Seagate Technology International

Samsung Electronics Co., Ltd.

Seagate Technology Incorporated

Se-Wook Na

In-sik Ryu

Sang-hoon Lee

Jae-sung Lee

Shea-Yun Lee

Hye-jeong Nam

Hye-Jeong Nam

Sung-Pack Hong

Tae-Beom Kim

Hyunchul Park

Byung-Wook Kim

Young-Jae Jung

In Sik Ryu

Moon-chol Park

Durina Park

A storage device includes a nonvolatile memory device and a memory controller configured to control the nonvolatile memory device in response to a request from a host. The memory controller is configured to employ state information related to the confidence level of a power supply to determine a reliability level with respect to an access operation of the memory device and to perform a reliability guarantee operation corresponding to the determined reliability level.

Storage device using power state information and operating method thereof

Hybrid storage apparatus and logical block address assigning methods for the hybrid storage apparatus are provided. A hybrid storage apparatus includes a plurality of storage apparatuses having different writing methods, and a controller to combine the storage apparatuses as a single storage apparatus, to assign one or more logic block addresses to the single storage apparatus, and to access the storage apparatuses using the logic block addresses. The address assigning method of a hybrid storage apparatus includes searching and detecting one or more storage apparatuses included in a hybrid storage apparatus when an initially set condition is generated, combining the storage apparatuses as a single storage apparatus, assigning one or more logic block addresses to the single storage apparatus, and accessing the storage apparatuses using the logic block addresses.

Hybrid storage apparatus and logical block address assigning method

A method of controlling a hybrid hard disk drive. The method includes receiving a read command from a host; searching metadata of a file to be read; determining whether the metadata satisfies a predetermined setup condition; and if the metadata satisfies the setup conditions, copying the file to be read, from a first storage device and storing the file in a second storage device.

Selection of data storage locations based on one or more conditions

A data storage device including a storing medium to shingle write and a controller to access the storing medium so that data is sequentially written on the storing medium using a mapping table based on Logical Block Address (LBA) included in a write command.

Data storage device, storing medium access method and storing medium thereof

Provided are a data storage medium accessing method of accessing a data storage medium of a data storage device according to a virtual address (VA), the data storage device to access the data storage medium according to the VA, and a computer readable recording medium having recorded thereon a program to access the data storage medium accessing method. The data storage medium accessing method includes the operations of converting a logical block address (LBA) included in a command received from a host into a VA and converting the VA into a real address of a data storage medium included in a data storage device, and accessing the data storage medium using the real address, wherein the VA is an address that is based on a reserved block of the data storage medium in a data write operation, wherein the reserved block is a valid block that is ready to have data written thereto, and wherein a current location of a head included in the data storage device during the data write operation is set according to the reserved block.

Data storage using virtual addressing

Methods and apparatus for cache flush control and write re-ordering in a data storage system are provided. A cache flush control method includes cache flushing information stored in a cache memory to a first storage apparatus of a plurality of storage apparatuses included in a data storage system when a cache flush condition is generated, and performing a write command in a second storage apparatus of the plurality of storage apparatuses which has a write speed lower than the first storage apparatus according to information stored in the first storage apparatus processed with the cache flush.

Method and apparatus for cache flush control and write re-ordering in a data storage system

A data storing location managing method including generating an access frequency of a storing area accessed in a first storage apparatus according to a command received, copying data stored in the storing area of the first storage apparatus to a storing area of a second storage apparatus when the access frequency of the storing area of the first storage apparatus is greater than a reference value, and replacing location information of the storing area of the first storage apparatus with location information of the storing area of the second storage apparatus.

Data storing location managing method and data storage system

Disclosed is a method for reading data in a memory system including a buffer memory and a nonvolatile memory, the method being comprised of: determining whether an input address in a read request is allocated to the buffer memory; determining whether a size of requested data is larger than a reference unless the input address is allocated to the buffer memory; and conducting a prefetch reading operation from the nonvolatile memory if the requested data size is larger than the reference.

Growing community of inventors

Suwon-si, South Korea

Se-Wook Na