[one-users] attach persistent empty disk

Carlos Martín Sánchez cmartin at opennebula.org
Wed Nov 26 07:40:07 PST 2014


On Thu, Nov 20, 2014 at 11:02 AM, Olivier Sallou <olivier.sallou at irisa.fr>

> Hi,
> I wonder how in OpenNebula we can create an empty disk on-the-fly,
> attach it to a VM (up to here, this is fine), then detach the disk and
> save it for later reuse.
> I could not found a way to do so.
> Persistency seems more image related, not "hot disks". But users cannot
> create images so easily (a few clicks in sunstone), they need to create
> the disk, declare it with templates etc... Would be fine to be allowed
> to save the hot disk as an image or to be able to save it and replug it
> later on.
> Olivier

Right now the only way to do that is creating a new empty datablock image,
and attaching that image instead of a volatile disk. The image can be
persistent, or it can be saved to a new one with a deferred disk snapshot.

Please open a feature request for volatile disk persistence and we will
consider it for future releases.

Best regards

Carlos Martín, MSc
Project Engineer
OpenNebula - Flexible Enterprise Cloud Made Simple
www.OpenNebula.org <http://www.opennebula.org/> | cmartin at opennebula.org |
@OpenNebula <http://twitter.com/opennebula>
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