Disk drive data caching using a multi-tiered memory

摘要: A disk drive is disclosed that utilizes multi-tiered solid state memory for caching data received from a host. Data can be stored in tier provide the required performance at low cost. For example, multi-level cell (MLC) used to store frequently read but infrequently written. As another single-level (SLC) Improved performance, reduced costs, and improved power consumption thereby attained.