Unlabelled Inode Block Pointer Simulator V1

Inode Block Pointer Simulator V1

By At July 08, 2026 0

Interactive diagram of the filesystem inode layer sitting above the disk: a directory entry maps a filename to an inode, the inode holds direct, single-indirect, and double-indirect block pointers, and those pointers ultimately reference blocks on the flat disk shown earlier

Inode structure linking a directory entry to disk blocks A directory entry maps a filename to an inode. The inode contains metadata and an array of block pointers: twelve direct pointers, one single-indirect pointer, and one double-indirect pointer. Clicking a pointer reveals which physical disk block it ultimately references, with indirect pointers requiring one or two extra hops through pointer blocks before reaching data. Directory entry Inode block pointers Disk blocks (from the flat LBA strip)
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