Samsung plans to release 512Gb 3b/cell (TLC) SSDs based on its 6th generation V-NAND 128-layer flash memory in 2020, and has already started research for V-NAND featuring 500 or more layers.
The South Korean company expects that its 6th generation V-NAND will be widely available next year. The memory has a 256/512 density and will offer IO speeds of up to 1200 Mbps.
The company's SSD offerings for the cloud include the PM1733 SSD featuring a PCI Express Gen4 (PCIe Gen4) interface, sequential reads of 6,400MB/s and writes at 3,800MB/s. The company has already introduced a 30.72TB model and it is equipped with a dual controller for increased reliability.
In addition, the PM1735 series of SSDs will be available in U.2 and HHHL form factors. The PM1735 U.2 will offer up to 6,400/3,800 MB/s sequential read/write speeds and capacities of up to 25.6 TB. Its HHHL sibling will offer a capacity of up to 12.8TB and read speeds of up to 8,000 MB/s.
Samsung is proposing the use of "Z-SSD" for applications that require low-latency. Optimizations result to a <100us latency in a storage system - 5.5x lower latency compared to a TLC based SSD in 4KB random tasks as well as 100x lower latency in mixed random reads, according to Samsung.
Samsung also continues the development for SAS SSD, which offer hot plug support as well as reliability through dual-ports. The PM1653 (SAS4) 24G SSD supports up to 4,000 MB/s / 3,800MB/s in sequential read / write tasks, respectively.
Future SSD research projects include the SmartSSD for offloading CPU workloads. These NVMe SSDs have an FPGA accelerator onboard. For faster and simple connection to the cloud, Samsung is working on EthernetSSD, which take advantage of NVMe over Fabric.
For the consumer storage segment, Samsung has introduced UFS 3.x memory for smartphones. This kind of flash storage products offer stable high speeds (500MB/s Seq. write) without the performance drop when writing. They also offer data loss protection with error recovery and automatic re-transmission functions.
Already available in South Korea, such products are coming to the U.S. in 2020 and will be also compatible with UFS card slots found on Samsung's notebook PCs.
Samsung is also working on the development of a space-saving NVMe SSD. Available at the size of a coin (M.2 22x30), they offer capacities of up to 1TB and weight just 1g.