On Wed, Jan 11, 2017 at 5:09 PM, Jason Dillaman <jdill...@redhat.com> wrote:
> I would like to propose that starting with the Luminous release of Ceph, RBD
> will no longer support the creation of v1 image format images via the rbd
> CLI and librbd.
>
> We previously made the v2 image format the default and deprecated the v1
> format under the Jewel release. It is important to note that we would still
> support the use of v1 images by the CLI, VMs, etc for Luminous.
>
> Any objections or concerns?

We need a way to create v1 images for testing purposes for as long as
the use is supported.  I'd vote for just making it harder - hide
--image-format 1 behind an additional (possibly undocumented) flag, if
the maintenance burden is acceptable.

Thanks,

                Ilya
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