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fast purge flash SSD oems Aitech Defense Systems Apacer Asine Austin Semiconductor BiTMICRO Networks Cactus Technologies Curtiss-Wright Emphase Extreme Engineering Solutions Foremay Greenliant Systems InnoDisk KingFast Memoright Microsemi Pangaea Media Phoenix International pureSilicon RunCore Samsung SMART Modular Technologies STEC Super Talent Technology Targa Systems Trident Space & Defense Vanguard Rugged Storage WD Solid State Storage White Electronic Designs .. Surviving SSD sudden power loss Why should you care what happens in an SSD when the power goes down? This important design feature - which barely rates a mention in most SSD datasheets and press releases - has a strong impact on SSD data integrity and operational reliability. This article will help you understand why some SSDs which (work perfectly well in one type of application) might fail in others... even when the changes in the operational environment appear to be negligible. If you thought endurance was the end of the SSD reliability story - think again. ...read the article ..

SSD Erase Bookmarks Data Integrity in flash SSD Design Surviving SSD sudden power loss Protecting Military Data in a Flash (pdf) the changing face of the industrial SSD market Principles of bad block management in flash SSDs Why SSD sanitization software fails to protect (pdf) Reliably Erasing Data From Flash-Based SSDs (pdf) Security Features for SSDs in Defense Applications (pdf) Designing Robust Security Options for Embedded Systems (pdf) Security Erase - When Data Destruction Becomes Top Priority (pdf) .. Fast Purge flash SSDs - when "Rugged SSDs" won't do the job by Zsolt Kerekes, editor The need for fast data erase - in which vital parts of a flash SSD are destroyed in seconds - has always been a requirement in military projects. That's because if a disk falls into enemy hands the data protection offered by encryption is not safe enough. Encryption can be defeated by brute force methods and also by master keys being stolen. These are unacceptable risks in war time - which is why various methods of fast purge have been developed in the past decade - including blowing critical datapaths using elevated currents (fuse sputtering technology) and destroying parts of a chip using elevated voltage. This is done by special destructive programming circuits which are designed into the SSD silicon. The so-called "erase" which is intrinsic to flash write operations is not a useful mechanism for this purpose because flash memory cells have remanence - which means their previous contents can be read under certain test conditions. Another new method (unveiled in 2011 and invented by Pangaea Media) appears to use a triggerable ultrasonic transducer integrated in the SSD casing - which destroys memory chip substrates using energy from an embedded battery. Vendors don't like to talk much about the implementation details for obvious reasons. But the fast purge options offered typically fall into 2 categories:- fastest operation, or lowest power. Another fast erase / purge option available to designers is the option to render the SSD unusable (destroying key operating parts of the SSD) versus the option to reuse the SSD in another application. Although many SSD vendors are offering their products with extended rugged operating environment capabilities - it's the availability of fast purge which differentiates "true military" SSDs which can be deployed in defense applications. Many readers have asked for a separate directory of such products to simplify their search process. Fast purge SSDs are the antithesis of ideal consumer / enterprise SSDs - because they are designed to defeat data recovery. The problem for military SSD designers is that as recovery techniques get better and raw computing power increases - the demands on the purge systems are increased. Having said that - one military SSD company, RunCore, has inserted an interesting security feature into a consumer notebook SSD range (launched Q1 2010) whereby if your notebook is stolen you send a (phone) text message to it - and it destroys the data. .. flash SSD capacity - the iceberg syndrome Have you ever wondered how the amount of flash inside a flash SSD compares to the capacity shown on the invoice? What you see isn't always what you get. There can be huge variations in different designs as vendors leverage invisible internal capacity to tweak key performance and reliability parameters. ...read the article . ..

... Megabyte knew how to destroy data fast. 2.5" removable military SSDs for airborne apps - GbE / SATA / USB from Targa Systems 2.5" rugged SATA SLC flash SSDs from SMART military SSDs -55C to +125C operation from RunCore . How big was the thinking in this SSD's design? Does size really does matter in SSD design? By that I mean how big was the mental map? - not how many inches wide is the SSD. The novel and the short story both have their place in literature and the pages look exactly the same. But you know from experience which works best in different situations and why. When it comes to SSDs - Big versus Small SSD architecture - is something which was in the designer's mind. Even if they didn't think about it that way at the time. For designers, integrators, end users and investors alike - understanding what follows from these simple choices predicts a lot of important consequences. ...read the article

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