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Date:      Fri, 31 Oct 2008 16:04:02 +0100
From:      Ivan Voras <ivoras@freebsd.org>
To:        freebsd-questions@freebsd.org
Subject:   Re: fastest raw device copy?
Message-ID:  <gef6n6$crl$1@ger.gmane.org>
In-Reply-To: <490B17D2.6010000@kukulies.org>
References:  <490AC650.3000904@kukulies.org>	<20081031110159.GA30244@icarus.home.lan>	<gef0dq$l8a$1@ger.gmane.org> <490B17D2.6010000@kukulies.org>

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[-- Attachment #1 --]
Christoph Kukulies wrote:

> OK, I understand that 10000000 isn't good, I just thought it wouldn't
> harm. But if it is a transfer rate killer then I'd better think of
> typing ^C now. The command is running for 6 hours now.

No, with a size that isn't a multiple of sector sizes your transferred
data will be corrupted. Actually, it's surprising that your number even
works - the system should have complained when you requested that size
for bs.

> An idea how I can check the current amount of transfered byed alongside
> the running dd command? Or watch the current i/o rate?

hit Ctrl-T while running dd.


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