Super Sector Data Layout for Higher Magnetic Storage Density
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Solution Overview
Problem
Current data storage systems on magnetic storage devices face inefficiencies due to substantial overhead and wasted areas in user data regions, reducing data density, as they rely on multiple servo data regions and separate codewords that do not effectively utilize storage medium space.
Innovation Solution
The implementation of a data storage system that concatenates codewords into a super sector data set with a common header, allowing for efficient use of orphan regions and reducing overhead by using a single preamble and synchronization pattern across multiple codewords, thereby enhancing data density and storage efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple separate codewords are used in user data regions, then data can be stored with traditional formatting, but overhead and wasted areas increase reducing data density
Solution Approach 1:
The patent combines multiple separate codewords into a single super sector data set with a common header. Instead of having individual headers and synchronization patterns for each codeword, the invention merges them into one unified structure that serves multiple codewords, thereby reducing overhead and increasing data density.
Solution Approach 2:
The common header in the super sector data set serves multiple functions simultaneously: it provides synchronization for multiple codewords, contains addressing information for all contained codewords, and reduces redundant data structures. This multi-functional approach eliminates the need for separate headers for each codeword.
2Quantity of substance
If traditional servo data regions are used between user data regions, then head positioning is maintained, but storage efficiency decreases due to wasted space
Solution Approach 1:
The invention extracts and removes traditional servo data regions from between user data regions. By taking out these redundant servo wedges that do not contribute to user data storage, the patent increases usable storage space while maintaining head positioning through alternative mechanisms embedded in the user data structure itself.
Solution Approach 2:
The patent segments the storage medium into continuous user data regions without traditional servo interruptions. The data is organized into super sector data sets that can be independently addressed and retrieved, allowing the system to maintain reliability through logical segmentation rather than physical servo wedges.
3Ease of manufacture
If separate headers are used for each codeword, then data structure is simple and straightforward, but overhead increases reducing storage efficiency
Solution Approach 1:
The patent merges multiple individual headers into a single common header that serves the entire super sector data set. This unified header contains all necessary addressing and synchronization information for multiple codewords, maintaining structural simplicity while dramatically improving storage efficiency by eliminating redundant header repetitions.
Data Source
AI summary
Various embodiments of the present invention provide systems and methods for preparing and accessing super sector data sets. As an example, a data storage system including a storage medium is disclosed. The storage medium includes a first servo data region and a second servo data region separated by a user data region. The user data region includes at least a portion of a first codeword and a portion of a second codeword that are together associated with a common header data.