Open Stack

Please do feel free to write a  patch - you can probably do the best job,
given that the questions are still fresh in your mind.

On 1 March 2015 at 21:37, Nikesh Kumar Mahalka <nikeshmahalka at vedams.com>
wrote:

>
> Thanks,
> I think if these informations are added in openstack documents having
> topic "volume migration" then it would be good for new folks in cinder.
>
> Regards
> Nikesh
>
> On Sun, Mar 1, 2015 at 10:12 PM, Duncan Thomas <duncan.thomas at gmail.com>
> wrote:
>
>> Migrate - move between backends of the same volume type
>> Retype - move between types. Will migrate the volume for you if necessary
>>
>> On 1 March 2015 at 09:40, Avishay Traeger <avishay at stratoscale.com>
>> wrote:
>>
>>> Nikesh,
>>> The case you are trying is supposed to fail.  You have a volume of type
>>> dothill_realstor1 which is defined to say "this volume must be on backend
>>> DotHill_RealStor1".  This is a requirement that you defined for that
>>> volume.  Now you want to migrate it to realstor2, which is a violation of
>>> the requirement that you specified.  To migrate it, you should change the
>>> volume type (retype), which changes the requirement.
>>>
>>> Thanks,
>>> Avishay
>>>
>>> On Sat, Feb 28, 2015 at 11:02 AM, Nikesh Kumar Mahalka <
>>> nikeshmahalka at vedams.com> wrote:
>>>
>>>> I tried below link  for volume migration on my driver and also similar
>>>> efforts for LVM.
>>>> Even whatever documents available in openstack for
>>>> volume-migration,each one showing volume migration of a volume having
>>>> volume type None
>>>>
>>>> I added host assisted volume migration function in my cinder driver.
>>>> When i am trying volume migration on a volume without volume type,then
>>>> my volume migration function is getting called and i  am able to do
>>>> volume migration.
>>>>
>>>> But when i am trying volume migration on a volume having volume
>>>> type,then my volume migration function is not getting called.
>>>>
>>>>
>>>> http://paste.openstack.org/show/183392/
>>>> http://paste.openstack.org/show/183405/
>>>>
>>>>
>>>>
>>>> On Tue, Jan 20, 2015 at 12:31 AM, Nikesh Kumar Mahalka
>>>> <nikeshmahalka at vedams.com> wrote:
>>>> > do cinder retype (v2) works for lvm?
>>>> > How to use cinder retype?
>>>> >
>>>> > I tried for volume migration from one volume-type LVM backend to
>>>> > another volume-type LVM backend.But its failed.
>>>> > How can i acheive this?
>>>> >
>>>> > Similarly i am writing a cinder volume driver for my array and want to
>>>> > migrate volume from one volume type to another volume type for my
>>>> > array backends.
>>>> > so want to know how can i achieve this in cinder driver?
>>>> >
>>>> >
>>>> >
>>>> > Regards
>>>> > Nikesh
>>>>
>>>>
>>>> __________________________________________________________________________
>>>> OpenStack Development Mailing List (not for usage questions)
>>>> Unsubscribe:
>>>> OpenStack-dev-request at lists.openstack.org?subject:unsubscribe
>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>>>>
>>>
>>>
>>>
>>> --
>>> *Avishay Traeger*
>>> *Storage R&D*
>>>
>>> Mobile: +972 54 447 1475
>>> E-mail: avishay at stratoscale.com
>>>
>>>
>>>
>>> Web <http://www.stratoscale.com/> | Blog
>>> <http://www.stratoscale.com/blog/> | Twitter
>>> <https://twitter.com/Stratoscale> | Google+
>>> <https://plus.google.com/u/1/b/108421603458396133912/108421603458396133912/posts>
>>>  | Linkedin <https://www.linkedin.com/company/stratoscale>
>>>
>>>
>>> __________________________________________________________________________
>>> OpenStack Development Mailing List (not for usage questions)
>>> Unsubscribe:
>>> OpenStack-dev-request at lists.openstack.org?subject:unsubscribe
>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>>>
>>>
>>
>>
>> --
>> Duncan Thomas
>>
>> __________________________________________________________________________
>> OpenStack Development Mailing List (not for usage questions)
>> Unsubscribe:
>> OpenStack-dev-request at lists.openstack.org?subject:unsubscribe
>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>>
>>
>
> __________________________________________________________________________
> OpenStack Development Mailing List (not for usage questions)
> Unsubscribe: OpenStack-dev-request at lists.openstack.org?subject:unsubscribe
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>
>


-- 
Duncan Thomas
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20150301/2d845ecb/attachment.html>