Front-End Object Store Mapping for Low-Latency Flash Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing storage systems face inefficiencies in managing and optimizing data storage operations, particularly in flash-based storage systems, due to redundant processes performed by both higher and lower level controllers, leading to increased latency and reduced reliability.
Innovation Solution
Implementing a direct-mapped flash storage system where data blocks are addressed directly by the operating system without address translation by storage controllers, offloading device management responsibilities to the system level, and utilizing zoned storage devices with dynamic zone management to optimize data allocation and retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If storage controllers perform address translation for data blocks, then data access flexibility is improved, but access latency increases
Solution Approach 1:
The patent extracts the address translation function from the storage controller and relocates it to the operating system. This removes the translation overhead from the data path, allowing direct addressing of flash memory blocks by the OS without controller-mediated translation, thereby reducing access latency while maintaining flexibility through OS-level address management.
Solution Approach 2:
The operating system acts as an intermediary between the application and the flash memory, directly managing block addresses and data placement. This eliminates the storage controller as an intermediary in the address translation process, reducing the number of processing steps and improving access speed while the OS maintains the necessary address mapping flexibility.
2Adaptability or versatility
If both higher and lower level controllers manage data operations, then functional capabilities are improved, but system complexity increases
Solution Approach 1:
The patent extracts device management responsibilities from the storage controller and transfers them to the operating system. The OS directly handles data block addressing, placement decisions, and flash memory management, eliminating redundant controller functions and simplifying the overall system architecture while maintaining full functional capabilities at the OS level.
Solution Approach 2:
The operating system serves itself by directly managing flash memory operations without requiring a dedicated storage controller. The OS performs self-service functions including address translation, data placement, wear leveling, and garbage collection, eliminating the need for complex multi-layer controller management while preserving all necessary functional capabilities.
3Reliability
If redundant write operations are performed by controllers, then data reliability is improved, but write efficiency decreases
Solution Approach 1:
The patent extracts redundant controller-mediated write operations and replaces them with direct OS-managed writes. The operating system directly programs flash memory blocks without controller intervention, eliminating redundant translation and management steps that reduced write efficiency, while maintaining reliability through OS-level error handling and data integrity mechanisms.
Data Source
AI summary
An object store service is operated as a front-end service that stores objects of multiple buckets as objects of multiple back-end object stores. The object store service receives an object to be stored at a particular bucket of the multiple buckets. An object store operation is issued to a particular back-end object store of the multiple of back-end object stores having the particular bucket. The object store operation includes one or more characteristics to be associated with the object stored at the particular bucket.