using 'dd' from one source to multiple destinations

[Lennart Sorensen]

On Mon, Jan 24, 2005 at 11:55:31AM -0500, Madison Kelly wrote:
> Hi all,
> 
>   I am looking to mirror mulptiple disks from a single source. I have 
> thought about using 'dd' but I can't find anything telling yea or neh if 
> this will work:
> 
> 'dd if=/dev/sda of=/dev/sdb of=/dev/sdc of=/dev/sdd'
> 
>   Would this work? If not, can anyone recommend an effective way to 
> mirrow a disk when the hard drives are identical (so partitions don't 
> need to be resized)? Thanks all!

Something like this might work:

dd if=/dev/sda | tee >(dd of=/dev/sdb) | tee >(dd of=/dev/sdc) | dd of=/dev/sdd

I didn't test it, but it ought to work.

Lennart Sorensen
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