Design File System

Functional Requirements:

• Users can create, read, update, and delete files and directories.
• Files and directories are organized in a hierarchical structure (like a tree).
• Support for basic file operations: create, read, write, delete, rename, move.
• Support for directory operations: create, list contents, delete, rename, move.
• Each file and directory has metadata (e.g., name, size, timestamps).

Non-Functional Requirements:

• The system should be reliable and consistent.
• Should support multiple concurrent users.
• Reasonable performance for basic operations (not optimized for massive scale or huge files).
• The design should be simple and extensible for future features (e.g., permissions, versioning).

Out of Scope:

• No need to support distributed storage or replication for now.
• No need to implement advanced features like file locking, permissions, or symbolic links at this stage.