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Date: Tue, 6 Feb 2007 21:51:31 -0800
From: John-Mark Gurney <gurney_j@resnet.uoregon.edu>
To: Antony Mawer <fbsd-stable@mawer.org>
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	Dominic Marks <dom@helenmarks.co.uk>
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Cc: freebsd-stable@freebsd.org, Dominic Marks <dom@helenmarks.co.uk>,
	Sean Bryant <sean@cyberwang.net>
Subject: Re: dd as an imaging solution.
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Antony Mawer wrote this message on Tue, Feb 06, 2007 at 17:04 +1100:
> On 6/02/2007 1:47 PM, Sean Bryant wrote:
> >Dominic Marks wrote:
> >>Check out G4U (NetBSD based)
> >
> >The only problem I can see here is that multiple parallel reads will 
> >have serious performance impacts, thus greatly increasing the cloning of 
> >the disk.
> >
> >The solution with dd, tee and netcat would just daisy chain the copy 
> >across the network which would be way faster.
> 
> Now all you need is G4U to operate in a multicast manner like Symantec 
> Ghost Corporate Edition, and your transfer speed wouldn't reduce with 
> each additional client (eg. 100mbps for 1 client, 50mbps each for 2 
> clients, 33.3mbps each for 3 clients, ...)

Add FEC to the multicast, and you can constantly stream the data, and
not have to worry about dropped segments as much...

-- 
  John-Mark Gurney				Voice: +1 415 225 5579

     "All that I will do, has been done, All that I have, has not."