We use SRDF replication here, and the fd-srdf script provided with the SRDF agent only copies over a small percentage of the resources in our service groups (no zones, no IPs, no Oracle resources, etc). I modified it to grab all of these things and copy them over. The special things about this script is that it changes all the disk groups and mounts to diskgroup_fd resources for the names and mount points for a firedrill service group. Helps if you have >50 mount points like me.