In addition to backing up the vCenter Hyperic database, you might want to back up other files in your server directory.

You can back up these additional files without having to first stop the vCenter Hyperic server.

conf/
bin/hq-server.sh
hqdb/data/postgresql.conf

The contents of these files are stable. Changes are infrequent after your vCenter Hyperic server is installed and configured. Back the files up following installation, and after making changes to the sever configuration.