Filesystems in Depth

Filesystems in Depth is a practical engineering guide to how storage systems actually work — from the block-and-inode model every Unix filesystem inherits, through modern extent trees, journaling, and copy-on-write, to the distributed and object-storage systems that underpin modern infrastructure. It covers ext4, XFS, Btrfs, and ZFS in depth, then moves outward to NFS, CephFS, and S3-compatible ob...