The online resizing feature was originally developed by Andreas Dilger in July of 1999 for the 2.0.36 kernel. The availability of a Logical Volume Manager (LVM), motivated the desire for on-line resizing, so that when a logical volume was dynamically resized, the filesystem could take advantage of the new space. This ability to dynamically resize volumes and filesystems is very useful in server environments, where taking downtime for unmounting a filesystem is not desirable. After missing the code freeze for the 2.4 kernel, the ext2online code was finally included into the 2.6.10 kernel and e2fsprogs 1.36 with the assistance of Stephen Tweedie and Theodore Ts'o.