"The Butter/Better/B-tree Filesystem, Btrfs, is supposedly
destined to become the default Linux filesystem. What makes it
special, and what's wrong with good old tried-and-true
Ext2/3/4?
Linux supports a gigantic number of filesystems: removable
media, network, cluster, cloud, journaling, virtual machine,
compressed, embedded, hardware inter-connect, pseudo-filesystems
that live only in memory, Mac and Windows filesystems, and many
more.
