XFS

Filesystems
acl
attr
mkfs.xfs - also see extra mount instructions
mount
xfs_copy
xfs_info
xfs_io
xfs_growfs
xfsdump
xfsrestore

Featureset

originally designed for media streaming requiring predictable latencies
filesystems as large as a million terabytes
extended attributes
ACLs
xfsdump, xfsrestore for backup and restore to local/remote SCSI
user, group quotas
align allocations based on hardware geometry
journal log can be on a separate device