A while ago I was considering putting low-powered 5400 RPM drives into a NAS. I was worried about performance, but Tom's Hardware shows us that drive speed isn't the bottleneck, and how slower drives can even beat faster ones. The main bottleneck in any NAS is the RAID engine. Since many NAS units don't include a dedicated controller, oftentimes the speed of the drive just doesn't matter. If you're using a blazing-fast hardware RAID card in your own custom built setup, then drive speed might ma....
Gizmodo
