>>What if I just wanted to back up a running cluster without having another 
>>cluster to replicate to

Yes, import is optionnal,

you can simply export and pipe to tar


rbd export-diff --from-snap snap1 pool/image@snap2 - | tar ....


----- Mail original ----- 

De: "Christopher Armstrong" <ch...@opdemand.com> 
À: "Alexandre DERUMIER" <aderum...@odiso.com> 
Cc: ceph-users@lists.ceph.com 
Envoyé: Mercredi 5 Novembre 2014 10:08:49 
Objet: Re: [ceph-users] Full backup/restore of Ceph cluster? 


Hi Alexandre, 


Thanks for the link! Unless I'm misunderstanding, this is to replicate an RBD 
volume from one cluster to another. 
? i.e. I'd ideally like a tarball of raw files that I could extract on a new 
host, start the Ceph daemons, and get up and running. 





Chris Armstrong 
Head of Services 
OpDemand / Deis.io 
GitHub: https://github.com/deis/deis -- Docs: http://docs.deis.io/ 


On Wed, Nov 5, 2014 at 1:04 AM, Alexandre DERUMIER < aderum...@odiso.com > 
wrote: 


>>Is RBD snapshotting what I'm looking for? Is this even possible? 

Yes, you can use rbd snapshoting, export / import 

http://ceph.com/dev-notes/incremental-snapshots-with-rbd/ 

But you need to do it for each rbd volume. 

Here a script to do it: 

http://www.rapide.nl/blog/item/ceph_-_rbd_replication 



(AFAIK it's not possible to do it at pool level) 


----- Mail original ----- 

De: "Christopher Armstrong" < ch...@opdemand.com > 
À: ceph-users@lists.ceph.com 
Envoyé: Mercredi 5 Novembre 2014 08:52:31 
Objet: [ceph-users] Full backup/restore of Ceph cluster? 




Hi folks, 


I was wondering if anyone has a solution for performing a complete backup and 
restore of a CEph cluster. A Google search came up with some articles/blog 
posts, some of which are old, and I don't really have a great idea of the 
feasibility of this. 


Here's what I've found: 


http://ceph.com/community/blog/tag/backup/ 

http://ceph.com/docs/giant/rbd/rbd-snapshot/ 

http://t3491.file-systems-ceph-user.file-systemstalk.us/backups-t3491.html 



Is RBD snapshotting what I'm looking for? Is this even possible? Any info is 
much appreciated! 


Thanks, 


Chris 




Chris Armstrong 
Head of Services 
OpDemand / Deis.io 
GitHub: https://github.com/deis/deis -- Docs: http://docs.deis.io/ 

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