Hallo ceph-users, is it possible to change the rbd caching settings [1] from a rbd devices which is already online, mapped and in use? I'm interesting in changing "READ-AHEAD SETTINGS" because of poor read performance of our iscsi/fc-target. But it's not (easy) possible to unmount the rbd device, because it's in production use. [1] http://docs.ceph.com/docs/master/rbd/rbd-config-ref/?highlight=replica best regards Danny
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