摘要:
A tree data structure is stored in a flash memory device by storing a leaf node and an index node comprising a pointer to the leaf node in a same page of the flash memory device, which may be read on a per-page basis. A modified version of the leaf node and a modified version of the index node may be stored in a new page of the flash memory device when, for example, a key value is added to or deleted from the leaf node.
摘要:
A tree data structure is stored in a flash memory device by storing a leaf node and an index node comprising a pointer to the leaf node in a same page of the flash memory device, which may be read on a per-page basis. A modified version of the leaf node and a modified version of the index node may be stored in a new page of the flash memory device when, for example, a key value is added to or deleted from the leaf node.
摘要:
A device driver including a flash memory file system and method thereof and a flash memory device and method thereof are provided. The example device driver may include a flash memory file system configured to receive data scheduled to be written into the flash memory device, the flash memory file system selecting one of a first data storage area and a second data storage area within the flash memory device to write the received data to based upon an expected frequency of updating for the received data, the first data storage area configured to store data which is expected to be updated more often than the second data storage area. The example flash memory device may include a first data storage area configured to store first data, the first data having a first expected frequency for updating and a second data storage area configured to store second data, the second data having a second expected frequency of updating, the first expected frequency being higher than the second expected frequency.
摘要:
In one aspect, a method of writing data in a flash memory system is provided. The flash memory system forms an address mapping pattern according to a log block mapping scheme. The method includes determining a writing pattern of data to be written in a log block, and allocating one of SLC and MLC blocks to the log block in accordance with the writing pattern of the data.
摘要:
A data storage device for processing a command includes a host interface and a controller. The host interface stores program information sent within the command from a host. The controller decodes the program information that indicates a memory type to be accessed for the command. In addition, the controller determines whether the specified memory type can be accessed according to the command. The controller performs the command by accessing the memory type when the memory type specified by the program information is available for access.
摘要:
In one aspect, a method of writing data in a flash memory system is provided. The flash memory system forms an address mapping pattern according to a log block mapping scheme. The method includes determining a writing pattern of data to be written in a log block, and allocating one of SLC and MLC blocks to the log block in accordance with the writing pattern of the data.
摘要:
There is provided an apparatus for controlling a flash memory, which includes a memory for storing a plurality of flash translation layers; and a control block for, when an access is requested from outside, determining a pattern of the access, selecting one of the flash translation layers stored in the memory based on the determination result, and managing mapping data of the flash memory based on the selected flash translation layer.
摘要:
In one aspect, a method of writing data in a flash memory system is provided. The flash memory system forms an address mapping pattern according to a log block mapping scheme. The method includes determining a writing pattern of data to be written in a log block, and allocating one of SLC and MLC blocks to the log block in accordance with the writing pattern of the data.
摘要:
A storage system includes a storage medium configured to store data and a buffer memory configured to buffer data to be written to the storage medium. The storage system further includes a controller configured to selectively transfer the buffered data to the storage medium responsive to an invalidity indicator received from an external source. For example, the invalidity indicator may comprise unwrite information received from an external source, e.g., information that indicates that selected buffered data corresponds to deleted file data.
摘要:
A device driver including a flash memory file system and method thereof and a flash memory device and method thereof are provided. The example device driver may include a flash memory file system configured to receive data scheduled to be written into the flash memory device, the flash memory file system selecting one of a first data storage area and a second data storage area within the flash memory device to write the received data to based upon an expected frequency of updating for the received data, the first data storage area configured to store data which is expected to be updated more often than the second data storage area. The example flash memory device may include a first data storage area configured to store first data, the first data having a first expected frequency for updating and a second data storage area configured to store second data, the second data having a second expected frequency of updating, the first expected frequency being higher than the second expected frequency.