I will test the TS-S402 in comparison with a Synology DS-207+. I guess the latter is a good model for comparison as it is designed for two disks, too, and employs a similar processor. The only considerable hardware difference is the amount of system memory: the DS-207+ is equipped with 128 megabytes.
To check out the performance of the disk subsystem of the TS-S402 I will use a new benchmark from Intel developed especially for NASes. It is called NAS Performance Toolkit and allows benchmarking a NAS under real-life conditions. With NASPT you can launch a set of NAS usage scenarios with a click of one button, which is very handy. The test can be launched in single-run or batch mode (in the latter mode the test is performed several times and the results are averaged).
This is the equipment I will use for this test session:
- TRENDnet TS-S402
- Synology DS207+
- Category 5e Ethernet cables
- Desktop PC (X6800/4GB/Gigabit Ethernet/Windows XP SP2)
- Two Seagate Barracuda 7200.10 hard disk drives (250GB, SATA-2)
- D-Link DIR-655 router (Gigabit Ethernet)
- NAS Performance Toolkit
- FlashFXP FTP-client
So, first I run NASPT to check out the performance of the SMB protocol, i.e. when the NAS is used as a networked disk. I will use all the scenarios available in NASPT 1.7, running tests in batch mode. The names of the tests are quite self-explanatory.
Each RAID configuration of the TS-S402 will be tested in ordinary mode and under additional load in the way of torrents being downloaded in parallel with NASPT. I will connect the NASes through a router for that.
First I will launch the test without downloading torrents in order to make sure that the router is not a bottleneck.
The results are somewhat unexpected. Although the NASes have almost identical processors, the TS-S402 comes with only one fourth of the memory installed in the DS-207+, so I had expected a bigger difference in their performance. However, the NAS from TRENDnet even outperformed its opponent in the Office Productivity test, even though the DS-207+ remained the leader in the main tests such as copying files and video playback. Thus, the TS-S402 is very close in performance to one of the best home-oriented models available today.
The next test is about the integrated FTP server available in both NAS devices. FTP remains an important data-transfer protocol and I will measure the data-transfer speed for the internal HDD only because the TS-S402 doesn’t allow to open FTP access to USB drives connected to it. I will upload and download files with FlashXFP and mark the average download speed reported by the program in the server connection log. The following content types are used: a 3.8GB image of a DVD (L), a 200MB folder with MP3 files (M), and a 200MB folder with photographs (S).
The results of the two NASes differ more in this test, yet the TS-S402 delivers good performance anyway. It is only in the test of uploading files to the NAS’s disk that the TS-S402 looks like a good entry-level product rather than a top-end solution.
So, when it comes to performance, the TS-S402 is as good as midrange or even better products.