Backups
Your database is dumped every six hours into your home directory, and the entire server is backed up every night. All the server disks are on RAID-1.
However, there are no incremental backups (other than the database dumps), so anything else is up to you. I can't say this strongly enough: even though Gypsy Hosting's setup should be pretty secure, you shouldn't trust it, and you should backup somewhere else Just In Case™.