Published at LXer:
There is a common misconception among GNU/Linux users that our systems never ever need to be defragmented. This stems from the success of the journalized filesystems used by most distributions including EXT2,3 and 4, JFS, ZFS, XFS, ReiserFS and BTRFS. Fragmentation though can still be an issue though, especially for users that use space limited disks that may not offer many file allocation options.
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