how to defragment linux file system?

[NoOp]

On 03/19/2010 10:23 PM, NoOp wrote:
> On 03/19/2010 09:24 PM, Madhurya Kakati wrote:
>> Hi. I am new to linux. Please tell me how to defragment ext3 filesystem?
>> 
> 
> https://help.ubuntu.com/
>  https://help.ubuntu.com/community
>   https://help.ubuntu.com/community/CommonQuestions
> https://help.ubuntu.com/community/SwitchingToUbuntu/FromWindows
> https://help.ubuntu.com/community/LinuxFilesystemsExplained
> <quote>
> Fragmentation
> 
> Another common Windows practice that is not needed in Unix is
> defragmenting the hard drive. When NTFS and FAT write files to the hard
> drive, they don't always keep pieces (known as blocks) of files
> together. Therefore, to maintain the performance of the computer, the
> hard drive needs to be "defragged" every once in a while. This is
> unnecessary on Unix File systems due to the way it was designed. When
> ext3 was developed, it was coded so that it would keep blocks of files
> together or at least near each other.
> 
> No true defragmenting tools exist for the ext3 file system, but tools
> for defragmenting will be included with the ext4 file system.
> </quote>
> 
> are good places to start.
> 
> A. It is not necessary to defrag an ext3 filesystem.
> 

Sorry, forgot to add, for new users an excellent (and free) pocket guide
for Ubuntu is available at:
http://www.ubuntupocketguide.com/index_main.html
You can download the full version for free in PDF format:
http://www.ubuntupocketguide.com/download_main.html
 However, if you fee the guide is helpful to you, please consider
donating and/or purchasing a hardcopy from the author.