software raid
Carl Karsten
carl at personnelware.com
Tue Mar 21 23:48:51 UTC 2006
I have been messing around with software raid1 - mirroring 2 drives - including
the boot sectors. The goal is to be able to remove either drive and still have a
functioning system.
I realize that this is "not supported" given that "Add support for software
RAID." is on the http://grub.enbug.org/TodoList but I have heard it can be done
with some trickery: install grub on both drives and rely on the fact that
/dev/hda1 and /dev/hda2 and /dev/md0 are all "the same thing" as long as md0 is
the only one that gets written to.
But I did run into one problem: if you have ide master and slave, and you pull
the master, the slave dissapears and the box/bios won't see it so it won't boot
from it. so I am guessing I have to make each drive the master on a seperate
ide bus so that pulling one won't take out the other.
Before I spend too much time trying to make this work, anyone know of a HowTo
that outlines this?
CarlFK
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