Patent ID: 11966626
Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A method of dynamically switching memory blocks of a storage device from a multi-bit mode to a single-bit mode for storing data in non-volatile memory cells of the memory blocks, comprising:
receiving a write request from a host;
based, at least in part, on receiving the write request, determining whether a trigger event has occurred to switch one or more of the memory blocks from the multi-bit mode to the single-bit mode, wherein the one or more memory blocks in the single-bit mode have a lower data storage density and a higher write endurance than the one or more memory blocks in the multi-bit mode;
based, at least in part, on determining that the trigger event has occurred:
switching the one or more memory blocks from the multi-bit mode to the single-bit mode;
storing, in the single-bit mode, data associated with the write request in the one or more memory blocks at the lower data storage density;
calculating a new terabyte written (TBW) rating of the flash storage device based, at least in part, on the lower data storage density and the higher write endurance of the one or more memory blocks when in the single-bit mode; and
notifying the host of the new TBW rating of the flash storage device.