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WD Red 6TB NAS Enterprise HDD Review

By: Paul Alcorn | HDDs in IT/Datacenter | Posted: Oct 7, 2014 1:06 pm
TweakTown Rating: 95%Manufacturer: WD

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 workloads also test 8k performance with various mixed read/write workloads.


The average 8k random read speed of the 6TB WD Red is 138 IOPS at QD256, while the WD Red Pro is 162 IOPS, the 4TB WD Red offers 135 IOPS, and the Seagate NAS HDD provides 92 IOPS.




The latency gap between the WD products shrinks with 8k random workloads, while the Seagate NAS HDD continues to lag behind.




The 6TB Red averages 143 IOPS at QD256, the WD Red Pro averages 193 IOPS, the 4TB WD Red provides 146 IOPS, and the Seagate NAS HDD averages 116 IOPS.






The 4TB and 6TB Reds continue to offer very similar performance.




Power consumption for the 6TB WD Red Pro is again very impressive at 5.52 watts.






The 6TB WD Red averages 26 IOPS-per-watt during write activity, and leads again with an average of 22 IOPS-per-watt during the read workload.

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