DRBD-Addon - resize Images

Hello ,

i’ve tried the new DRBD-Addon for Opennebula with a Cluster consisting of 3 Compute Nodes.
If i rollout a new VM with changed Imagessize it will not be reconized by DRBD.The Volume stay’s in the same Size. Resizing by hand with drbdmanage resize-volume does not work ether.
Is resizing not supported with DRBD Storage backend ?