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When I decided it was time to make the file systems on my mail server use RAID 1 I looked around for a HOWTO. I could find loads that were either very old or incomplete or just so verbose I got old reading them.
So in the spirit of Linux I wrote my own and published it. Here it is.
I have followed this through for both Hardy and Intrepid.
Note. Do not just follow these instructions blindly copy/pasting the commands without reading and understanding why you are doing them. Some of the commands will fail on your system, due to drive device names, unique values such as UUIDs.Now backup your system or better still play around with a virtual copy of your system first!