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Date: Fri, 09 Feb 2007 14:07:34 -0500
From: Sean Bryant <sean@cyberwang.net>
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To: Antony Mawer <fbsd-stable@mawer.org>,
	Sean Bryant <sean@cyberwang.net>, freebsd-stable@freebsd.org,
	Dominic Marks <dom@helenmarks.co.uk>
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Cc: 
Subject: Re: dd as an imaging solution.
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John-Mark Gurney wrote:
> 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...
> 
Can you explain this?