SSDs do offer a speed bonus at the cost of an extreme storage density hit, not to mention the price attached which adds up quickly when you are building RAID-5 boxes, let alone some of the other intricate RAID setups possible.  One way to bring the performance of your RAID array up is to look at 15K RPM SAS HDDs like the Seagate Cheetah 15K 3.5.  Just under $1.00/GB is certainly an improvement over SSD prices and when UMLan’s testing shows a very respectable burst rate of 194 MB/s and an average of 161 MB/s in HD Tune using an LSI MegaRAID SAS 9240-4icard to put a pair of Cheetahs in RAID-1.

“It is amazing how we progress in to the technological field. Just 60 years ago we were looking at methods to store information on to physical media. Who thought that this could be possible? Now we are no longer seeking methods of storing data but rather speed and performance. No mater what the media is we always looking to make things faster and more reliable and secure. Today we are going to be taking a look at the newest member of Cheetah Hard Drives from Seagate. Just by hearing the name of the product you would imagine it being extremely fast, and believe me it is. Let us take a closer look at Cheetah as it promises to provide a long lasting performance at extreme speeds.”

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