Version and / or Patch Used: 2.47
ATTO is a timeless benchmark used to provide manufacturers with data used for marketing storage products.
Even as our OS volume at 75% full, the DC P3700 has no problem hitting advertised sequential speeds. Write speeds ramp up quickly, read speeds start coming on strong at 128k transfers.
All of our arrays run stronger than the DC P3700 until we exceed 4k transfer sizes. By 8k transfers, our 4-6 drive arrays have maxed out the available bandwidth of our Lynx Point chipset equipped motherboard. The DC P3700 has no such bandwidth limitation and is able to reach its advertised sequential write speed by 8MB transfers.
Again, our arrays are able to out-perform the DC P3700 with smaller file transfer sizes. Bandwidth limitations level off our arrays performance after 128k transfers. The DC P3700 continues climbing and essentially hits its advertised sequential read speed by 1MB transfer sizes.
Anvil Storage Utilities
Version and / or Patch Used: RC6
Anvil's Storage Utilities is a storage benchmark designed to measure the storage performance of SSDs. The Standard Storage Benchmark performs a series of tests; you can run a full test or just the read or write test, or you can run a single test, i.e. 4k QD16.
Killer score, better than any of our arrays can achieve. At least when our arrays are running on Windows 8.1 OS.
Read IOPS through Queue Depth Scale
Normally we only test to a queue depth of 32 because that's the limits of the SATA protocol. The DC P3700 is just starting to get warmed up at QD32. This as expected, is a dominating performance for our NVMe SSD. The DC P3700 is able to easily outperform all of our arrays at every QD and provides more than double the IOPS of our 6-drive array hitting 475,000 IOPS at QD128.
Write IOPS through Queue Scale
At low QD levels, all of our arrays deliver superior write performance to the DC P3700. Windows 8 takes the legs out from under out arrays over QD4 causing a performance drop of nearly 100,000 IOPS as we go from QD4 to QD8.
Windows 8, 8.1 and Server 2012 data flushing compliance causes our RST powered arrays to choke on themselves at queue depths above 4. Windows 7 does not have the same issue and this is the reason Windows 7, Server 2008 both have superior SATA based storage performance in comparison to Windows 8, 8.1, and Server 2012. At high QD levels, the DC P3700 is delivering double the performance of our arrays.
Version and / or Patch Used: 3.0 Technical Preview
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.
Sequential write performance is topping out at factory specification. Single QD 4K write performance is less than half the speed we can get from our arrays. 4K read performance at QD1-4 is superior to any array we've tested
The DC P3700 is delivering read performance superior to all of our arrays with the exception of 4K QD:32.
SATA bandwidth limitations are holding back our array's write performance. The DC P3700 has superior sequential write performance, but as we saw with our Anvil's IOPS testing, our arrays pump out more than double the 4k write performance of the DC P3700 at 4k QD1. Most consumer-based workloads do not exceed 4k QD1-4 99% of the time, so this is an indication that a SATA array may be capable of delivering better performance than the DC P3700 in a consumer environment in write intensive scenarios. PCMark 8 Extended testing is where we will see this play out.
Version and / or Patch Used: 1.7.4739.38088
AS SSD determines the performance of Solid-State Drives (SSD). The tool contains four synthetic as well as three practice tests. The synthetic tests are to determine the sequential and random read and write performance of the SSD.
Sequential read performance is much better when testing with AS-SSD than with CDM. Curiously enough, we see the same thing from the 730. The DC P3700's 4k-64 thread performance is delivering 400,000 read IOPS and 330,000 write IOPS.
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- Page 1 [Introduction]
- Page 2 [Specifications, Test System Setup, Drive Properties, Pricing and Availability]
- Page 3 [Synthetic Benchmarks - ATTO, Anvil Storage Utilities, CrystalDiskMark & AS SSD]
- Page 4 [Benchmarks (Trace Based OS Volume) - PCMark Vantage, PCMark 7 & PCMark 8]
- Page 5 [Benchmarks (Secondary Volume) - Disk Response & Transfer Rates]
- Page 6 [Benchmarks (Secondary Volume) - PCMark 8 Extended]
- Page 7 [Final Thoughts]
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