[CentOS] Disk De-Fraging in Linux

Fri Sep 21 01:38:40 UTC 2007
John R Pierce <pierce at hogranch.com>

>> you're in luck cause you don't defrag an ext2/3 partition at all. defrag
>> is for windows file systems. Ext file systems are a different animal
>> all-together.
> Why?  What's different between NTFS and ext2/3 that defragging is
> needed in one but not the other?

IMHO, defragging is highly overrated in NTFS too.  it was the old 
FAT/FAT32 file system that suffered from horrible performance when 
heavily fragmented.

that said, the best way to defrag a file system is to dump it to 
external media, delete then recreate the file system and restore the dump.