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From Marcus Sorensen <>
Subject Re: kvm - why just qcow2
Date Tue, 17 Dec 2013 01:55:58 GMT
No. You have to do qcow2 for KVM and VHD for XenServer as it is now,
by the way.  But if we allowes multiple types I think we'd want to
convert to a single 'preferred' format for each primary storage,
rather than messing with all different support between primary
storage, image formats, and their respective support for snapshots,
etc. So a file-based primary storage would always copy the template as
qcow2 (from vmdk, vdi, raw, whaterver), and a raw based primary
storage (like LVM or RBD) would always convert to raw (as it already
does), when copying template to primary storage.

On Mon, Dec 16, 2013 at 5:44 PM, Nux! <> wrote:
> On 16.12.2013 05:05, Marcus Sorensen wrote:
>> Actually, I'm wrong. It used to qemu-img convert qcow2 to qcow2, but
>> not any more. Qemu is actually just using vmdk natively.
> Disappointment. I was going to build some "hv agnostic" templates, but I
> really don't want my KVM to run vmdk files etc.
> To clarify, if I add a raw template to CS, will it do any conversion to VHD
> if it's a Xenserver or to Qcow2 if it's KVM?
> Lucian
> --
> Sent from the Delta quadrant using Borg technology!
> Nux!

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