Micron Technology, Inc.
Allocation of overprovisioned blocks for minimizing write amplification in solid state drives

Abstract:

Systems and methods for allocation of overprovisioned blocks for minimizing write amplification in solid state drives are disclosed. An example system comprises: a plurality of memory devices and a processing device operatively coupled to the memory devices, the controller configured to: determine a value of a data stream attribute associated with a data stream; determine, based on the value of the data stream attribute, an overprovisioning factor associated with the data stream, wherein the overprovisioning factor is calculated to provide a uniform distribution of valid translation unit counts (VTCs) across the data stream; and allocate, based on the overprovisioning factor, a plurality of overprovisioned blocks to the data stream.