On 5 February 2015 at 07:22, Sage Weil <sage@xxxxxxxxxxxx> wrote:
> Is the snapshoting performed by ceph or by the fs? Can we switch to
> xfs and have the same capabilities: instant snapshot + instant boot
> from snapshot?
The feature set and capabilities are identical. The difference is that on
btrfs we are letting btrfs do the efficient copy-on-write cloning when we
touch a snapshotted object while with XFS we literally copy the object
file (usually 4MB) on the first write.
Are ceph snapshots really that much faster when using btrfs underneath? one of the problem we have with ceph is that snapshot take/restore is insanely slow, tens of minutes - but we are using xfs.
--
Lindsay
_______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
