SOLID STATE STORAGE DEVICE WITH VARIABLE LOGICAL CAPACITY BASED ON MEMORY LIFECYCLE

摘要

Several embodiments of memory devices and systems having a variable logical memory capacity are disclosed herein. In one embodiment, a memory device can include a plurality of memory regions that collectively define a physical memory capacity and a controller operably coupled to the plurality of memory regions. The controller is configured to advertise a first logical memory capacity to a host device, wherein the first logical memory capacity is less than the physical memory capacity, determine that at least one of the memory regions is at or near end of life, and in response to the determination, (1) retire the at least one of the memory regions and (2) reduce a logical memory capacity of the host device to a second logical memory capacity that is less than the first logical memory capacity.

主权项

1. A memory device, comprising:
a plurality of memory regions collectively defining a physical memory capacity; and a controller operably coupled to the memory regions, wherein the controller is configured to—
advertise a first logical memory capacity to a host device, wherein the first logical memory capacity is less than the physical memory capacity,determine that at least one of the memory regions is at or near end of life, andin response to the determination, (1) retire the at least one of the memory regions and (2) reduce a logical memory capacity of the host device to a second logical memory capacity that is less than the first logical memory capacity.