Re: Full backup/restore of Ceph cluster?

[Irek Fasikhov <malmyzh@xxxxxxxxx>]

Hi.

I changed the script and added it multithreaded archiver.

See: http://www.theirek.com/blog/2014/10/26/primier-biekapa-rbd-ustroistva

2014-11-05 14:03 GMT+03:00 Alexandre DERUMIER <aderumier@xxxxxxxxx>:

>>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" <chris@xxxxxxxxxxxx>
À: "Alexandre DERUMIER" <aderumier@xxxxxxxxx>
Cc: ceph-users@xxxxxxxxxxxxxx
Envoyé: Mercredi 5 Novembre 2014 10:08:49
Objet: Re: 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 < aderumier@xxxxxxxxx > 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" < chris@xxxxxxxxxxxx >
À: ceph-users@xxxxxxxxxxxxxx
Envoyé: Mercredi 5 Novembre 2014 08:52:31
Objet: 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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