I configured a HA+DR setup and HA nodes are working fine, but having done that 6 months ago and now configuring the DR node. Although the DR node configures fine, the HA nodes do not seem to know the DR exists even though the config exists in the r0.res file. When i try drbdadm connect it says the config does not exist.
Is there a way to reload the config without having to restart the HA nodes.
A drbdadm adjust r0 might be all that is needed here. The adjust command will do two things, it will re-read any configuration from disk and reload it to memory if the config has changed. It also will try to bring the resources into the usual desired state (e.g. bring them up if down, connect if disconnected, attach to storage if diskless, etc).