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Date:      Sat, 22 Nov 2003 05:05:05 +0100
From:      "boyd, rounin" <boyd@insultant.net>
To:        "William Josephson" <jkw@eecs.harvard.edu>, <current@freebsd.org>
Subject:   Re: Unfortunate dynamic linking for everything
Message-ID:  <0a5901c3b0ad$cfb85220$b9844051@insultant.net>
References:  <2147483647.1069240727@[192.168.42.6]><20031120095214.GA68334@server.vk2pj.dyndns.org><050d01c3afa8$1dfb97a0$b9844051@insultant.net><156539179.20031121001033@andric.com><061f01c3afbd$4692a040$b9844051@insultant.net><3FBD788A.4070809@mindspring.com><20031121025952.GA85809@saboteur.dek.spc.org> <20031121202713.GA4060@mero.morphisms.net>

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From: "William Josephson" <jkw@eecs.harvard.edu>
> People at Berkeley (and elsewhere) have done user studies to try to
> quantify this sort of thing.  It is pretty clear that with modern
> hardware, most failures are due to human error.  That's not to say
> that hardware and software faults aren't real problems, too, but it
> is more common that someone, say, pulls the wrong drive from the
> RAID-5 array, resulting in an unnecessary double disk fault.

that means your raid 5 is bust.  i've seen raid 5 fail and it just picks
another disk in the 'free' pool like nothing has happened.

a study?  it's bleeding obvious.



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