[Openstack] ceph and openstack

Geo Varghese gvarghese at aqorn.com
Tue Mar 8 08:10:00 UTC 2016


which error it is showing?

On Tue, Mar 8, 2016 at 11:37 AM, Martin Wilderoth <
martin.wilderoth at linserv.se> wrote:

> Thanks Both,
>
> I will run it on controller node.
>
> My cinder-volume crashed.
> Any dependensis or is my ceph cluster to old
> (Im running dumpling) I will investigate
>
> Thanks
>
>
> On 8 March 2016 at 06:32, Mike Smith <mismith at overstock.com> wrote:
>
>> If you are using Ceph as a Cinder backend, you would likely want to run
>> cinder-volume on your controller node(s).   You could run it anywhere I
>> suppose, including on the Ceph nodes themselves, but I’d recommend having
>> it on the controllers.  Wherever you run it, you’d need a properly
>> configured ceph.conf, and if you are using cephx authentication, you’d need
>> the keyring files.  Your compute nodes would need that conf and keys also.
>>
>> You can also run Ceph for nova ephemeral disks without Cinder at all.
>> You’d do that in nova.conf.
>>
>> We use both at Overstock.  Ceph for nova ephemeral for general use, and
>> also Ceph as one option in a multi-backend Cinder configuration.  We also
>> use it for a Glance store, which is a fantastic option because it makes
>> disk provisioning for Nova instant, since you’re essentially snapshotting
>> and image RBD into an RBD for Nova/Cinder.
>>
>> Mike Smith
>> Lead Cloud Systems Architect
>> Overstock.com
>>
>>
>>
>> On Mar 7, 2016, at 10:04 PM, Martin Wilderoth <
>> martin.wilderoth at linserv.se> wrote:
>>
>>
>> Hello
>>
>> Where should I run cinder-volume when i user ceph
>> on the controller ?
>> on the ceph mon or mds ?
>> or ?
>>
>> Maybe it dosn't matter ?
>>
>> Thanks in advance
>>
>> Regards Martin
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>
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-- 
--
Regards,
Geo Varghese
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