Ops Center has a backup and recovery feature for the Enterprise Controller - you can save the current EC state as a backup file, and restore the EC to that state using the file. It's an important feature, but I've seen a few folks asking for guidelines about how to use it. Every site is different, but here are some broad guidelines that we recommend:
Some folks have also asked if there's a good way to test the backup and recovery procedure, to make sure it's working. Well, there's really only one way to do it - do an EC backup, and also backup or clone the file systems. Then, uninstall and reinstall the EC, restore from the backup, and make sure that everything looks right.
Take a look at the Backup and Recovery chapter for more information about how to perform a backup.