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WD Red 4TB NAS HDD Enterprise Review - Database/OLTP and Fileserver

WD Red 4TB NAS HDD Enterprise Review
The latest generation of WD Red NAS HDDs offer an increase to 4TB in the 3.5-inch form factor with features tailored specifically for NAS users.
| HDDs in IT/Datacenter | Posted: Sep 7, 2013 2:03 am
TweakTown Rating: 92%Manufacturer: WD



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This test emulates Database and On-Line Transaction Processing (OLTP) workloads. OLTP is in essence the processing of transactions such as credit cards and high frequency trading in the financial sector. Databases are the bread and butter of many deployments. These are demanding 8K random workloads with a 66% read and 33% write distribution that can bring even the highest performing solutions down to earth.


The Red averages 144 IOPS at QD256.


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The Red exhibits an almost bi-modal distribution of write latency in this mixed workload, with a distribution on either end of the latency spectrum. If the Red does dynamically alter the speed of the platters, we may be witnessing vestiges of a speed adjustment during this workload.


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The Red averages 6.59 Watts during the test period.


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The Red averages 144 IOPS per Watt in our Database/OLTP testing, once again leading the pack in IOPS to Watts measurements.





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The File Server profile represents typical file server workloads that are very relevant to NAS usage. This profile tests a wide variety of different file sizes simultaneously to simulate multiple users with an 80% read and 20% write distribution.


The Red averages 182 IOPS at QD256, easily outstripping the speed of most consumer NAS Ethernet connections.


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The Red is very well suited to the Fileserver application, which comes in handy in a NAS environment. The Red delivers a range of latency that is within striking distance of its faster family members.


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The Red averages 6.97 Watts during the test.


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The Red averages an impressive 25.63 IOPS per Watt during the measurement window, far outstripping the faster HDDs.

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