Hi,
   We have had lot of troubles developing a ceph over xen. Finaly after
haunderd of test, we talked with libvirt-users seems that the problem was
found on libxl library which did not have support for rbd, but seems this
is solved from 1.3.2 libvirt version and xen-utils >4.5


http://libvirt.org/git/?p=libvirt.git;a=commit;h=fb2bd208e52bda2d329b95d9545baa8bf04558af

   We do not check it yet because we are waiting for the last ubuntu 16.04
LTS released next month.

Regards, I

2016-03-31 6:46 GMT+02:00 Jiri Kanicky <j...@ganomi.com>:

> Hi.
>
> There is a solution for Ceph in XenServer. With the help of my engineer
> Mark, we developed a simple patch which allows you to search and attach RBD
> image on XenServer. We create LVHD over the RBD (not RBD per VDI mapping
> yet), so it is far from ideal, but its a good start. The process of
> creating the SR over RBD works even from XenCenter.
>
> https://github.com/mstarikov/rbdsr
>
> Install notes are included and its very simple. Takes you few minutes per
> XenServer.
>
> We have been running this in our Sydney Citrix  lab for sometime and I
> have been running this at home also. Works great. For the future, the patch
> should work in the upcoming version of XenServer (Dundee) as well. Also we
> are trying to push native Ceph packages in the new version and build
> experimental (not official or approved yet) version of smapi which would
> allow us to map RBD per VDI. But there are no details on this. Anyway,
> everyone is welcome to participate in improving the patch on github.
>
> Let me know if you have any questions.
>
> Cheers,
> Jiri
>
> On 16/02/2016 15:30, Christian Balzer wrote:
>
>> On Tue, 16 Feb 2016 11:52:17 +0800 (CST) maoqi1982 wrote:
>>
>> Hi lists
>>> Is there any solution or documents that ceph as xenserver or xen backend
>>> storage?
>>>
>>>
>>> Not really.
>>
>> There was a project to natively support Ceph (RBD) in Xenserver but that
>> seems to have gone nowhere.
>>
>> There was also a thread last year here "RBD hard crash on kernel
>> 3.10" (google for it) wher Shawn Edwards was working on something similar,
>> but that seems to have died off silently as well.
>>
>> While you could of course do a NFS (some pains) or iSCSI (major pains)
>> head for Ceph the pains and reduced performance make it not an attractive
>> proposition.
>>
>> Christian
>>
>
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>



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