In Part 1 of this two part series at Linux Journal, Joe Edwards, Audin Malmin and Ron Shaker introduce RAID-1 — when to use it, and how to make a RAID-1 device for an ext2 partition. They write . . .

“Part 1 of this two-part series describes RAID, in which cases RAID-1 is useful, the RAID-1 installation requirements and how to install RAID-1 when you have an existing ext2 filesystem. Part 2 covers how to set up RAID-1 with an existing and a new swap partition, how to boot from a RAID-1 device, how to use a RAID-1 array to facilitate backing up a busy filesystem or a database that cannot be taken off line for long and how to set up monitoring scripts that will notify you of problems.”

“We wrote this article because we could not find a complete description of the setup process, and we wanted to document what we learned to make it easier for others to implement RAID-1. We learned how to implement RAID by reviewing the 'Software-RAID HOWTO' and Usenet correspondence as well as through trial and error. This article includes information from the HOWTO and Usenet archives. Please read the HOWTO and the other resources called out in the references section for a lot more information about RAID . . . “

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