Re: [Users] oVirt 3.5 planning

----- Original Message ----- > From: "Itamar Heim" <iheim(a)redhat.com&gt; > To: "Federico Alberto Sayd" <fsayd(a)uncu.edu.ar&gt;, users(a)ovirt.org, "Federico Simoncelli" <fsimonce(a)redhat.com&gt; > Sent: Thursday, March 20, 2014 6:47:14 PM > Subject: Re: [Users] oVirt 3.5 planning > > On 03/20/2014 07:30 PM, Federico Alberto Sayd wrote: >> 3 - Another question, when you convert a VM to template I see that it is >> created with preallocated disk even if the original VM had thinly >> provisioned disk. Is there no way to make the template with the same >> type of disk (thinly provisioned)?? > on NFS - it doesn't matter. > on block storage - i don't remember why. maybe federico remembers. It was for performance reasons since on block it would result in a qcow2 image. We wanted the access to the template to be as fast as possible. The same question was brought up few months ago when we discussed importing images from glance as templates. Anyway in that case we decided (for simplicity) to allow the import as template also for qcow2 images.