Add drbd.service as a dependency to sm.service
During initial controller configuration, the puppet manifest starts
the DRBD service in order to perform necessary config steps before
SM is launched. During shutdown, systemd tries to stop the DRBD
service ahead of SM, but because it is still in use, there are a
number of DRBD state change failures reported on the console.
This update adds After=drbd.service to the sm.service config file
to ensure SM is shutdown first, avoiding these failures.
Signed-off-by: Don Penney <firstname.lastname@example.org>