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12Gb/s SAS Seagate 6TB Enterprise Capacity 3.5 HDD v4 Review

By: Paul Alcorn | HDDs in IT/Datacenter | Posted: Jun 28, 2014 10:50 am
TweakTown Rating: 93%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 12Gb/s SAS Seagate Enterprise Capacity v4 averages 264 IOPS at QD256, SATA v4 tops out at 260 IOPS, and the SAS HGST Ultrastar He6 averages 262 IOPS. This is 37 IOPS faster than the SATA He6, and again signifies just how much faster the SAS He6 is in these workloads.






The SAS v4 averages 280 IOPS, the SATA v4 leads with an average of 289 IOPS at QD256, and the He6 offers up a considerably slower 232 IOPS.






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




Power consumption for the SAS v4 averages 10.8 Watts, the He6 averages a miserly 7.6 Watts, and the SATA v4 averages 10.5 Watts.






All three drives fall into a predictable profile for read and write power efficiency, with the SAS and SATA v4 at the bottom and the He6 occupying the top of the charts.

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