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Synchronous Flash

The Vertex 3.20, shrinking down to 20nm

Subject: Storage | April 4, 2013 - 07:22 PM |
Tagged: 20nm, ocz, vertex 3.20, synchronous flash, SandForce SF-2281

There is very little change between the original Vertex 3 and the new Vertex 3.20, as the controller remains as an SF-2281 and the rated speeds match, the only real difference is in the new 20nm NAND.  In a way [H]ard|OCP was disappointed that OCZ did not reduce the size of the Vertex to fit in mobile devices as the new NAND is very power efficient and would be welcomed more by mobile users than desktop users.  As far as performance per dollar it is still the Samsung 840 which remains on top but OCZ has a solid contender.

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"OCZ releases the Vertex 3.20 240GB SSD as part of the continued restructuring of its product lines. With 20nm NAND and a LSI SandForce SF-2281 controller the Vertex 3.20 SSD is geared for budget conscious buyers, and today we test it with the other top value-oriented SSDs."

Here are some more Storage reviews from around the web:

Storage

Source: [H]ard|OCP

A 7 year warranty on an SSD? Now we're talking enterprise class!

Subject: Storage | April 12, 2012 - 02:06 PM |
Tagged: owc, Mercury Enterprise Pro 6G, sata 6Gbs, ssd, synchronous flash, LSI, sf-2582

The OWC Mercury Enterprise Pro 6G SSD comes in four sizes, 50GB, 100GB, 200GB and 400GB, with all models sharing the same impressive statistics.  Inside you will find Toshiba Enterprise Toggle Synchronous eMLC 24nm NAND and a new Sandforce controller from LSI, the SF-2582.  As well there is a proprietary power technology called Paratus to prevent data loss from power interruptions as well as capacitors designed to handle high heat.  SSD Review liked the performance, were impressed by the price and absolutely love the 7 year warranty, which is so far unique for SSDs.

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"OWC has jumped feet first into the Enterprise space with the new OWC Mercury Enterprise Pro 6G SSD. Leveraging one of the fastest controllers on the planet, the LSI SF-2582 in tandem with Toshibas Enterprise Toggle Synchronous eMLC NAND, this SSD promises the absolute best in long term performance and endurance. OWC is also throwing in an outstanding industry-leading 7 Year Warranty with this product."

Here are some more Storage reviews from around the web:

Storage

 

Source: SSD Review

For a few dollars more; synchronized SSD shooters draw first

Subject: Storage | August 8, 2011 - 02:10 PM |
Tagged: ssd, sata 6Gps, asynchronous flash, synchronous flash, SF-2281 controller

With the latest SSD controller from SandForce, the SF-2281 SATA III, we have been seeing two different types of flash memory used as the storage medium depending on which vendor or product line you look at.  Asynchronous flash and synchronous flash differ in their timing when sending read and write commands, [H]ard|OCP's analogy of synchronous flash working like DDR is perfect as the new variety can send a command on both the rise and the fall of a clock cycle.

The reason this now matters is SATA III, which allows enough bandwidth for synchronous flash to show off its higher speeds; with the previous SATA standard it simply had no impact.  That speed impact on the new standard becomes obvious in [H]'s testing, especially when they fill both drives half way and conduct some real world tests.  Now that some of both types of drives are on the market, they also look at the price difference between the two types of flash,; a comparison in which the old asynchronous flash does not look good coming out of.

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"News flash! All flash NAND is not created equal! Sure, you know about multi-level and single-level NAND when it comes to speed, but what about synchronous and asynchronous NAND inside your shiny new SSD? We have answers and tell you where your money is best spent for real data speed."

Here are some more Storage reviews from around the web:

Storage

Source: [H]ard|OCP

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