Does Linux OS partition need to be defragged?

Answer 1

No you don't need to defrag linux because the way it writes the data to to hard drive means it doesn't start to get fragmented until abour 80% of the HD is used. Put simply when windows writes to the harddrive it writes on the first available free space, so when something is deleted the next block of data will be written to the space which if it's a bigger file will place the bit that doesn't fit the space on the next available space. If it's a smaller file it will leave a small space for part of the next file and so on.
Linux writes on any part of the partition so there is always enough room for the whole file, it also doesn't write it immediately so can check there is enough space for the file, it also knows where everything is. Until the partition starts to get full then some files will be fragmented.

for better expanations:
https://listman.redhat.com/archives/seawolf-list/2002-February/msg00124.html
http://www.salmar.com/pipermail/wftl-lug/2002-March/000603.html

Answer 2

Never! And, there are more than 5 different filesystems!

All are great! here is why: (The very long URL won't load here),
so, google.com and search for "why Linux no defrag"
"oneandoneis2" has the full skinny on it... as does linuxquestions.org

Get yours, FREE, andrun it in Live CDrom! http://pclinuxos.com

Answer 3

I never even thought of that in all these years.