Like every other website on the planet, SmallNetBuilder uses cookies. Our cookies track login status, but we only allow admins to log in anyway, so those don't apply to you. Any other cookies you pick up during your visit come from advertisers, which we don't control.
If you continue to use the site, you agree to tolerate our use of cookies. Thank you!

Router Charts

Click for Router Charts

Router Ranker

Click for Router Ranker

NAS Charts

Click for NAS Charts

NAS Ranker

Click for NAS Ranker

More Tools

Click for More Tools

NAS Reviews

QNAP TS-559 ProWe've retested the QNAP TS-559 Pro with new firmware and updated the NAS Charts.

QNAP found that our previous test results we much lower than their internal tests using similar test methods. After investigation, they found that write cache was not enabled on our review sample.

QNAP has enabled write caching for EXT4 volumes since they made EXT4 the default for RAID volumes. But a bug in the 3.2.6 Build 0423T firmware we used for testing did not properly enable it by default. So QNAP released 3.2.7 Build 0525T firmware and requested a retest, which we performed.

The iozone benchmark plots for the retest are shown below, along with the original results in the graphic below it.

TS-559 Pro Throughput vs. file size - retest

TS-559 Pro Throughput vs. file size - retest

The main difference in results is a boost in throughput at 512 MB and larger file sizes. But since we don't include anything over 125 MB/s in our calculation, the new charted average write performances include only two data points (2 GB and 4 GB).

TS-559 Pro Throughput vs. file size - original test

TS-559 Pro Throughput vs. file size - original test

Average RAID 5 write performance using a Gigabit Ethernet connection now averages 105.5 MB/s (vs. 85.2 MB/s before) for file sizes between 32 MB and 4 GB, with cached behavior not included in the average calculation. Average RAID 5 read performance is still significantly lower, but improved, measuring 74.1 MB/s (vs. 65.4 MB/s). So the TS-559 Pro now ranks above the TS-459 Pro in the RAID 5 charts.

RAID 5 File copy performance using our Vista SP1-based test now show the TS-559 Pro faster than the TS-459 Pro, with 92.1 MB/s (vs. 66.3 MB/s before) write speed and 95.3 MB/s (vs. 71.9 MB/s before) read.

Use the NAS Charts to further explore the TS-559 Pro's performance and compare it to other products.

More NAS

Wi-Fi System Tools
Check out our Wi-Fi System Charts, Ranker and Finder!

Support Us!

If you like what we do and want to thank us, just buy something on Amazon. We'll get a small commission on anything you buy. Thanks!

Over In The Forums

I have tried the rest now the best? A few other people had various recommendations and nothing hit home. I currently utilize an off the shelf Netgear ...
Hey guys:Curious about this repeating error in my logs... Any ideas how to address this if its an issue?Oct 17 16:59:58 ntpclient: gethostby*.getanswe...
Hello everyone,I currently have an ASUS AC68U which gives pretty much full coverage to my whole home, but I have experienced instability in my living ...
I have a number of routers running the Merlin firmware (384.7 lately.) There is 1 OpenVPN server enabled on each of those. Local networks are running ...
I'm having a hard time deciding which firmware I should upgrade to for my RT-N66R. Which one should I use? It still has the Asus 3.0.0.4.380_3831 firm...

Don't Miss These

  • 1
  • 2
  • 3