[CentOS] Disk De-Fraging in Linux

Fri Sep 21 10:47:10 UTC 2007
William Warren <hescominsoon at emmanuelcomputerconsulting.com>

IME defragging is highly needed in busy servers that use a lot of disk. 
  Every single one of my clients have seen server performance tank when 
fragmentation goes over 15% or so..including the workstations.  In vista 
it's still necessary.

John R Pierce wrote:
>>> 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.
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My "Foundation" verse:
Isa 54:17  No weapon that is formed against thee shall prosper; and 
every tongue that shall rise against thee in judgment thou shalt 
condemn. This is the heritage of the servants of the LORD, and their 
righteousness is of me, saith the LORD.

-- carpe ductum -- "Grab the tape"
CDTT (Certified Duct Tape Technician)

Linux user #322099