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Reading a File from Disk: A Recap

Explore the detailed process of reading a file from disk in a log-structured file system. Understand how the checkpoint region and inode map work together to locate and read file data efficiently, and compare this process to traditional UNIX file systems for a practical grasp of persistence in operating systems.

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To make sure you understand how LFS works, let us now walk through what must happen to read a file from disk. Assume we have nothing in memory to begin. The first on-disk data structure we must read ...