Re: [Openstack-operators] what is the different in use Qcow2 or Raw in Ceph

2015-05-28 Thread Dmitry Borodaenko
em working well. >>>>>>> >>>>>>> what is the different use qcow2 and RAW in Ceph? >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Shake Chen >>>>>>> >>>>>

Re: [Openstack-operators] what is the different in use Qcow2 or Raw in Ceph

2015-05-28 Thread Dmitry Borodaenko
#/c/125963/ However it has met the usual resistance from Nova core team, so based on my previous experience with similar RBD related changes (RBD backed live migrations first worked on Havana, landed in Juno), it's likely to take until M release of OpenStack before it's actually merged. Ho

Re: [Openstack-operators] Shared storage for live-migration with NFS, Ceph and Lustre

2015-06-20 Thread Dmitry Borodaenko
With Ceph, you'll want to use RBD instead of CephFS, we had OpenStack live migration working with Ceph RBD for about a year and a half now, here's a PDF slide deck with some details: https://drive.google.com/open?id=0BxYswyvIiAEZUEp4aWJPYVNjeU0 If you take CephFS and the bottlenecks associated wit