Thanks for catching this, Akira. Unfortunately, this fix causes the "node_states" and "peer_states" graphs to be mixed up. I guess this happens because the same IDs are used in each subgraph. The graphs should be separate. On reflection, the digraph node_states can be removed entirely. It is too basic to contain any useful information. In addition it references "ioctl_set_state". The ioctl configuration interface for DRBD has long been removed. In fact, it was never in the upstream version of DRBD. Best regards, Joel