2012 11:57 AM, Omer Frenkel wrote:
> > 
> > 
> > ----- Original Message -----
> >> From: "Ayal Baron" <abaron at redhat.com>
> >> To: "Omer Frenkel" <ofrenkel at redhat.com>
> >> Cc: engine-devel at ovirt.org, "Jon Choate" <jchoate at redhat.com>
> >> Sent: Tuesday, January 17, 2012 10:45:53 AM
> >> Subject: Shared disk / Floating disk import/export (was: Re:
> >> [Engine-devel] move disk command)
> >>
> >>
> >> [SNIP]
> >>
> >>>>> This may be unrelated, but user would be allowed to export and
> >>>>> import a floating disk, right?
> >>>>> I would like the ability to import *any* disk in the export
> >>>>> domain
> >>>>> as a floating disk, but in the least, export and import disks
> >>>>> not
> >>>>> associated with a VM.
> >>>
> >>> you are right, it is unrelated, this thread is about move disk of
> >>> a
> >>> vm between SDs,
> >>> export and import is copy, and floating disks is part of the
> >>> shared
> >>> disk feature,
> >>> this indeed need to be discussed in that scope.
> >>
> >> Ok, so I've changed the subject, now let's discuss it.
> >>
> > 
> > Adding Maor,
> > not sure if we have any plan regard export/import of floating disk,
> > or in general, exporting disk without it's vm (if I understood Ayal
> > correctly)
> > 
> > Maor, any comments?
> I remember, we mentioned export/import issue in our last meeting with
> Andrew in the context of shared raw disk.
> It was decided then, that export/import will not be supported by
> shared
> raw disk, I'm not sure if we also decided that for floating disk,
> but I think its a PM decision.
> 
> Support import/export domain might evolve to a big change, since if
> we
> want to export disk, we might also want to reflect all its
> configuration
> and functionality there, also reflect disks which are attached to VMs
> and templates as well.

What properties does a disk have?
Interface is what type of connection is used when plugging the disk in the computer (VM) so it's not really a disk property.
Address is also VM specific
Description is already stored in storage side.
What else do you have for disk?

Note that being able to import floating disks means that we'd be able to take any data storage domain and import any disk(s) from it (assuming user changes domain type to export domain, which users already know how to do)