FORTASA BLOG

Flash Memory Basics - Flash SSD Power Failure Corruption Prevention, Recovery and Test – Part 2

This is a continuation of the discussion of Flash SSD Power Failure Corruption Prevention, Recovery and Test 

Flash Memory Basics

NAND Flash memory is the base storage medium of the Solid State Drives. A Flash memory cell works on the principle that there is a distinguishable stored charge inside the cell which corresponds to either a programmed or erased condition. A peripheral circuitry can check the status of the cell (read) and determine which state the cell is in. The greater the difference between the erased and programmed condition the easier it’s to distinguish the cell state.

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Flash SSD Power Failure Corruption Prevention, Recovery and Test - Part 1

Electronic systems are often vulnerable to power disruptions. Voltage spikes, brownouts, surges, blackouts and other power supply fluctuations destabilize system operation with typically unpredictable results. In general, once a power spike is detected, a system is reset to revert back to an expected and default condition.

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CompactFlash Write Protect Switch and Protection Zones - Benefits Gaming Customer

CompactFlash Card with Write Protect Switch

Recently a gaming OEM customer has contacted Fortasa to investigate and evaluate our CompactFlash card solution for their Video Poker Machine. What attracted this customer was the specific features we offered that were very beneficial to the application:

Write Protect Switch

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Device Serialization Makes Fortasa Flash Cards and SSDs More Secure

Many of our industrial and military customers have a high level of interest to protect the critical information that is stored on their SSD or Flash card. A typical solution is to purchase a shrink wrap Encryption software application package that will encrypt the stored data. This level of encryption uses only the private key (password) to encrypt the stored files.The encrypted files can be copied and drives duplicated, but regardless of the storage medium the files will only be decrypted and useful to the owner of the encryption key.

Secure Encrypted Files

This solution works well as long as the private key is not publicly shared. If, however, the encryption key is released in the public domain, the SSD can be easily duplicated, files decrypted and easily shared.

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