I have been taught that a Linux file system doesn't fragment. HOwever I'm was looking at Linux from scratch (section 6.25.2) and have discovered that isn't true. A couple of the programs the e2fsprogs installs are:
e2freefrag
Reports free space fragmentation information
and
e4defrag
Online defragmenter for ext4 filesystems
Well..... maybe I learned it doesn't need to be defragmented. However, e4defrag seems to indicate it does need to be defragged. Could I get some comments?