dd as an imaging solution.

Sean Bryant sean at cyberwang.net
Fri Feb 9 19:07:38 UTC 2007

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?

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