What is Btrfs and how does it compare to ext4 and ZFS? Subvolumes, snapshots, compression, RAID, and practical configuration examples.

What is OpenZFS and why should you use it? Pools, datasets, snapshots, compression, RAID-Z, and practical configuration examples on Linux.

What is LVM (Logical Volume Manager) on Linux? Creating physical volumes, volume groups, and logical volumes, snapshots, thin provisioning, and practical commands.