Date: Thu, 17 Aug 2006 03:35:14 -1000 From: Antony Mawer <fbsd-stable@mawer.org> To: freebsd-stable@freebsd.org Subject: The need for initialising disks before use? Message-ID: <44E47092.7050104@mawer.org>
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Hi list,
A quick question - is it recommended to initialise disks before using
them to allow the disks to map out any "bad spots" early on? I've seen
some "uninitialised" disks (ie. new disks, thrown into a machine,
newfs'd) start to show read errors within a few months of deployment,
which I thought one or two might seem okay, but on a number of machines
is more than a coincidence...
Is it recommended/required to do something like:
dd if=/dev/zero of=/dev/ad0 bs=1m
before use to ensure the drive's sector remappings are all in place,
before then doing a newfs?
FWIW, I've been seeing this on more 6.0 systems that I would have
thought to be just chance...
Cheers
Antony
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