[ovirt-users] Delete disk references without deleting the disk

[Karli Sjöberg]

mån 2015-11-23 klockan 08:56 +0100 skrev Johan Kooijman:
> Hi Nir,
> 
> 
> I wonder if it can be made any more efficient, I think this method is
> clear enough. The only thing not clear to me was that while deleting
> the storage domain, it doesn't touch it's contents.

Perhaps another wording? "Delete" vs. "Remove"?

/K
> 
> On Sun, Nov 22, 2015 at 9:00 PM, Nir Soffer <nsoffer at redhat.com>
> wrote:
>         On Sun, Nov 22, 2015 at 6:14 PM, Johan Kooijman
>         <mail at johankooijman.com> wrote:
>         > Hi all,
>         >
>         > I have about 100 old VM's in my cluster. They're powered
>         down, ready for
>         > deletion. What I want to do is delete the VM's including
>         disks without
>         > actually deleting the disk images from the storage array
>         itself. Is that
>         > possible?
>         
>         Select the vm, click "remove", in the confirmation dialog,
>         uncheck the
>         "Delete disks"
>         checkbox, confirm.
>         
>         > At the end I want to be able to delete the storage domain
>         (which
>         > then should not hold any data, as far as ovirt is
>         concerned).
>         
>         Ovirt deleted the vms, but is keeping the disks, so the
>         storage domain
>         does hold all
>         the disks.
>         
>         >
>         > Reason for this: it's a ZFS pool with dedup enabled,
>         deleting the images one
>         > by one will kill the array with 100% iowa for some time.
>         
>         So what do you need is to destroy the storage domain, which
>         will
>         remove all the entities
>         associated with it, but will keep  the storage without any
>         change.
>         
>         Do this:
>         1. Select the storage tab
>         2. select the domain
>         3. In the data center sub tab, click "maintenance"
>         4. When domain is in maintenance, click "detach"
>         5. Right click the domain and choose "destroy"
>         
>         This will remove the storage domain from engine database,
>         leaving
>         the contents of the domain.
>         
>         You can now delete the contents using favorite system tools.
>         
>         Now, if we want to add support for this in ovirt, how would
>         you delete
>         the entire domain in a more efficient way?
>         
>         Nir
> 
> 
> 
> 
> -- 
> Met vriendelijke groeten / With kind regards,
> Johan Kooijman
> 
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