Is there a ext3 defragmenter?

Is there any defragmenter out there for ext3?

Solution 1:

http://launchpad.net/e2defrag.

Solution 2:

Shake

Solution 3:

There is a useful article but it's a few years old:
DEFRAGMENTING LINUX EXT3 FILESYSTEMS USING SHAKE AND DEFRAG

There are a few tools for this, and I'm going to cover Shake and Defrag.

1. Shake is a defragmenter that runs in userspace, without the need of patching the kernel and while the system is used (for now, on GNU/Linux only).

It works by rewriting fragmented files. But it has some heuristics that could make it more efficient than other tools, including defrag and, maybe, xfs_fsr.

2. Defrag is a shell script. Download the latest version from HERE.

Using Defrag is very easy: copy the script in a folder you want to defragment. This can be just a normal folder or the top level directory of a partition.