From: Josh Litherland <josh@temp123.org>
To: Neil Brown <neilb@suse.de>
Cc: linux-raid@vger.kernel.org
Subject: Re: Superblock checksum problems
Date: Mon, 04 Sep 2006 17:54:53 -0400 [thread overview]
Message-ID: <1157406893.2990.22.camel@localhost> (raw)
In-Reply-To: <17660.39978.663609.990424@cse.unsw.edu.au>
On Tue, 2006-09-05 at 07:35 +1000, Neil Brown wrote:
> Try
> for i in `seq 1 20`; do
> dd if=/dev/sda of=/tmp/try-$i conv=direct
> done
> for i in `seq 2 20`; do
> cmp -l /tmp/try-1 /tmp/try=$i
> done
I tried a variant of this:
for i in `seq 1 20`; do
dd if=/dev/sda1 of=/tmp/try-$i count=4 bs=4096 iflag=direct
sleep 0.25
done
Tried it with and without the sleep, on all 4 drives. In all cases, the
20 "try" files were identical.
--
Josh Litherland (josh@temp123.org)
prev parent reply other threads:[~2006-09-04 21:54 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-02 22:36 Superblock checksum problems Josh Litherland
2006-09-04 5:12 ` Neil Brown
2006-09-04 16:00 ` Josh Litherland
2006-09-04 20:55 ` Josh Litherland
2006-09-04 21:13 ` Josh Litherland
2006-09-04 21:35 ` Neil Brown
2006-09-04 21:46 ` Josh Litherland
2006-09-04 23:11 ` Josh Litherland
2006-09-04 23:17 ` Neil Brown
2006-09-04 23:43 ` Henrik Holst
2006-09-06 7:07 ` Mario 'BitKoenig' Holbe
2006-09-06 13:26 ` Josh Litherland
2006-09-07 20:40 ` Josh Litherland
2006-09-04 21:54 ` Josh Litherland [this message]
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