File System Implementation - Deep Dive into Persistent Storage Management
The chapter provides an in-depth exploration of file system implementation in operating systems, focusing on the architecture, metadata structures, directory management, various file allocation methods, and free-space management. It emphasizes the layered structure of file systems, the essential metadata necessary for file operations, and different strategies to efficiently manage disk resources.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- File systems act as an abstraction layer between applications and physical storage devices.
- The layered architecture of file systems promotes modular design and separation of concerns.
- Various file allocation methods, including contiguous, linked, and indexed allocation, impact performance and space utilization.
Key Concepts
- -- File System Structure
- The logical and modular architecture that organizes how data is stored, managed, and accessed on storage devices.
- -- Metadata
- Data that describes other data, such as file attributes, locations, and permissions, essential for managing files in a file system.
- -- Allocation Methods
- Strategies used by operating systems to assign physical disk blocks for file storage, including contiguous, linked, and indexed methods.
- -- FreeSpace Management
- Techniques used to track and manage unused disk space to optimize file storage and retrieval operations.
Additional Learning Materials
Supplementary resources to enhance your learning experience.