Synology DiskStation Cheat Sheet
Bonus for Synology DiskStation Cheat Sheet Megapost
Setting up your Synology
BTRFS - These NAS units can run BTRFS file system. Unfortunately BTRFS can be troublesome and quirky. And when it has an issue, it can be a real headache to attempt a repair.
Official Synology Compatibility List - Make sure the hard drives you install in your diskstation are on the official compatibility list. If not, you can run the risk that support will not help if you run into issues.