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.
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