Marvell International Limited

Zhi Yong Ching

Weiya Xi

Chao Jin

Khai Leong Yong

Sophia Tan

Chun Teck Lim

Sufui Sophia Tan

Zhimin Yuan

Bo Liu

Li Wang

Siang Huei Leong

Chun Lian Ong

Jianzhong Shi

Kui Cai

Chao Bi

Kheong Sann Chan

Pantelis Sophoclis Alexopoulos

Quan Jiang

Qide Zhang

Budi Santoso

Jing Zhang

Moulay Rachid Elidrissi

Chiew Leong Wong

Guchang Han

Zhimin He

Mengjun Liu

Tiejun Zhou

Jiang Feng Hu

Leonard Gonzaga

Ke Gan

Wee Kiat Lim

Wuzhong Lin

Yansheng Ma

Shengkai Yu

Yin Quan Yu

Alexopoulos Pantelis

Kannan Sundaravadivelu

Ningyu Liu

Jianqiang Mou

Boon Long Ibrahim See

Venkataramanan Venkatakrishnan

Cheng Peng Tan

Chong Wee Lee

Phyu Hla Nu

Wei Hua

Cheng Su Soh

According to various embodiments, a storage device may be provided. The storage device may include: a first memory including a magnetic recording medium and configured to store user data; a second memory including a solid state drive recording medium and configured to store at least one of metadata or other frequently accessed data; and an interface configured to access the second memory using a pre-determined communication protocol.

Storage devices and methods for controlling a storage device

A data storage device includes a data storage medium having a plurality of data blocks. A cache includes a plurality of cache blocks. Each cache block includes a corresponding cache block address. A metadata table includes a plurality of table entries for the data blocks, respectively. Each of the table entries is configured to store the cache block address of one of the cache blocks in which data of a corresponding one of the data blocks is written. A bitmap is configured to store statuses of all of the cache blocks, respectively.

Systems and methods for managing cache of a data storage device

A data storage device includes a data storage medium, a cache, and a cache control memory. The data storage medium has M data blocks. M is an integer greater than 1. The cache includes N cache blocks having N cache block addresses, respectively. N is an integer greater than 1. The cache control memory includes M memory elements corresponding to the M data blocks, respectively. The cache control memory is configured to, in response to a request to cache data of one of the M data blocks: (a) write the data from the one of the M data blocks to one of the N cache blocks; and (b) write, in the one of the M memory elements corresponding to the one of the M data blocks, one of the N cache block addresses corresponding to the one of the N cache blocks where the data is written.

In various embodiments, a data storage system may be provided. The data storage system may include a storage. The storage may include a first portion and a second portion. The data storage system may further include a determination circuit configured to determine whether to write data to the first portion or to the second portion. The data storage system may also include a control circuit configured to control writing the data to the first portion in a log structured manner.

Data storage system, method of writing to storage in the data storage system, hard disk and method of forming the hard disk

A data storage device is provided. The data storage device includes a data storage medium having a plurality of data blocks, a cache having a plurality of cache blocks, wherein each cache block is identified by a cache block address, a cache control memory including a memory element for each data block configured to store the cache block address of the cache block in which data of the data block is written.

Data storage device and method of managing a cache in a data storage device

According to various embodiments, a storage controller configured to control storage of data in a pre-determined area of a storage medium may be provided. The storage controller may include a memory configured to store a write pointer, a reclaim pointer, and a wrapped around pointer. The write pointer may indicate a location of the storage medium to write incoming data. The reclaim pointer may indicate a location of the storage medium to perform a space reclamation. The wrapped around pointer may indicate a location of the storage medium where writing is to continue if writing of data reaches an end of the pre-determined area.

Storage controllers and storage control methods

According to an embodiment of the present invention, a data storage device comprising a motor having a stator is disclosed. The stator may include a substrate having a first surface and a second surface opposite to the first surface; and a n-phase winding arrangement having n phase windings; wherein each phase winding comprises m flat fractional-pitch coils arranged on the first surface of the substrate such that the coils are spaced apart uniformly along a closed loop and connected in series; wherein each coil together with an angular section of the substrate between the coil and an adjacent coil of the same phase winding defines a stator pole-pair; and wherein m is an integer larger than 1.

Data storage device

Growing community of inventors

Singapore, Singapore

Zhi Yong Ching