Configuration of Memory Services of a Data Storage Device to a Host System

A memory sub-system, comprising:

• a host interface operable on a connection to a host system;
• volatile memory, wherein the memory sub-system is operable to allocate a portion of the volatile memory to provide memory services to the host system over the connection;
• non-volatile memory operable to provide storage services to the host system over the connection;
• a backup power source;
• and
• a controller configured to:
• receive, via the host interface, a request to adjust an aspect of the memory services provided by the memory sub-system to the host system over the connection;
• determine that the request is permitted by data indicative of capabilities of the memory sub-system in provision of the memory services to the host system over the connection;
• and
• provide, via the host interface, a response to the request, the response.

A non-transitory computer storage medium storing instructions which, when executed in a computing system, cause the computing system to perform a method, comprising:

• operating a cache in a host system of the computing system to access memory services provided in the computing system;
• configuring a plurality of queues in a memory of the host system to access storage services provided by a solid-state drive connected to the host system over a computer express link connection;
• allocating, by the solid-state drive, a first portion of memory resources to provide the storage services to the host system over the computer express link connection according to a first protocol of storage access through the queues;
• allocating, by the solid-state drive, a first portion of the memory resources to provide the memory services over the computer express link connection according to a second protocol of cache coherent memory access;
• transmitting, over the computer express link connection from the host system to the solid-state drive, a request to adjust an aspect of the memory services;
• storing, by the solid-state drive, configuration data of the memory services according to the request;
• and
• providing, by the solid-state drive based on the configuration data, the memory services to the host system over the computer express link connection.