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Intel 750 NVMe 400GB U.2 SSD Bootable RAID 0 Report

By: Jon Coulter | RAID in Storage | Posted: Apr 12, 2016 1:08 pm

Moderate Workload Model

 

We categorize these tests as indicative of a moderate workload environment.

 

PCMark Vantage - Hard Disk Tests

 

Version and / or Patch Used: 1.2.0.0

 

The reason we like PCMark Vantage is because the recorded traces are played back without system stops. What we see is the raw performance of the drive. This allows us to see a marked difference between scoring that other trace-based benchmarks do not exhibit. An example of a marked difference in scoring on the same drive would be empty vs. filled vs. steady state.

 

We run Vantage three ways. The first run is with the OS drive 75% full to simulate a lightly used OS volume filled with data to an amount we feel is common for most users. The second run is with the OS volume written into a "Steady State" utilizing SNIA's guidelines. Steady state testing simulates a drives performance similar to that of a drive that been subjected to consumer workloads for extensive amounts of time. The third run is a Vantage HDD test with the test drive attached as an empty secondary storage device.

 

OS Volume 75% Full - Lightly Used

 

intel-750-nvme-400gb-2-ssd-bootable-raid-report_26

 

 

OS Volume 75% Full - Steady State

 

intel-750-nvme-400gb-2-ssd-bootable-raid-report_27

 

Secondary Volume Empty - FOB

 

intel-750-nvme-400gb-2-ssd-bootable-raid-report_28

 

There's a big difference between an empty drive, one that's 75% full/used, and one that's in a steady state.

 

intel-750-nvme-400gb-2-ssd-bootable-raid-report_29

 

The important scores to pay attention to are "OS Volume Steady State" and "OS Volume 75% full." These two categories are most important because they are indicative of typical of consumer user states. When a drive is in a steady state, it means garbage collection is running at the same time it's reading/writing. This is exactly why we focus on steady state performance.

 

We observe a whopping 40% increase in steady-state performance by going from a single 750 to a two drive array. The 950 Pro arrays still win, but the real-world advantage of an NVMe array over a single NVMe SSD is on full display.

 

 

PCMark 7 - System Storage

 

Version and / or Patch Used: 1.4.0

 

We will look to Raw System Storage scoring for evaluation because it's done without system stops and, therefore, allows us to see significant scoring differences between drives.

 

OS Volume 75% Full - Lightly Used

 

intel-750-nvme-400gb-2-ssd-bootable-raid-report_30

 

intel-750-nvme-400gb-2-ssd-bootable-raid-report_31

 

PCMark 7 is showing a scoring increase of 62% for a dual 750 array over a single 750. This backs up what we saw from Vantage.

 

 

PCMark 8 - Storage Bandwidth

 

Version and / or Patch Used: 2.5.419

 

We use PCMark 8 Storage benchmark to test the performance of SSDs, HDDs, and hybrid drives with traces recorded from Adobe Creative Suite, Microsoft Office, and a selection of popular games. You can test the system drive or any other recognized storage device, including local external drives. Unlike synthetic storage tests, the PCMark 8 Storage benchmark highlights real-world performance differences between storage devices.

 

OS Volume 75% Full - Lightly Used

 

intel-750-nvme-400gb-2-ssd-bootable-raid-report_32

 

intel-750-nvme-400gb-2-ssd-bootable-raid-report_33

 

PCMark 8 is the most intensive moderate workload simulation we run. Although not shown on this chart, a single 950 Pro managed to outperform a dual 950 Pro array with this test which ran contrary to all of our other results. This is not happening with our 750 array. The 750 array outperforms a single drive by a significant margin.

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