If there's one feature on the DS209 that almost went unnoticed, it's the Recycle Bin. Although some people might find it unnecessary, anybody who's ever accidentally deleted a file on an external hard drive or even a NAS system will almost certainly disagree. If you don't turn this feature on, then any file you delete is gone for good. Make sure you empty it on occasion.
The Synology DS209 is one of our favourite NAS systems. Just like the DS207+, it has two bays, but slightly different hardware: this model has a 1.2 GHz CPU with 256 MB of RAM and a 70 mm fan to keep the whole thing cool.
The case is in white plastic, with some nice details that give it a stylish appearance. The DS209 won't look out of place on your desktop or in your living room.
The configuration utility is simple and intuitive. Despite the wide range of features available, the interface is easy to navigate, even for a beginner.
As well as working as a file server, the DS09 offers several other useful features. It can run a web server with PHP and SQL, for instance, which is perfect for hosting your own website.
If you connect a printer to one of its USB ports, it can also act as a network print server, which is great if you only have one printer but several computers.
Synology includes the Audio Station and Photo Station 3 software with the DS209. These tools allow you to share music, photos and videos with several users in the form of a blog that's accessible over the Internet. Along with that, there's a fully-blown multimedia server that covers music, photos and videos, which gives DLNA-compatible devices the ability to launch a photo or video slideshow of the content on your DS209 over the network.
As well as a Gigabit Ethernet connection, there are also three USB ports. That means you can connect external hard drives that you would like to back up, or to serve as extra storage space if your NAS system is beginning to get too full.
To finish with the features on the DS209, it also includes Emule and BitTorrent clients, so you can keep on using these peer-to-peer services without needing to leave your computer.
Speeds over USB, CIFS/SMB and FTP
Like the majority of NAS systems, the speeds over USB were disappointing. We measured 14.9 MB/sec. and 14.6 MB/sec. for writing and reading data respectively. Note that the DS209 doesn't offer eSATA.
Synology beat all of its competitors copying files over a Windows network. When configured in RAID 1, it reached speeds of 23.7 MB/sec. and 41.2 MB/sec. for writing and reading respectively. Moving to RAID 0 provoked a slight improvement in performance, with speeds rising to 25.4 MB/sec. for writing and 42.8 MB/sec. for reading.
Over FTP, the speeds were even more impressive. Configured as a RAID 1 array, the DS209 obtained speeds of 23.5 MB/sec. and 43.9 MB/sec. As you can see in the graph, it sailed out ahead of the Qnap TS-219P with nothing short of 24.6 MB/sec. for writing data and 49.7 MB/sec. for reading it.
Noise and energy consumption
As well as having a stylish finish, the DS209 system is quiet, too. It's almost impossible to hear the fan turning.
We really liked everything about the Synology DS209. It has excellent speeds, a wide range of extra features and a very rich, easy-to-use interface.