[ Thanks to Petros Koutoupis for
this link. ]
“Let us say that very soon, people are going to start
trusting Btrfs. We know that Btrfs’ primary focus is server side
hosting. It comes equipped with its own defragmentation tools that
run both online and offline. So why would I need support for
anything else. XFS has been out for many years and has gained the
trust of storage administrators worldwide as a stable, excellent
performing and extremely scalable file system solution. XFS offers
both online and offline defragmentation. AdvFS supports online
defragmentation and recently I have even heard proposals for an
Ext4-fs online defragmentation implementation.”