QNAP is a well known player in the SMB / SOHO NAS market. This market is a highly competitive one with many players like Synology, Thecus, Netgear, LaCie, Sagate and Western Digital. Consumers with a necessity to store and backup their home media collection also form a small segment of this market.

We have been playing around with the QNAP TS-659 Pro II unit over the last month or so. Based on the Intel Atom D525 platform, it has 6 bays and dual GbE ports, making it a candidate for the high end SMB market. The Pro II units introduced this year have a couple of USB 3.0 ports which the versions from the last year lacked.

The purpose of any NAS is to serve as a centralized repository for data while also having some sort of redundancy built in. The redundancy helps in data recovery, in case of media failure of any other unforeseen circumstances. In addition to the standard RAID levels, some companies also offer custom redundancy solutions. The OS on the NAS also varies across vendors.

The QNAP TS-659 Pro II runs a Linux variant (Turbo NAS v3.5 was used in our benchmarks) which can be managed through a web browser. Internally, the dual core Atom D525 runs at 1.8 GHz and has four execution threads, thanks to the hyper threading feature. There is 1 GB of RAM inbuilt, but it is possible for the end user to increase this. The dual GbE ports can be configured in multiple ways to provide load balancing or fault tolerance or just dynamically aggregating the bandwidth.

Let us conclude this section with a look at the marketing specs from QNAP:


Unboxing Impressions
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  • bobbozzo - Tuesday, September 20, 2011 - link

    So can you add more drives to the RAID using eSATA? How many?

  • ganeshts - Tuesday, September 20, 2011 - link

    It supports port multipliers in the sense that you can configure share folders on it. However, I don't think RAID expansion is supported: http://forum.qnap.com/viewtopic.php?p=158110 : Note that I am unable to test this out right now because the review unit is being put under stress for one of the bugs reported elsewhere in this comments section.
  • beginner99 - Tuesday, September 20, 2011 - link

    IMHO only makes sense for business use. Only advantage to a DIY build is the small case with hot-swap. Have not seen such a case anywhere for a DIY build.
    But besides the case size you can get better hardware for half the price with DIY.

    I'm quite astonished by the 72 watt. Do hdd's need that much power?
  • jmelgaard - Tuesday, September 20, 2011 - link

    I Disagree that the only advantage is the small case, a DIY solution might not even be possible for some consumers as they simply won't know "how to" build your own, these boxes has a high level of convenience to them and putting together components to hit the same low power consumption could be a picky task.

    But ofc. it's your opinion so I can't but say mine is different.

    The drives is rated at 7.4 Watts typical under read/write according to specs the Processor is according to Intel rated around 13 Watts.. that sums to 57,4 Watts... Add the rest of the components and I think it sounds fairly realistic...
  • DanNeely - Tuesday, September 20, 2011 - link

    Most of the remainder is probably PSU inefficiency. Assuming 80% efficiency you get 71W of power in for the components you listed.
  • asakharov - Tuesday, September 20, 2011 - link

    Not long ago I had a chance to test I/O performance of QNAP TS-459 Pro II (the same generation as at article) and older TS-439 Pro II. Looks like not my, not TS-659 Pro II could really use Ethernet load balancing - no I/O performance change according to NASPT. All available Ethernet teaming type was tested. All disks are in RAID0
    The best I/O performance I received with one Ethernet connected to NAS.
    The simplest is the fastest?
  • meesterlars - Tuesday, September 20, 2011 - link

    I would urge you, Anand, to consider making readers of your site aware of an undisclosed but critical bug affecting QNAPs with newer firmware versions; it seems a certain combination of free space and number of files stored on the NAS can cause anything from appalling performance to data corruption and eventually data loss.

    The following link documents the failure of a 10TB storage node.


    According to their forums, QNAP are investigating...

    It seems we too might be showing symptoms of this bug at one of our customer's installations where we had two freezes last week alone, requiring customer interaction (i.e., "pull power, please"). Not ideal.
  • rancid-lemon - Tuesday, September 20, 2011 - link

    Ouch, I've just read through this thread and seems to be a show stopper.

    I was looking at buying a QNAP device but this may have to go on hold.

    There does seem to be some qnap support on the subject but that haven't revealed any details of a fix, time frame to solution or anything. Plus they seem to be no closer to a solution (or indeed know generally what is going on with their own system!)

    Thanks for the heads up!
  • ganeshts - Tuesday, September 20, 2011 - link

    Thanks for posting this. I am trying to recreate the issue in the unit we have, and if I am successful in doing it, I will post an addendum to the review.
  • rancid-lemon - Tuesday, September 20, 2011 - link

    Just so you are aware, having read the entire thread it seems to affect larger hard drives, 2TB+. I notice that your review system was using 1TB drives.
    The issue may still occur with 1TB drives though since according to that thread there seems to be an amount of uncertainty involved as to the cause.

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