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Seagate 6TB Enterprise Capacity 3.5 HDD v4 Review

By: Paul Alcorn | HDDs in IT/Datacenter | Posted: May 7, 2014 8:05 pm
TweakTown Rating: 94%Manufacturer: Seagate

8k Random Read/Write




Server workloads rely heavily upon 8k performance, and we include this as a standard with each evaluation. Many of our server tests also measure 8k performance with various mixed read/write workloads.


The average 8k random read speed of the Seagate Enterprise Capacity v4 averages 260 IOPS at QD256, but it reaches its pinnacle faster than the 7K400, which tops out at 275 IOPS. The HGST Ultrastar He6 averages the lowest at 223 IOPS.






The Seagate v4 leads easily with an average of 289 IOPS at QD256, whereas the He6 offers up 232 IOPS, and the 7K4000 averages a middle-of-the-pack 265 IOPS.






The Seagate v4 once again takes the lead as we mix in more write activity.




Power consumption for the Seagate v4 averages 10.5 watts, and the He6 averages a miserly 7.54 watts, which is considerably lower than the 7K4000's 9-watt average.






All three drives fall into similar efficiency profiles for write activity, and only three IOPS-per-Watt separate the highest from the lowest. Once again, the Seagate v4 lags behind in read efficiency by roughly five IOPS-per-Watt, surprisingly close considering its higher power consumption under operation.

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