Need help with raid layout

[Christopher Lemire]

I've been using Raid 1 for a while now. It increases my read speeds a little
bit I guess, but I haven't had a hard drive fail where it ever did me any
good. I just yanked a hard drive that was running in the raid out of my
computer and watched Linux not crash and continue to run uninterrupted and
also did simulated failures and rebuilding with mdadm. What I really want is
performance. Raid 0 offers more performance than 5 and raid is not a backup
solution, so what I want to do is this. Many people complains about raid 0,
but I have an idea. I want cron jobs to run rsync for backups synchronizing
my home folder to a new 640 gb Seagate hdd I'm looking at buying. The
backups should be automated and done often, so, I can have @reboot in my
crontab and rsync run by cron at times I am not likely to be doing anything
or much with my computer. And if rsync only has to copy only new or modified
files, it shouldn't take long at all to perform a backup and maybe I can
have it run ever 3 hours or whenever the computer has been idle for 15
minutes. I don't know how to do that except I think
gnome-screensaver-command could check if the screensaver is active and if it
is, I'm not using my computer, and rsync could go to work backuping up my
files. The two drives I'm using for raid 1 right now that I want to
reinstall Ubuntu 8.10 with raid 0 with are both identical sata2 Seagates 320
gb drives. I want the partitioning scheme to be identical on both, but how
would I do that if grub can't boot a Linux kernel that's in raid 0? I've
made a /boot partition and put it in Raid 1 before but people have told me
that its bad to have to have raid 1 and raid 0 that way and my performance
would be lost, so how can I keep both drives with the same partitioning
layout with Raid 0?

-- 
Christopher Lemire <christopher.lemire at gmail.com>
Fedora 64 bit Linux Raid Level 1
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