Tag: design-storage

All the articles with the tag "design-storage".

• System Design - How Git Internals Work

  2 May, 2026

  How Git works under the hood: the four object types (blob, tree, commit, tag), content-addressable storage, refs and branches, the staging area (index), packfiles and delta compression, and merge strategies — with ASCII diagrams and source code walkthrough from the git/git repository.

• System Design - How Redis Persistence Works

  28 Apr, 2026

  How Redis persists data to disk: RDB snapshots via fork() and copy-on-write, AOF (Append Only File) logging, fsync policies, AOF rewriting, and the hybrid RDB+AOF approach. Source code walkthrough from the redis/redis repository.