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From Mike Tutkowski <mike.tutkow...@solidfire.com>
Subject Re: Question about Ceph and Snapshots
Date Mon, 25 Aug 2014 13:23:44 GMT
Thanks, Wido!

On Monday, August 25, 2014, Wido den Hollander <wido@widodh.nl> wrote:

>
>
> On 08/25/2014 04:31 AM, Mike Tutkowski wrote:
>
>> Hey Wido,
>>
>> Can you point me in the right direction to examine the code related to
>> volume snapshots being taken when Ceph is being used for primary storage?
>>
>> I don't see a Ceph storage plug-in that implements the takeSnapshot
>> method.
>>
>
> There is no specific code in the Management Server since it's all done by
> the KVM Agent.
>
> You'll find most code in the LibvirtStorageAdapter in the KVM plugin code.
> That's where it takes the snapshots and copies it over ti Secondary Storage.
>
>
>> In particular, I'm curious how the backup process works.
>>
>>
> In short, it asks Qemu to copy the RBD image to a QCOW2 file on Secondary
> Storage.
>
> Wido
>
>  Thanks!
>>
>>

-- 
*Mike Tutkowski*
*Senior CloudStack Developer, SolidFire Inc.*
e: mike.tutkowski@solidfire.com
o: 303.746.7302
Advancing the way the world uses the cloud
<http://solidfire.com/solution/overview/?video=play>*™*

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