Benchmarks - Multi-Client Test
The Intel NAS Performance Tool (NASPT) is an excellent way to determine NAS performance in a single user environment. Any review that only uses NASPT assumes that only a single computer will access the target NAS at one time. We took issue with this method of testing and spent over a year designing, building, programming and finally validating the TweakTown Multi-Client Test.
The test uses Microsoft Office data recorded to traces and played back to the NAS from up to 120 client Windows 7 installations (clients). We record total throughput of all clients and average response time per client.
Over time we'll populate the two multi-client charts with several NAS products from a span of categories. The products range from a dual Xeon server with 2x 10GbE to a 2-bay NAS with a single gigabit Ethernet connection. The products will fall into their performance categories based on performance and not marketing material or opinion.
The Thecus N4510U hits its stride at 24 clients and the same throughput performance is seen all the way to 80 clients. I found it odd that the N4510U didn't peak and then drop off like many of the other NAS on the chart. I think the amount of RAM in the NAS, 2x more than most of the others on the chart, allows the NAS to ride the peak performance longer than most of the others.
Once we get past 80 clients, the NAS drops off in throughput and falls in line with many of the other smaller NAS products. The extended range though is important and shows us that the N4510U has a lot of potential for an 80-person office using the NAS at the same time.
Looking at the latency, again we see excellent performance up to 80 users. At 88 users the N4510U spikes the latency, but until that point, the N450U outperforms several systems on the chart, most costing considerably more.