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Tip #1122: RPMs Really Do Make a Difference

Larry Jordan – LarryJordan.com

Faster hard drive RPM speeds equals faster data transfer rates.

I’ve spent the last two weeks optimizing my network and two of my locally-attached RAIDs. In this process, I found myself with two identical fully-optimized 4-drive RAIDs; except one was filled with 7200 RPM drives and the other with 5400 RPM drives.

So, I decided to test them to see how much RPM speed affects data transfer speeds.

What I learned is that 7200 RPM drives increase data transfer speeds by 30% on average. (See screen shot.)

For the complete details on my tests and the results, read this article.