Re: [Openstack] Ceph as a NOVA-INST-DIR/instances/ storage backend
Thank you Tommi, but can I use RBD for booting instances? I would like store whole VM on the Ceph, not only persistent volumes (actually for my project I not prefer use persistent volumes at all). Igor Laskovy facebook.com/igor.laskovy Kiev, Ukraine On Jun 25, 2012 7:03 PM, Tommi Virtanen t...@inktank.com wrote: On Sat, Jun 23, 2012 at 11:42 AM, Igor Laskovy igor.lask...@gmail.com wrote: Hi all from hot Kiev)) Does anybody use Ceph as a backend storage for NOVA-INST-DIR/instances/ ? Is it in production use? Live migration is still possible? I kindly ask any advice of best practices point of view. That's the shared NFS mount style for storing images, right? While you could use the Ceph Distributed File System for that, there's a better answer (for both Nova and Glance): RBD. Our docs are still being worked on, but you can see the current state at http://ceph.com/docs/master/rbd/rbd-openstack/ ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
Re: [Openstack] Ceph as a NOVA-INST-DIR/instances/ storage backend
On Mon, Jun 25, 2012 at 6:03 PM, Tommi Virtanen t...@inktank.com wrote: On Sat, Jun 23, 2012 at 11:42 AM, Igor Laskovy igor.lask...@gmail.com wrote: Hi all from hot Kiev)) Does anybody use Ceph as a backend storage for NOVA-INST-DIR/instances/ ? Yes. http://www.sebastien-han.fr/blog/2012/06/10/introducing-ceph-to-openstack/ Look at the Live Migration with CephFS part. Is it in production use? Production use would require CephFS to be production ready, which at this point it isn't. Live migration is still possible? Yes. I kindly ask any advice of best practices point of view. That's the shared NFS mount style for storing images, right? While you could use the Ceph Distributed File System for that, there's a better answer (for both Nova and Glance): RBD. ... which sort of goes hand-in-hand with boot from volume, which was just recently documented in the Nova admin guide, so you may want to take a look: http://docs.openstack.org/trunk/openstack-compute/admin/content/boot-from-volume.html That being said, volume attachment persistence across live migrations hasn't always been stellar in Nova, and I'm not 100% sure how well trunk currently deals with that. Cheers, Florian ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
Re: [Openstack] Ceph as a NOVA-INST-DIR/instances/ storage backend
Thank you Florian and Tommi, I appreciated your help)) On Mon, Jun 25, 2012 at 8:18 PM, Tommi Virtanen t...@inktank.com wrote: On Mon, Jun 25, 2012 at 10:03 AM, Igor Laskovy igor.lask...@gmail.com wrote: but can I use RBD for booting instances? I would like store whole VM on the Ceph, not only persistent volumes (actually for my project I not prefer use persistent volumes at all). OpenStack Essex does not make it convenient, but it can boot off of RBD. We don't have really good documentation on that yet, but the relevant resources are: https://github.com/ceph/ceph-openstack-tools/blob/master/boot-from-volume https://github.com/ceph/ceph-openstack-tools/blob/master/start-on-rbd.sh http://docs.openstack.org/trunk/openstack-compute/admin/content/boot-from-volume.html -- Igor Laskovy facebook.com/igor.laskovy Kiev, Ukraine ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
[Openstack] Ceph as a NOVA-INST-DIR/instances/ storage backend
Hi all from hot Kiev)) Does anybody use Ceph as a backend storage for NOVA-INST-DIR/instances/ ? Is it in production use? Live migration is still possible? I kindly ask any advice of best practices point of view. -- Igor Laskovy facebook.com/igor.laskovy Kiev, Ukraine ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
