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WD Red and Red Pro HDD NAS Performance Analysis in RAID 5 with 10GbE

By: Chris Ramseyer | HDDs in Storage | Posted: Aug 1, 2014 2:06 pm

Benchmarks - iSCSI Enterprise Workloads







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iSCSI Enterprise Workload Summary


Seagate and HGST also manufacture NAS specific HDDs. I have the Seagate NAS drives in my arsenal, and the drives are appropriately named NAS (product family name), leaving little doubt regarding what it's intended for. I don't have any HGST NAS models on hand at this time.


In nearly all of the workload tests over iSCSI, we see the WD Red Pro delivering more IOPS than the 6TB Red and 4TB NAS. In some of the tests, the NAS drive comes very close to the Red Pro, something that caught us by surprise.


I didn't intend to test the original 1TB Red drives in a three drive RAID 5 array, but the low performance in many of the iSCSI tests from the Red 6TB pressed the issue, so I had to verify the results. When I compared the Gen 1 Red to the Seagate NAS, the results were much closer than the new Gen 3 Red to the Seagate NAS.

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