[ceph-users] Running instances on ceph with openstack

2014-12-23 Thread Zeeshan Ali Shah
Has any one tried running instances over ceph i.e using ceph as backend for vm storage . How would you get instant migration in that case since every compute host will have it's own RBD . other option is to have a big rbd pool on head node and share it with NFS to have shared file system any idea

Re: [ceph-users] Running instances on ceph with openstack

2014-12-23 Thread Nico Schottelius
Hello Ali Shah, we are running VMs using Opennebula with ceph as the backend. So far with varying results: From time to time VMs are freezing, probably panic'ing when the load is too high on the ceph storage due to rebalance work. We are experimenting with --osd-max-backfills 1, but it hasn't

Re: [ceph-users] Running instances on ceph with openstack

2014-12-23 Thread Zeeshan Ali Shah
Thank Gallati, which means we donot need have to have shared rbd for live migration ? On Tue, Dec 23, 2014 at 11:47 AM, René Gallati c...@gallati.net wrote: Hello, On 23.12.2014 09:12, Zeeshan Ali Shah wrote: Has any one tried running instances over ceph i.e using ceph as backend for vm