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Showing posts with the label SSD drives

Renice: the Physical Destruction of SSD

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SSD Physical Destruction video: (https://www.youtube.com/watch?v=IAJvNfo2MpY) It’s not the worst burning in the video, other components are also burned and you could see the fire if press destruction button repeatedly. Here are several questions that you might want to know after watching the video. Q1, Is the Nand flash totally destroyed?  Yes. Q2, It seems the burning takes long time, can it be faster?       Yes. Burning time is controlled by singlechip, so the time not only can be set freely but also ensure complete destroy. Our test result shows that 10s can destroy all Nand flash (only for approved flash model). Q3, How long does the burning take?       Press the button for more than 5 seconds to trigger the physical data destruction function and start burning the NAND flashes, each Nand flash burning will take 5 seconds. Q4, Only through the button to trigger Physical Destruction function?  ...

Test principle and key point of SSD Power-off Protection

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Considering the SSD must be based on FTL to realize the data transfer between logical address and physical address, if there happens abnormal power-off in case of normal operation (read/ program/erase), it may lead the loss of mapping table which has not finished updating and resulting in the SSD failed to be detected by host. Meanwhile, to improve the read/write performance, SDRAM normally adopted as buffer on SSD board.The abnormal power-off also can cause the loss of data or updated mapping table which have not been written into NAND Flash from SDRAM. Failure problems caused by abnormal power-off 1. SSD cannot be detected by OS once sudden power-off, it only be reusable after re-build mapping table or replanting. 2. Mass new bad block generated after repeatedly abnormal power-off. The mechanism of new bad block generated is: when SSD cannot successfully read/ program or erase some blocks, such blocks would be marked as bad block. However, they are not real bad blocks, but a ...

Renice R-SATA (RSATA/Ruged SATA) SSD Embedded Memory Storage Solution for Aerospace and Defense Application

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Aerospace and Defense storage applications require the highest level of reliability, often operating in harsh environments. The Flash storage devices used in these applications must therefore operate flawlessly while exposed to extreme temperatures and high mechanical shock and vibration loads. SATA Gold finger Connector can’t cater to this challenge!  The Fatal Weakness of SATA Gold finger, reasons: 1. The gold finger adopts flat structure, male connector and female connector contact through the plane, inevitably there will be momentary bad contacts during heavy shock and vibration, and the bad contacts may cause system crash or even damage the SSD due to frequent abnormal power loss. 2. The intense shock may result in   drag and malposition between male and female connectors. The gold finger uses fixed structure with no any buffer design, thus it is likely to be damaged by violent drag causing by intense shock. So we RENICE R-SATA Connector can solve this problem. ...

2.5" SATAII/SATAIII SSD, Extended temperature

https://drive.google.com/file/d/0B2ENB7KLrYWBRTR2NDJhZG5aYkE/view