Date: 16 Aug 2005 09:45:49 -0400 From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org> To: Lei Sun <lei.sun@gmail.com> Cc: questions@freebsd.org Subject: Re: disk fragmentation, <0%? Message-ID: <44d5oeov02.fsf@be-well.ilk.org> In-Reply-To: <d396fddf050815164938c84cae@mail.gmail.com> References: <d396fddf05081421343aeded9d@mail.gmail.com> <200508151320.j7FDKCVq025507@clunix.cl.msu.edu> <20050815203917.GA75533@xor.obsecurity.org> <d396fddf050815164938c84cae@mail.gmail.com>
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Don't top-post, please. Lei Sun <lei.sun@gmail.com> writes: > Then, my other question is, > > If the file space allocation works like Glenn said earlier, how come > with the exact same files from 2 different installations using the > exact procedures, can result in different fragmentation? > > in the atacontrol raid1 failure case, /dev/ar0s1a: ... 0.5% fragmentation > in the new build case, /dev/ar0s1a: ... 0.0% fragmentation > > That doesn't seems to make a lot of sense. There are lots of possible explanations, including (non-harmful) race conditions. Is there some reason you care?
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