METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR SOLID STATE DRIVE CACHING ACROSS A HOST BUS

摘要

Methods, systems, and computer readable media for solid state drive caching across a host bus are disclosed. According to one aspect, a method for solid state caching across host bus includes, during operation of a solid state drive (SSD) having non-volatile memory (NVM) for bulk storage of data and metadata, a first random access memory (RAM), and a host bust interface for accessing a second RAM memory located on a host and separate from the first RAM, using the first RAM as a cache for storing a first portion of metadata, and using the second RAM as a cache for storing a second portion of metadata, where the second RAM is accessed by the SSD via the host bus interface.

主权项

1. A method for solid state caching across host bus, the method comprising:
during operation of a solid state drive (SSD) having non-volatile memory (NVM) for bulk storage of data and metadata, a first random access memory (RAM), and a host bust interface for accessing a second RAM located on a host and separate from the first RAM:
using the first RAM as a cache for storing a first portion of metadata; andusing the second RAM as a cache for storing a second portion of metadata, wherein the second RAM is accessed by the SSD via the host bus interface.