Samsung 840 Pro 256GB RAID 0 3-Drive SSD Review
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Hot on the heels of our Extreme II 3 drive RAID 0 Review we have another; this time featuring our current performance juggernaut the Samsung 840 Pro 256GB SATA III SSD. This review will be our second official 3 drive RAID 0 review since migrating to Haswell.
We will call this review another of our “Sweet Spot Reviews”. We feel the sweet spot for Haswell boards is 3 drives (you will need a Z87 board for a native Intel SATA III Port 3 Drive Array). Yes you can run more than 3 drives in RAID 0 (up to 6 drives) natively with Haswell’s Intel SATA III Ports but because of bandwidth limitations more than 3 drives doesn’t really give much of a return.
Samsung’s 840 Pro has been the fastest drive we’ve tested to date primarily due to Samsung’s proprietary MDX 3 core controller. The MDX controller with its 3 cores has an advantage over 2 core FSP’s in that it has a dedicated core for internal drive maintenance which frees up 2 whole cores; 1 for reading and 1 for writing to maximize the drives performance.
Because the Samsung 840 Pro is the fastest single MLC based drive we’ve tested it only makes sense that we see how an array of 3 of these babies fare. There is really no question that an 840 Pro array will set the bar yet again, after all that’s what it did with a single drive and a 2 drive array running on Z77. That being said it’s hard to get 3 matching drives for a review. This is why our array is actually made up of (2)256GB 840 Pro’s and (1) 512GB 840 Pro. Performance should be practically identical to (3) 256GB 840 Pro’s.
Okay, let’s see what Samsung has to say about their 840 Pro:
Samsung’s SSD 840 PRO Series is a high-performance SSD, capable of delivering up to 100,000 IOPS Random Read Speed and 540MB/s Sequential Read Speed—an SSD of unrivaled high performance. Built with an advanced MDX controller, Samsung’s SSD delivers high speeds regardless of data type, unlike competing controllers that greatly favor compressible data.
As the world’s #1 DRAM, NAND Flash, and SSD supplier; Samsung SSDs are designed and built completely in-house. The Samsung SSD 840 Series is optimized for exceptional, sustained performance and unrivaled reliability through its specially-engineered wear-leveling and garbage collection algorithms backed by a generous 5-year limited warranty.
The Samsung SSD 840 PRO Series provides the same excellent performance throughout its entire lifetime even under extremely heavy workloads. In fact, the sophisticated MDX controller is capable of maintaining peak performances under punishing conditions for more than twice as long the nearest competitor.
Business Friendly Features
The 840 SSD 840 PRO Series introduces three important hardware features for businesses: Worldwide Name (WWN), LED Indicator support, and AES 256-bit Full Disk Encryption (FDE). The first two features make it easier to integrate the 840 PRO SSD into server and storage systems while the AES Encryption helps safeguard data against attack. By encrypting all information on the disk at the hardware level, there is no detrimental effect on performance.
Plus, Samsung’s Magician software has been completely redesigned and includes several business-friendly features including Drive Health Status, Total Bytes Written (TBW), and Disk Scan & Error Reporting functionality. This allows IT managers to monitor drive health and plan hardware replacement cycles.