Allocate-on-flush

Allocate-on-flush (also called delayed allocation) is a computer file system feature implemented in the HFS+, XFS, Reiser4, ZFS, Btrfs and ext4 file systems. The feature also closely resembles an older technique that Berkeley's UFS called "block reallocation".

Allocate-on-flush

Allocate-on-flush (also called delayed allocation) is a computer file system feature implemented in the HFS+, XFS, Reiser4, ZFS, Btrfs and ext4 file systems. The feature also closely resembles an older technique that Berkeley's UFS called "block reallocation".