Abstract: A data storage device and method for host buffer management are provided. In one embodiment, a data storage device is provided comprising a non-volatile memory and a controller. The controller is configured to receive a read command from a host; read data from the non-volatile memory; identify a location in a host memory buffer (HMB) in the host that is available to store the data; write the data to the location in the HMB; and inform the host of the location in the HMB that stores the data. Other embodiments are possible, and each of the embodiments can be used alone or together in combination.

Abstract: A storage system and method for caching a single mapping entry for a random read command are provided. In one embodiment, a storage system is provided comprising a memory and a controller. The controller is configured to determine whether a read command received from a host is a random read command, wherein the read command comprises a logical address; and in response to determining that the read command received from the host is a random read command, caching only an associated logical-to-physical address map entry from a logical-to-physical address map stored in the memory instead of caching a larger segment of the logical-to-physical address map that contains the entry and other entries. Other embodiments are provided.