Re: Silly question, defrag

["Yura Umanets" <umanets@priocom.com>]

Anders Widman wrote:

>>"Don't"
>>
>
>>;-)
>>
>
>>ReiserFS (and ext2|3) do fragment somewhat, but the impact is not worth 
>>fighting over on most systems (certain environments are impacted more 
>>than others--mail servers and web caches being two examples that are hit 
>>pretty hard by fragmentation performance degradation).
>>
>
>>Besides, there is no method to defrag ReiserFS that I know of.  Hans 
>>plans repacking in some future version.  It will be nice, but the whole 
>>'defrag once a month to keep your computer running smoothly' is kind of 
>>a Windows thing.  Us Unix users don't really need to think so much on 
>>those sorts of things.
>>
>
>Fragmentation is a problem with all filesystems. There is generally no
>way around fragmentation other than "defragment".
>
>If you want to add/store a large file on a 30% full filesystem it
>would probably be stored on the first contingous area of free space.
>This works fine until you have used most of the space and changed the
>sizes of lots of files.
>
>Fragmentation is enevitable when you only have small contingous blocks
>of free/unallocated space and want to add a larger file. After some
>time you end up with heavily fragmentation on any filesystem. Of
>course, this doesn't happen when you don't add or change files.
>
>//Anders
>
This is one of things (fragmentation) about which people say "well known 
problem". Can you offer some solution?

-- 
Yury Umanets
IT Engineer of Priocom Corp.
Phone: +380 44 2011959, ICQ: 55494590