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Samsung 950 PRO SSD RAID-0 Performance

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CrystalDiskMark 3.0 Tests

CrystalDiskMark 3.0 is a file transfer and operational bandwidth benchmark tool from Crystal Dew World that offers performance transfer speed results using sequential, 512KB random, and 4KB random samples. For our test results chart below, the 4KB 32-Queue Depth read and write performance was measured using a 1000MB space. CrystalDiskMark requires that an active partition be set on the drive being tested, and all drives are formatted with NTFS on the Intel Z170 chipset configured to use AHCI-mode. Benchmark Reviews uses CrystalDiskMark to illustrate operational IOPS performance with multiple threads. In addition to our other tests, this benchmark allows us to determine operational bandwidth under heavy load.

CrystalDiskMark uses compressed data, so sequential file transfer speeds are reported lower than with other tools using uncompressed data. For this reason, we will concentrate on the operational IOPS performance in this section.

CrystalDiskMark 3.0 reports single-threaded sequential speeds reaching 3286MB/s reads and 2680MB/s writes. 4K tests at a queue depth of 32 produced 853MB/s read and 768MB/s write performance.
Samsung-950-PRO-RAID-0-CDM

The chart below summarizes 4K random transfer speeds with a command queue depth of 32. Again, read speeds are only a little better than a single Samsung 950 PRO, although write speeds almost double.

CrystalDiskMark-4K_Results

In the next section, we continue our testing using Iometer to measure input/output performance…


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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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