The way in which you backup your Broker Server depends on whether it uses separate or combined queue storage sessions.
If your Broker Server uses separate storage sessions, you can use the server_conf_backup utility to perform the backup as described in
Backing Up a Separate Storage
Configuration.
If your Broker Server uses a combined storage session, you must use the file system's copy command to perform the backup as described in
Backing Up a Combined Storage
Configuration.