Marvellworld Trade Ltd.

Toshiba Corporation

Shailesh Shiwalkar

Jagadish Kumar Mukku

Sandeep Karmarkar

Hy Dinh Vu

Anil Goyal

Arvind Pruthi

A cache system for a storage device includes a solid state drive (SSD), a random access memory (RAM), and a cache control device. The cache control device is configured to: retrieve data from the storage device in response to a request to read data from the storage device, store at least some of the data in one or both of (i) the SSD and (ii) the RAM, when storing the at least some of the data to the RAM, write to the RAM non-sequentially with respect to a memory space of the RAM, and when storing the at least some of the data in the SSD, write to the SSD sequentially with respect to a memory space of the SSD. The cache control device comprises an SSD interface device configured to allocate memory for storing data in the SSD sequentially with respect to the memory space of the SSD.

Cache system using solid state drive

A cache system for a storage device includes (i) one or more solid state drives (SSDs), (ii) one or more random access memories (RAMs), and (iii) a cache control device. The cache control device caches at least some of first data that is to be written to the storage device, and caches at least some of second data that is retrieved from the storage device. When caching first data or second data in one of the one or more RAMs, the cache control device writes to the one RAM non-sequentially with respect to a memory space of the one RAM. When caching first data or second data in one of the one or more SSDs, the cache control device writes to the one SSD sequentially with respect to a memory space of the one SSD.

Systems, methods, and other embodiments associated with managing memory are described. According to one embodiment, an apparatus includes a converter that dynamically converts a structure of a data representation stored in a memory, where the structure is selectively converted between a sparse format and a non-sparse format.

Growing community of inventors

Santa Clara, CA, United States of America

Shailesh Shiwalkar