<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"> --- On Mon, 2/16/09, Patrick O'Callaghan <pocallaghan@gmail.com> wrote: <blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;">From: Patrick O'Callaghan <pocallaghan@gmail.com> Subject: Re: Can somebody explain this? du & ls showing different sizes To: fedora-list@redhat.com Date: Monday, February 16, 2009, 8:45 AM <pre>On Mon, 2009-02-16 at 07:13 +0000, Vijay Gill wrote: > 2009/2/16 Patrick O'Callaghan <pocallaghan@gmail.com>: > > On Sun, 2009-02-15 at 23:45 +0000, Vijay Gill wrote: > >> > That could be because you're using XFS. > >> > > >> > poc > > [...] > >> Thanks but how does that statement explain the behaviour I am seeing? > > > > I'm reaching here, but since XFS uses allocation strategies different > > from the more familiar ext3 system, I wondered if 'du' could in some > > circumstances report larger numbers than "normal". > > > > Apologies if I'm raving. > > > > poc > > > > -- > > fedora-list mailing list > > fedora-list@redhat.com > > To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list > > Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines > > > > You are spot on Pat. XFS allws you to pre-allocate contiguous area of > disk for a file when it is opened for writing data. This is determined > by allocsize parameter during mount and is used foe reducing > fragmentation(fragmentation in Linux? yes siree, it does happen in > Linux too). > > In my case I have provided 1M which is far much less than 512M which > XFS is pre-allocating. This is what caught my eye. It's nice to have one's intuition confirmed once in a while :-) poc Hi Poc Where is the overallocation parameter stored? Poc, I appreciate your expertise in the answers, but when you answer something about Linux, note that I have not your ideas of where to look for settings. Therefore, I am sure readers would like a hint about the directory/file in which this info is stored. Thanks and have a good weekend. Leslie </pre></blockquote></td></tr></table>