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WD Re (WD4000FYYZ) 4TB Enterprise HDD Review - 8K Random Read/Write

By: Paul Alcorn | HDDs in IT/Datacenter | Posted: Sep 13, 2013 5:31 pm
TweakTown Rating: 91%Manufacturer: WD

8K Random Read/Write




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 WD Re delivers an average of 177 IOPS at QD256, falling to the bottom of the test pool.




The average 8K random write speed of the WD Re is 219 IOPS at QD256. The HGST HDD measures a lower 211 IOPS at QD256. The Seagate Enterprise Capacity V.6 averages 199 IOPS, followed by the Toshiba MG03ACA400 at 196 IOPS. Once again, the WD Re wins in the heavy random write workload.




The WD Re provides middling performance in the mixed read/write testing, with a tendency to score very high in the light mixed workloads.




The WD Re is very consistent, with 99.58% of I/O's (65,124) at 100-200ms, and 272 I/O's (.41%) at 200-400ms.




Power consumption for the WD Re averages 11.83 Watts during the test period.






The WD Re averages 17.84 IOPS per Watt in 8K random write, and 14.49 IOPS per Watt for 8K random read access.

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