Posted by rgmekanic 6:56 PM (CST)
Monday February 12, 2018
In a report from The Register, Micron is planning to release quad-level flash cell drives later this year. QLC flash stores 4bits/cell vs TLC flash's 3 meaning a 6TB TLC SSD could become an 8TB QLC SSD using this technology, and start encroaching on the nearline disk market. QLC flash does however have a shoter working life than TLC, and is expected to be more suitable for read-intensive applications. The QLC drive will be built on 3D NAND and have a SATA interface, and a feature set optimized for hyperscale use.
The Micron presentation also revealed that both an enterprise client and consumer NVMe SSD were coming. They would have faster access (~100micro-second latency) than equivalent SAS or SATA interface SSDs (~150micro-second latency). The client one will use PCIe 3.0 x4 lane and offer TCG Opal v2.0 and Pyrite security.