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HGST Ultrastar 7K4000 Enterprise HDD Review (Page 6)

Paul Alcorn | Aug 16, 2013 at 5:05 pm CDT - 1 min, 7 secs time to read this page
Rating: 95%Manufacturer: HGST

8K Random Read/Write

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8K random read and write speed is a metric that is not tested for consumer use, but for enterprise environments this is an important aspect of performance. With several different workloads relying heavily upon 8K performance, we include this as a standard with each evaluation. Many of our Server Emulations below will also test 8K performance with various mixed read/write workloads.

The HGST Ultrastar 7K4000 delivers an average of 215 IOPS at QD256, easily rising above its competitors.

HGST Ultrastar 7K4000 Enterprise HDD Review 19 | TweakTown.com

The average 8K random write speed of the HGST HDD is 211 IOPS at QD256. The Seagate Enterprise Capacity V.6 averages 199 IOPS, followed by the Toshiba MG03ACA400 at 196 IOPS. The 7K4000 easily wins this test.

HGST Ultrastar 7K4000 Enterprise HDD Review 20 | TweakTown.com

The 7K4000 again masters the mixed read/write testing with a solid lead over competitors.

HGST Ultrastar 7K4000 Enterprise HDD Review 21 | TweakTown.com

Once again, we observe the disparate latency distribution, with 54.13% of I/O's (33,202) at 100-200ms, and 15,083 I/O's (24.59%) at 200-400ms, and a broad smattering of I/O's falling into the more desirable ranges.

HGST Ultrastar 7K4000 Enterprise HDD Review 22 | TweakTown.com

Power consumption for the HGST 7K4000 averages 9.61 Watts during the test period.

HGST Ultrastar 7K4000 Enterprise HDD Review 23 | TweakTown.com
HGST Ultrastar 7K4000 Enterprise HDD Review 24 | TweakTown.com

The 7K4000 averages 21 IOPS per Watt in 8K random write, and 21 IOPS per Watt for 8K random read access. This excellent showing outstrips the competing solutions by a decent margin.

Last updated: Apr 7, 2020 at 12:31 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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