Finally the large capacity SSD with the world's largest capacity of 15 TB will be shipped

SSD boasts the world's largest capacity of Samsung really 15.36 TB (15,360 GB)PM 1633aWe have announced that we have begun shipping. We are upgrading capacity by using the latest highly integrated technology, and it is said that it will be mainly shipped to enterprises.

Samsung ships the world's highest capacity SSD, with 15 TB of storage | Computerworld
http://www.computerworld.com/article/3040208/data-storage/samsung-ships-the-worlds-highest-capacity-ssd-with-15tb-of-storage.html?nsdr=true

The PM 1633a is a 2.5 inch size model used for notebook PCs and the like, with a thickness of 15 mm. It is positioned as an enterprise storage with a 12 Gbps Serial Attached SCSI (SAS) interface. The number of possible I / O accesses per second is 200,000 IOPS in random reading and 32,000 IOPS in random writing, and the sequential read / write performance is as great as 1200 MB / s at the maximum .


Three-dimensional V-NAND flash memory (3D V-NAND) with 256 gigabit (32 GB) capacity that Samsung succeeded in development for the first time in the world was made possible by this large capacity. For data recording method, TLC that writes 3 bits per cell is adopted, and the storage capacity of 256 gigabits per chip is realized by further extending the number of stacked cells to 48 layers. In addition, the number of cell stacks reached 24 layers in 2013 and 36 layers in 2014.


In the NAND flash memory manufactured by the conventional technology, the semiconductor elements were arranged on a plane, but with the advent of 3D NAND stacking memory, the storage capacity has expanded at once. In the Flash Memory Summit and Exhibition where Samsung announced the 16 TB SSD, the new 3D NAND has also been released from Toshiba and Intel, and Toshiba has announced the same 256 gigabit 3D NAND as Samsung. The "V" of Samsung's 3D V-NAND means "vertical", which is attached because the memory is vertically stacked.


Samsung said that it has a lineup of models with capacities of 7.68 TB, 3.84 TB, 1.92 TB, 960 GB, and 480 GB in addition to the 15.36 TB model for PM 1633 a. Samsung does not publish the price because it is for enterprise, but it is predicted that nearly 1 million yen will be in Japanese yen if it is the maximum capacity 15 TB model.