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Samsung 950 PRO SSD RAID-0 Performance

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AS-SSD Benchmark

Alex Schepeljanski of Alex Intelligent Software develops the free AS SSD Benchmark utility for testing storage devices. The AS SSD Benchmark tests sequential read and write speeds, input/output operational performance, and response times.

AS-SSD Benchmark uses compressed data, so sequential file transfer speeds may be reported lower than with other tools using uncompressed data. For this reason, we will concentrate on the operational IOPS performance in this section.

The results of this test are something you should get used to: transfer rates beyond anything you’re likely to have seen before. With a sequential read rate of over 2.8 gigabytes per second, and a sequential write just barely slower at 2.5 gigabytes per second, the performance of our Samsung 950 PRO RAID-0 array is more than five times faster than we’ve seen from the very best SATA SSDs.

Samsung-950-PRO-RAID

Samsung 950 PRO RAID Results

While hammering the drive with 64 requests at once, the results aren’t quite as stellar: a meager 1346MB/s read and 768MB/s write…but as you can see from the chart below they’re still far beyond any SATA SSD. Compared to a single Samsung 950 PRO, write performance has roughly doubled, but reads are only somewhat better.

AS-SSD-Benchmark_Results

In the next section, Benchmark Reviews tests transfer rates using ATTO Disk Benchmark.


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7 comments

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  1. Eric

    Question: Is RAID-0 SSDs worth it?
    Answer: Nope!

    1. David Ramsey

      Not for most people. Still, there are situations where yes, you could indeed use that kind of speed.

  2. David Musoke

    I have this drive configured as a 512GB x2 RAID-0 array.

    1. How can I update its driver from Samsung as it keeps on saying:

    “Samsung NVM Express Drive is not connected. Please connect the device and retry”.

    In fact no software from Samsung recognize my SSD RAID-0 array. What am I supposed to do to fix this? Samsung has not responded to my query…

    2. Can I convert from my RAID-0 array to a single 1TB drive without losing data? If so, how can I do it?
    The speed data you’ve taken there isn’t much difference in performance…

    Thanks,
    David

    1. David Ramsey

      1. Sorry, I don’t know of any way to get the Samsung software to recognize the RAID.

      2. No, there’s no way to convert your RAID 0 array “in place” to a non-RAID 1TB drive. You’ll have to back the drive’s contents up, break the array, created the spanned drive (if your motherboard BIOS supports that) and restore it.

      But why bother? The only thing you’d accomplish is making your 1TB volume somewhat slower. I’m pretty sure if the Samsung software won’t recognize a RAID 0 volume, it won’t recognize a spanned volume either.

  3. Oscar Alejandro Guignant

    Hi, the results obtained with CrystalDiskMark (3286MB/s reads and 2680MB/s writes) are on a software or hardware raid?
    I create a Raid 0 with Intel Raid Controller and not get to those numbers with CrystalDiskMark.

    1. David Ramsey

      Oscar, I created the RAID with the built-in software– i.e. Intel– on the MSI motherboard, which is equipped with two m.2 slots.

  4. Keith

    I recommend using an Asrock Extreme 7+ motherboard with Windows 10 on a flash drive and the latest Intel Rapid Storage Technology drivers on another flash drive. This motherboard will allow you to create a RAID0 array on say thee Samsung 512GB m.2 drives. There are guides on the internet on how to setup the BIOS and go through the required steps.

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