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Samsung’s massive 15TB SSD can be yours -- for about $10K

Lucas Mearian | July 28, 2016
The 2.5-in. PM1633a has twice the performance of a high-end consumer SSD

Admittedly, MTBF specifications are more suited to determining the average lifespan of an entire drive line that ships in lots.

Samsung crammed into the 15.36TB drive 512 of its 256Gb V-NAND memory chips stacked 16 layers high to form a single 512GB package, with a total of 32 NAND flash packages. Along with all that non-volatile memory, Samsung also included 16GB of DRAM and used specially designed firmware that can access large amounts of high-density NAND flash concurrently.

In Samsung's V-NAND chip, each cell utilizes the same 3D Charge Trap Flash (CTF) structure in which the flash cell arrays are stacked vertically to form a 48-storied mass electrically connected through 1.8 billion channel holes vertically punching through the arrays using a special etching technology.

In total, each V-NAND chip contains more than 85.3 billion cells. They each can store 3 bits of data, resulting in 256 billion bits of data -- in other words, 256Gb on a chip.

 

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