linux-kernel - Is there something like multi-device fan out ?

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Message-ID: <20081212000452.0ff5dfd9@werewolf.home>
Date:	Fri, 12 Dec 2008 00:04:52 +0100
From:	"J.A. Magallon" <magallon@...zar.es>
To:	Linux-Kernel <linux-kernel@...r.kernel.org>
Subject: Is there something like multi-device fan out ?

Hi...

I suspect this sounds like a strange question.
A friend has a company that distributes his own catalogs on CD-ROM, and wants
to build a mass-burning box (something like 8 CD/DVD burners), running linux.

The problem is how to burn an image at the same time to all writers.
I could write a script, but I think this would launch 8 reads on the same
iso file, all desynchronized, that will drive nuts the disk.
Is there any way to get all the /dev/sr? devices and build something like
a fan-out device, or like a RAID1-CDROM or whatever ?
I suppose it has to be done at the kernel level...

TIA

-- 
J.A. Magallon                       \                     Software is like sex:
                                     \               It's better when it's free
Mac OS X Leopard 10.5.5 (build 9F33) x86-64 - Darwin Kernel 9.5.0
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