From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Yura Umanets" Subject: Re: Silly question, defrag Date: Wed, 03 Apr 2002 21:47:24 +0300 Message-ID: <3CAB4E3C.6010101@priocom.com> References: <200204030017.12595@X-Message-Flag:> <3CAABBA6.3030101@swelltech.com> <1351472281.20020403203135@tnonline.net> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit list-help: list-unsubscribe: list-post: List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: ReiserFS List Cc: Joe Cooper 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