Direct-Mapped Flash Storage for Efficient Directory Copying
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing data storage systems face inefficiencies in data management and storage operations, particularly in handling large datasets and ensuring data integrity across multiple storage nodes.
Innovation Solution
The implementation of a direct-mapped flash storage system that addresses data blocks directly without address translation by the storage controllers, utilizing non-volatile solid-state storage units and storage array controllers to manage data storage and retrieval efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional storage controllers perform address translation for data blocks, then data can be stored and retrieved, but write operations become redundant and efficiency decreases
Solution Approach 1:
The patent extracts the address translation function from the storage controller and eliminates it entirely. By using direct-mapped flash storage, data blocks are written directly to their final physical locations without translation overhead, removing the redundant translation step that caused unnecessary write operations and energy consumption.
Solution Approach 2:
The patent employs copying mechanisms to replicate data blocks across multiple storage nodes simultaneously. When data is written to one node, copies are automatically created on other nodes through the direct-mapped architecture, eliminating the need for sequential write operations and reducing overall write overhead.
2Reliability
If data is replicated across multiple storage nodes for reliability, then data integrity is improved, but the complexity of managing and synchronizing data increases
Solution Approach 1:
The patent segments data into discrete blocks that can be independently managed and replicated. Each data block has a unique identifier and can be copied to specific storage nodes without affecting other data, simplifying the replication process while maintaining data integrity across multiple nodes.
Solution Approach 2:
The direct-mapped flash storage system performs automatic data replication without requiring complex management interventions. The system self-manages data distribution by directly mapping data blocks to storage locations, eliminating the need for complex synchronization protocols and manual data management.
3Ease of operation
If address translation is performed by storage controllers, then data can be located and accessed, but processing time and operational overhead increase
Solution Approach 1:
The patent removes the address translation function from the storage controller architecture. By implementing direct-mapped flash storage, data blocks are accessed directly through their physical addresses without requiring translation operations, significantly reducing processing time and operational overhead while maintaining ease of data access.
Data Source
AI summary
An illustrative method is disclosed for efficiently copying a source directory to a target directory. For example, the method may include receiving, by a storage system, a request to copy a source directory to a target directory; generating, by the storage system in response to the request, directory version metadata for the target directory; and mapping, by the storage system in response to the request, the target directory to metadata of the source directory such that the target directory reuses the metadata of the source directory within a target namespace identified by the directory version metadata for the target directory.