Flash Storage Sector Pre-Erasure for Continuous Data Writes
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Solution Overview
Problem
Existing data storage methods in storage devices, such as flash memory, suffer from low efficiency due to the need to erase data in a storage sector before storing new data, leading to inefficient use of storage space.
Innovation Solution
A data storage method that identifies an empty primary storage sector and stores new data there while simultaneously erasing data in the next sector, ensuring that the device always has an empty sector available for immediate reuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data is stored in a storage sector, then storage capacity is utilized, but data erasure is required before storage which reduces storage efficiency
Solution Approach 1:
The patent applies preliminary action by pre-erasing the next storage sector before it is needed for data storage. The controller erases data in the second primary storage sector in advance, so when new data needs to be stored, an empty sector is already available. This eliminates the time-consuming erasure step during active storage operations, directly resolving the contradiction between storage efficiency and erasure time.
2Speed
If data erasure is performed before storage, then storage reliability is maintained, but storage speed decreases
Solution Approach 1:
The patent performs data erasure in advance during idle periods or background operations, maintaining storage reliability by ensuring sectors are properly erased before use. Simultaneously, it improves storage speed by having empty sectors ready when storage operations are initiated, eliminating the sequential dependency between erasure and storage.
Solution Approach 2:
The patent maintains continuous useful action by overlapping the erasure operation with storage operations. While data is being stored in the first primary storage sector, the controller simultaneously erases data in the second primary storage sector. This continuous background erasure ensures reliability is maintained without interrupting the storage workflow, thereby improving overall storage speed.
Data Source
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AI summary
This application relates to the field of data storage, and provides a data storage method and apparatus and a computer-readable storage medium, to improve data storage efficiency. The method includes: determining a first primary storage sector in a plurality of primary storage sectors of a storage device, where the primary storage sector includes a plurality of primary storage pages, the primary storage page includes a first storage area, the first storage area is configured to store external data, a first primary storage page does not exist in a plurality of primary storage pages of the first primary storage sector, and external data exists in a first storage area of the first primary storage page; storing to-be-stored external data in the first primary storage sector; and erasing data in a second primary storage sector in the plurality of primary storage sectors, where the second primary storage sector is a primary storage sector next to the first primary storage sector.