NVMHCI attached hybrid data storage

摘要

A hybrid data storage device includes a solid-state memory device, a disc-type memory device and a hybrid data storage device controller in communication with the solid-state memory device and the disc-type memory device. The hybrid data storage device controller is configured to receive Non-Volatile Memory Host Controller Interface (NVMHCI) commands from a host and use logic to make decisions for the optimization and efficient performance of the solid-state memory device and the disc-type memory device.

主权项

1. A method comprising:
deallocating, responsive to a deallocate command for data blocks, an erase block in a memory if substantially all the data blocks are in the erase block, the deallocating including: determining if at least one of the data blocks are in a solid-state memory that contains the erase block;
if at least one of the data blocks are in the solid-state memory, determining if all the data blocks are in the erase block;
if all the data blocks are in the erase block, deallocating the erase block;if all the data blocks are not in the erase block, determining if there is less than a threshold amount of valid data in the erase block; and
if there is less than the threshold amount of valid data in the erase block, copying the valid data from the solid-state memory to another memory and deallocating the erase block.