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SanDisk Extreme Pro 240GB Six-Drive SSD RAID Report

SanDisk Extreme Pro 240GB Six-Drive SSD RAID Report
We take SanDisk's flagship SSD for a spin, and see how it scales in performance from a single drive all the way to a powerful six-drive RAID 0 array.
By: Jon Coulter | RAID in Storage | Posted: Nov 28, 2014 11:20 pm





SanDisk's Extreme II series has been, and continues to be one of the best performing SSDs on the market. The Extreme II series is known for superior performance in a heavy usage environment. As a single drive, there is still nothing (other than the Extreme Pro) that can outperform the Extreme II if what you need is a SSD that provides consistent performance in extreme consumer based usage scenarios. The Extreme II series relies on emulated SLC layer caching technology called "nCache" to deliver superior performance and endurance.


SanDisk's new Extreme Pro series builds on the success of SanDisk's Extreme II series, coming mainly in the form of their second-generation nCache emulated SLC layer technology. SanDisk calls their second-generation caching technology nCache Pro. Originally, nCache technology primarily focused on increasing endurance by consolidating small random writes on the SLC programmed layer of the flash, and flushing those writes sequentially to the drive's MLC programmed flash array. This technique delivers superior endurance.


With nCache Pro technology, SanDisk has refocused SLC layer based caching technology to deliver class leading endurance, and increasing performance in a manner similar to what we have seen from Samsung's 840 EVO series. nCache Pro technology is a more refined balance between endurance and performance than we get from the original nCache technology. In addition to nCache Pro, SanDisk overclocks the flash processor, and over provisions the flash array for faster performance, and long-term endurance.


SanDisk has so much confidence in their nCache Pro technology and high-grade 1Ynm (A19, 19mm x 19.5mm) ABL MLC 64Gbit Toggle flash, that they now offer an industry leading ten-year warranty to back their flagship Extreme Pro SSDs. It is worth noting that the ten-year warranty is actually ten years, or 80 terabytes written, whichever comes first. Most of you will not hit 80 terabytes written over the lifetime of a ten-year warranty, so it should be good for ten years for the majority of users.


On the user management front, SanDisk now has a very clean and functional SSD toolbox called "SanDisk SSD Dashboard." This tool allows you to secure erase SanDisk SSDs and change partition sizes, and it includes many other useful tools for managing your SanDisk SSD.


Let's go ahead and get into this review. There are plenty of reviews that have documented the performance of a single SanDisk Extreme Pro, so we are not going to focus on comparing the performance of the Extreme Pro to other drives; we already know it is unbeatable as a single drive in a heavy duty usage scenario. What we are going to examine today is how well the SanDisk Extreme Pro scales in RAID 0 arrays. After all, the more the better, right? Let's find out!



PRICING: You can find SanDisk's Extreme Pro 240GB for sale below. The prices listed are valid at the time of writing, but can change at any time. Click the link to see the very latest pricing for the best deal.


United States: The SanDisk Extreme Pro 240GB retails for $129.99 at Amazon.


Canada: The SanDisk Extreme Pro 240GB retails for CDN$177.87 at Amazon Canada.

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