On Mon, Jun 8, 2015 at 3:44 PM, Arnaud Virlet <avirlet@xxxxxxxxxxxxxxx> wrote: > > > On 06/08/2015 01:59 PM, Andrey Korolyov wrote: >> >> >> Am I understand you right that you are using certain template engine >> for both OCFS- and RBD-backed volumes within a single VM` config and >> it does not allow per-disk cache mode separation in a suggested way? >> > My VM has 3 disks on RBD backend. disks 1 and 2 have cache=writeback, disk 3 > ( for ocfs2 ) has cache=none in my VM XML file. When I start the VM, > libvirt produce a launch string with cache=wtriteback for disk 1/2, and with > cache=none for disk 3. > Even if "cache = none" for disk 3, it seems doesn't take effect without set > rbd cache = false in ceph.conf. It is very strange and contradictive to what it should be. Could you post a resulting qemu argument string, by a chance? Also please share a method which you are using to determine if disk uses emulator cache or not. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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