Concluding Remarks

The updates to our testbed do come with a power penalty because of the addition of three Intel ESA I-340 NICs and the OCZ RevoDrive Hybrid.Using Visible Energy's UFO Power Center, we obtained some power consumption numbers:

2012 AnandTech NAS Testbed Power Consumption
Idle 146.25 W
Single VM + Intel NASPT Run 157.55 W
25 VMs + IOMeter 128K Sequential Reads 179.61 W
25 VMs + IOMeter 128K Sequential Reads and Writes 164.76 W
25 VMs + IOMeter Random 8K / 60% Random 4K 161.42 W

The workstation didn't consume more than 180 W at any point in our workload. This translates to less than 7.2 W per client, bettering the power density of 13 W that we achieved with our earlier configuration. The Netgear ProSafe GSM7352S consumed around 74 W in the testbed at all times. Adding 10 GbE clients is likely to drive this number higher.

We have also been working on creating IOMeter workloads corresponding to typical home usage scenarios (for evaluating 2 to 6-bay NAS units meant for home users serving media and acting as a backup target). More details will be forthcoming in our next home NAS review.

We conclude the piece with a table summarizing the updated build.

2012 AnandTech NAS Testbed Configuration
Motherboard Asus Z9PE-D8 WS Dual LGA2011 SSI-EEB
CPU 2 x Intel Xeon E5-2630L
Coolers 2 x Dynatron R17
Memory G.Skill RipjawsZ F3-12800CL10Q2-64GBZL (8x8GB) CAS 10-10-10-30
OS Drive OCZ Technology Vertex 4 128GB
Secondary Drive OCZ Technology Vertex 4 128GB
Tertiary Drive OCZ RevoDrive Hybrid (1TB HDD + 100GB NAND)
Other Drives 12 x OCZ Technology Vertex 4 64GB (Offline in the Host OS)
Network Cards 6 x Intel ESA I-340 Quad-GbE Port Network Adapter
Chassis SilverStoneTek Raven RV03
PSU SilverStoneTek Strider Plus Gold Evoluion 850W
OS Windows Server 2008 R2
Network Switch Netgear ProSafe GSM7352S-200

Thank You!

We thank the following companies for making our NAS testbed build a reality:

Thecus N4800: Testbed in Action
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  • GullLars - Saturday, December 1, 2012 - link

    This was a very interresting read, but why the revodrive hybrid? With the cost of the entire system, why not just go for a Revodrive 3 X2 960GB? That massively reduce VM boot times, and eliminate or push forward any IO bottlenecks the 13 VMs sharing the drive may encounter.

    This once again reminds me that the industry has been way to slow to make 10GbE avalible to the masses, or even powerusers and enthusiasts. I've been running SSD RAIDs for years now, and i'd like to move my HDD RAID to a fileserver, but the bottleneck from GbE has kept me from it. It would also be awesome for LANs, even if the switch only had 1-2 10GbE ports.
  • batguiide - Sunday, December 9, 2012 - link

    Thanks for these tips! I love the tip about checking where the model is in the store. I just finished reading another article that has some more research based tips about making sure you get the best big ticket items for you, which I also found useful. website:[socanpower,ca]
  • Hrel - Friday, December 14, 2012 - link

    Some reviews on those newer NAS units that are based on ARM would be GREAT! I'm extremely cautious of how good that could work. But then again my current NAS is running a Pentium 4 540 I think? 3GHZ hyperthreaded. Works, but not the fastest thing. The CPU is clearly the bottleneck.

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