Recently we had the chance to test a Thecus NAS Server. I had not heard of the name Thecus personally, but the other guys knew it.

So I was the best guinea pig to be thrown at it. I had in mind I would test and review a small NAS box, until I saw the box that arrived. The Thecus N8850 dimensions (HxWxD) are 380.4 x 235 x 282.6 (mm) It is very smoothly finished and looks real nice. It was like unwrapping a Ferrari. In my opinion the design is beautifully executed. With a touch panel on the front and a touch power button also on the front. When powering on the Thecus the white leds on the front panel light up behind the vertical row of holes. An OLED menu is displayed on the top screen.

It is an Enterprise NAS in a Tower with 8-bays to fill. On the front there are four indicators for the several LAN connections. During the test I had two available from the on board LAN ports. So you will see LAN1 and LAN2 light up on the photo. Through Linking Aggregation I bundled both 1GbE ports, but more on that later on.

Inside the box that arrived the following bits and pieces where found:

Package Contents

  • Accessory Bag with keys
  • Ethernet Cable 2m
  • Power Cord
  • Acronis True Image DVD
  • Universal CD
  • Twonky Media Server CD
  • Several Papers (Warranty Card, QIG)

Through the built in PCI-e slot, business users can add a 10G Ethernet Adapter for lighting fast transfer speeds, or a USB 3.0 Adapter Card to enjoy next-generation connectivity.

The specifications of the Thecus N8850 are:

  • CPU: Intel® Core™ i3 2120 3.3GHz;
  • System Memory: 4GB DDR3 ;
  • Disks: 8 x SATA for internal;
  • OLED: Displays system status and information (Multilingual)
  • Compatibility: See supported HDDs;
  • LAN: 2x 1Gbps ports (RJ-45×2: Intel 82574L 10/100/1000 BASE-TX Auto MDI/MDI-X);
  • LAN: 10GbE PCI-e card (Optional)
  • Power Supply: Single 400W power supply (80plus)
  • RAID Modes: RAID 0, 1, 5, 6, 10, 50, 60 and JBOB

For a complete spec list check here.

After booting up the system, I could login easily without using the bundled CD. The menus are easy to follow. After entering the correct network settings, where I linked LAN1 and 2 together with linking aggregation to a 2Gbps channel, I needed to reboot the system. It takes about 42 seconds to reboot and get the services back to life, It takes a bit longer before you can login again, but I like it that the services are being restored first.

I loaded two 500GB Seagate Barracuda 7200 without paying attention that there might be a HCL drive list. After loading the disks and creating a RAID 1 set, the nice white leds turned blinking deep RED and the Thecus started beeping. It turned out that one of the disks was not 100% anymore. So I got three Seagate Barracuda ST1000DM003 disks which I placed in a RAID1 set with a spare disk for testing.

Copying to and from the box went very smoothly, I was streaming two streams with files to the NAS. One from my Windows 7 Laptop and 1 from my Windows 2008 R2 server running on a Windows Vista desktop with VMware Workstation 8. The laptop got a throughput of a whopping 97MB/s where the Windows 2008 server at the same time had a throughput of 91MB/s. I must say I was stunned. I then tested a media stream of a movie through HDMI to my Samsung TV while stressing the Thecus with reads, writes and deletions. The movie played without any hickups.

After setting up the Thecus with NFS, the ESXi server connected easily and I could make my first datastore. With a storage vMotion several VMs where placed on the NFS store.

The Thecus N8850 has a lot of features like: iTunes Server, Download Manager, Print Server, Backup Server, Storage Server for multiple VMs, Piczza!™ Web Server (via module), Media Server, iSCSI Thin-Provisioning, iOS/Android Connectivity, Multiple File Systems, Multiple RAID , Acronis True Image, USB 3.0 Connectivity , 10GbE Ready, HDMI Output , Touch Panel, Cloud Backup and many more.

You can also manage the Thecus through an iPhone or Android phone with the Dashboard 2.0 App.


If you want to expand the services the Thecus box delivers, load up some modules! At the moment the following modules are available for integration:

Access Guard module, Dashboard Module, Dropbox module, ElephantDrive module, HiSSH module, IP CAM module, Local Display module, Mail server module, MySQL module, NZB module, Piczza! module, Raid Replication Module, Rsync backup module, T-OnTheGo and Transcoding service Module, Transmission (BT Client) Module, Twonky media server module, USB & eSATA schedule backup module, VirusScan module (McAfee Antivirus ), Web Server module, WebDisk module. As you can see there are lots of modules you can load to expand the possibilities of the Thecus box.

Conclusion: The Thecus TopTower N8850 is a very complete enterprise grade NAS with tons of features, bundled in a very nicely done design which blends in any office or living room. The price is a bit steep but on the other hand you will get a very complete device for it!