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Toshiba Q Series Pro 256GB RAID 0 SSD Report - Benchmarks - CrystalDiskMark

By: Jon Coulter | RAID in Storage | Posted: Jan 16, 2014 2:00 pm



Version and / or Patch Used: 3.0 Technical Preview

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CrystalDiskMark is disk benchmark software that allows us to benchmark 4K, and 4K queue depths with accuracy.


Note: Crystal Disk Mark 3.0 Technical Preview was used for these tests, since it offers the ability to measure native command queuing at 4 and 32.




Read performance looks good across the board; exceptional in fact, both sequentially, and at 4K QD 32. Write performance looks more like a single drive than an array, and is the worst that I can remember seeing. Keep in mind that this odd write performance will not manifest itself when you test in a FOB state.




As we've seen so far, read performance is very good; although, 4K QD 1 performance is one of the lowest we've seen.




Our array's performance looks more like a single drive's performance on this chart. Earlier, I stated that the Q Series Pro has managed to contradict some of our own preconceived notions about an SSD's synthetic performance indicators, and that's what we're going to see from this point forward. Up to this point, our drive/array's write performance has looked very odd to say the least. Based on what we've seen so far (and my own preconceived notions of performance indicators), I would think the Q Series Pro is going to be destroyed by the remaining tests; the tests that matter.

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