18240169. STORAGE DEVICE INCLUDING NONVOLATILE MEMORY DEVICE AND OPERATING METHOD OF STORAGE DEVICE simplified abstract (Samsung Electronics Co., Ltd.)
Contents
STORAGE DEVICE INCLUDING NONVOLATILE MEMORY DEVICE AND OPERATING METHOD OF STORAGE DEVICE
Organization Name
Inventor(s)
Jooyoung Hwang of Suwon-si (KR)
Gyeongmin Kim of Suwon-si (KR)
Joon-Whan Bae of Suwon-si (KR)
Seunghyun Choi of Suwon-si (KR)
STORAGE DEVICE INCLUDING NONVOLATILE MEMORY DEVICE AND OPERATING METHOD OF STORAGE DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18240169 titled 'STORAGE DEVICE INCLUDING NONVOLATILE MEMORY DEVICE AND OPERATING METHOD OF STORAGE DEVICE
Simplified Explanation
The abstract describes a storage device with a nonvolatile memory device and a controller that performs write and erase operations on memory cells. The controller allocates zones in the memory space, manages logical addresses of data, and includes an internal buffer for storing data to be written.
- The storage device includes a nonvolatile memory device with memory cells and a controller.
- The controller performs write and erase operations on memory cells.
- The controller allocates zones in response to a request from an external host device.
- Two or more erase units are selected for each zone based on a zone map table.
- Logical addresses of data are managed sequentially in the zones.
- An internal buffer stores data to be written in a zone.
- A backup operation is performed by selecting an erase unit and cell type based on the zone's feature.
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- Potential Applications
- Data storage devices
- Solid-state drives
- Embedded systems
- Problems Solved
- Efficient allocation of memory space
- Sequential management of data
- Backup operation for data reliability
- Benefits
- Improved data organization
- Enhanced data reliability
- Efficient use of memory space
Original Abstract Submitted
A storage device, including: a nonvolatile memory device including a plurality of memory cells; and a controller configured to perform a write operation on at least one write unit included in the plurality of memory cells, and to perform an erase operation on at least one erase unit included in the plurality of memory cells, wherein the controller is further configured to: allocate a plurality of zones to a storage space of the nonvolatile memory device in response to a request of an external host device, select two or more erase units among a plurality of erase units of the plurality of memory cells to be allocated to each of the plurality of zones based on a zone map table, fixedly and sequentially manage logical addresses of data written in the plurality of zones, wherein the controller includes an internal buffer configured to store first data to be written in a first zone from among the plurality of zones, and wherein the controller is further configured to perform a backup operation for the first data by selecting an erase unit in which the first data are to be written, and a cell type of the erase unit based on a feature of the first zone.
