Taking a backup of your object store instance is fairly simple. Simply, copy your coronerd.db and coronerd.conf files (typically in /etc/coronerd/ ) and your relevant data directories (specified in the disks array of your coronerd.conf ).
It is possible to make a remote copy with tools rsync . If the object store is not stopped, the database can be copied while in a dirty state (this is not true of actual objects). This is not a problem and can be rectified using the morgue repair command.