At the 2022 OCP Global Summit, Silicon Motion showed prototype SSDs based on the Silicon Motion SM8366 PCIe 5.0 controller, Kioxia BiCS6 3D TLC NAND and Micron N48R 3D QLD NAND flash memory chips.
The shown devices are made in three form factors: U2, E1.S and E3.S. All of them are used in servers, storage systems and data centers, that is, they are not intended for the consumer market.
The SM8366 controller complies with the NVMe 2.0a standard, uses the Arm architecture and is released using a 12nm process technology. The SM8366 supports 16 NAND flash channels, each providing 2400 MT/s throughput. Specifies support for dual-channel DDR4-3200 and DDR5-4800 memory over a 40-bit interface as a buffer. The controller can be used in drives with a total capacity of up to 128 TB.
According to Silicon Motion, its third-generation enterprise SSD controllers are capable of up to 14 GB/s sequential read and write speeds. At the same time, performance in random read and write operations is 3 million IOPS and 2.8 million IOPS, respectively.
At the event, the company showed the work of one of the prototypes based on the SM8366 controller. The device demonstrated a speed of 13.6 GB / s. At the same time, the performance of random operations was 3.4 million IOPS, which is even higher than the values declared by the manufacturer.
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