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Performance - File Copy

Vista SP1 1000 Mbps RAID 5 file copy write results in Figure 10 show the NVX at the top of the chart just shy of 52 MB/s, which is filtered for only four-drive NASes.

1000 Mbps LAN Vista SP1 File Copy Write

Figure 10: 1000 Mbps LAN Vista SP1 File Copy Write

Figure 11 shows the 1000 Mbps RAID 5 File Copy read. The NVX's read speed approaches 100 MB/s, which clearly outperforms the other products in the comparison.

1000 Mbps LAN Vista SP1 File Copy read

Figure 11: 1000 Mbps LAN Vista SP1 File Copy Read

Use the NAS Charts to further explore performance.

iSCSI

Like the QNAP TS-639 Pro and other recently-tested NASes that support iSCSI, the NVX lets you create an iSCSI target (up to 8, actually) by allocating storage from the general XRAID-2 volume (Figure 12).

iSCSI volume creation

Figure 12: iSCSI volume creation

If you decide you need to expand the target or change to using CHAP authentication, you can do that too via the Expand and Modify buttons in Figure 13.

iSCSI volume created

Figure 13: iSCSI volume created

To test iSCSI performance, I allocated 10 GB of the NVX's XRAID-2 volume. I then configured the Windows iSCSI initiator on the NAS Testbed machine to connect to the NVX and ran my standard Vista SP1 filecopy test. Both machines connected via Gigabit Ethernet with no jumbo frames used. I measured 29.3 MB/s for write and 53.9 MB/s for read.

HD Tune Pro write benchmark plot in Figure 14 shows speed in MBytes per second, plotted across all sectors of the array. The average speed of 10 MB/s is significantly slower than the Vista SP1 filecopy test result.

HD Tune Pro Benchmark Write Test

Figure 14: HD Tune Pro Benchmark Write Test

The HDTune Pro Benchmark read results are shown in Figure 15. The average this time is 46 MB/s, still below the Vista SP1 filecopy results.

HD Tune Pro Benchmark Read Test

Figure 15: HD Tune Pro Benchmark Read Test

The HDTune File Benchmark test in Figure 16 writes and reads a test file of selectable size (I used the maximum 512 MB) using block sizes ranging from 0.5 KB to 8192 KB (x-axis). If we concentrate on the typically-used 64 KB block size, we can eyeball around 15 MB/s for write and 49 MB/s for read.

HD Tune Pro Benchmark Read Test

Figure 16: HD Tune Pro File Benchmark Read Write Test

Closing Thoughts

The NVX is an able successor to the NV+ in all ways except price. Even at the lowest online price of $1689, the 4TB RNDX4410 NVX is sure to cause sticker shock for many potential upgraders. The lowest price of entry into the NVX world as I write this is $1215 for the 2 TB RNDX4210. Considering that you can buy an RND4210 2 TB NV+ for a little more than half that, I guess you really will have to need the NVX's higher performance to justify that much of a jump!

Although ReadyNAS owners (and wannabes) would like NETGEAR to create a BYOD version of the NVX, as they did with the ReadyNAS Pro Pioneer, NETGEAR has told me that it's not in the cards—at least not anytime soon. But you will be able to continue to buy the NV+ for the time being, since NETGEAR is not discontinuing it yet.

But NETGEAR is going to find some sharp elbows from the competition, at least from a performance standpoint. If the test results from my QNAP TS-639 Pro are any indication, the BYOD four-bay TS-439 Pro may be a more compelling deal at only $800.

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