Re: [Rdo-list] cinder retype and QoS
On 19 Nov 2014, at 11:33, Kashyap Chamarthy <kchamart(a)redhat.com> wrote:
On Wed, Nov 19, 2014 at 09:59:46AM +0000, Arne Wiebalck wrote:
> Hi,
>
>> From what I see, "cinder retype” does not work with different QoS
>> types yet, correct?
I'm not a Cinder expert, but looking at the change[1] that introduced
the Cinder volume retype functionality, at end of the commit message, it
says:
[. . .]
This version will cause retype operations to fail if the current and
new volume types have different:
1. QoS settings that are enforced by the front-end for in-use volumes.
2. encryption settings.
Not sure if that (point 1 there) answers your question.
[1] https://review.openstack.org/#/c/44881/ -- Add ability to modify
volume type
Thanks. I saw that change. This and packstack tells me it does not work, at least
for a Ceph based backend :) Also the Cinder code (retype being empty in driver.py
and not being overwritten rbd.py points) in that direction.
http://redhatstackblog.redhat.com/2014/04/15/whats-new-in-icehouse-storage/
gives a slightly different impression IMHO.
Cheers,
Arne
--
Arne Wiebalck
CERN IT