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Toshiba THNSNJ480PCS3 HK3R Enterprise SSD Review (Page 4)

Paul Alcorn | Sep 4, 2014 at 8:20 am CDT - 3 mins, 33 secs time to read this page
Rating: 90%Manufacturer: Toshiba

4k Random Read/Write

VIEW GALLERY - 64 IMAGES

We precondition the 480GB Toshiba HK3R THNSNJ480PCS3 for 9,000 seconds, or two and a half hours, receiving performance reports every second. We plot this data to illustrate the drives' descent into steady state.

This dual-axis chart consists of 18,000 data points, with the IOPS on the left and the latency on the right. The blue dots signify IOPS, and the grey dots are latency measurements during the test. We place latency data in a logarithmic scale to bring it into comparison range. The lines through the data scatter are the average during the test. This type of testing presents standard deviation and maximum/minimum I/O in a visual manner.

Note that the IOPS and latency figures are nearly mirror images of each other. This illustrated high-granularity testing can give our readers a good feel for latency distribution by viewing IOPS at one-second intervals. This should be in mind when viewing our test results below. This downward slope of performance only occurs during the first few hours of use, and we present precondition results only to confirm steady state convergence.

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Each level tested includes 300 data points (five minutes of one second reports) to illustrate performance variability. The line for each OIO depth represents the average speed reported during the five-minute interval. 4k random speed measurements are an important metric when comparing drive performance, as the hardest type of file access for any storage solution to master is small-file random. 4k random performance is a heavily marketed figure, and is one of the most sought-after performance specifications.

The Toshiba HK3R averages an impressive 83,266 IOPS at 256, second only to the Samsung 845DC EVO, which delivers 85,155 IOPS at 256 OIO (Outstanding I/O). The Micron M500DC averages 56,259 IOPS, and the Intel DC S3500 averages 57,769 IOPS. The 845 Series from Samsung is incredibly agile with random read data, but the Toshiba is right on its heels with comparable read performance.

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Our Latency vs. IOPS charts compare the amount of performance attained from each solution at specific latency measurements. Many applications have specific latency requirements. These charts present relevant metrics in an easy-to-read manner for readers who are familiar with their application requirements.

The HK3R tracks closely behind the 845DC EVO. The HK3R provides 83,000 IOPS at .1ms, the 845's deliver 85,000 IOPS, the DC S3700 provides 57,000 IOPS, and the M500 DC provides 56,000 IOPS.

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Garbage collection routines are more pronounced in heavy write workloads, leading to performance variability.

The HK3R averages 17,437 IOPS at 256 OIO, but much of this is due to significant variability that lands at much higher speeds. While the average beats the 845DC EVO average of 13,841 IOPS, the 845DC EVO has a much more consistent performance profile. The Micron M500DC stands head and shoulders above the competition in 4k random write workloads with 39,089 IOPS at 256 OIO.

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The Micron M500DC has the best lower overall latency in the write workload. The DC S3500 and Toshiba HK3R experience some turbulence under heavy load at 256 OIO.

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Our write percentage testing illustrates the varying performance of each solution with mixed workloads. The 100% column to the right is a pure 4k write workload, and 0% represents a pure 4k read workload.

The mixed workload performance exhibits the tight competition among many competitors in this class. The HK3R, DC S3500, and 8945DC EVO have similar performance profiles with heavier write workloads. The HK3R experiences some variability across the board.

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We record power consumption measurements during our precondition run. We calculate the stated average results after the device has settled into steady state during the last five minutes of the test.

The HK3R averages 3.85 watts, the 845DC EVO averages 3.55 watts, the M500DC averages 4.09 watts, and the DC S3500 averages 3.8 watts during the measurement window.

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IOPS-to-watts measurements are generated from data recorded during our precondition run, and the stated average is from the last five minutes of the test.

The HK3R averages 4,249 IOPS per watt, the 845DC EVO averages 3,973 IOPS per watt, and the M500DC jumps to a big lead, averaging 9,545 IOPS per watt due to its outstanding write performance. The DC S3500 averages 3,125 IOPS per watt.

Last updated: Apr 7, 2020 at 12:33 pm CDT

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Paul Alcorn

ABOUT THE AUTHOR - Paul Alcorn

The quest for benchmark world records led Paul further and further down the overclocking rabbit hole. SSDs and RAID controllers were a big part of that equation, allowing him to push performance to the bleeding edge. Finding the fastest and most extreme storage solutions led to experience with a myriad of high-end enterprise devices. Soon testing SSDs and Enterprise RAID controllers at the limits of their performance became Paul's real passion, one that is carried out through writing articles and reviews.

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